Bug #1741934 “Kernel trace with xenial 4.4 (4.4.0-108.131, Cand...” : Bugs : linux package : Ubuntu

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Taihsiang Ho (tai271828) wrote on 2018-01-08: AlsaInfo.txt

#1

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apport information

description:	updated
tags:	added: apport-collected xenial
description:	updated

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Taihsiang Ho (tai271828) wrote on 2018-01-08: CRDA.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: CurrentDmesg.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: IwConfig.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: JournalErrors.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: Lspci.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: Lsusb.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: ProcCpuinfo.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: ProcCpuinfoMinimal.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: ProcEnviron.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: ProcInterrupts.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: ProcModules.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: PulseList.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: RfKill.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: UdevDb.txt

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Taihsiang Ho (tai271828) wrote on 2018-01-08: WifiSyslog.txt

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Joseph Salisbury (jsalisbury) wrote on 2018-01-08: Re: Kernel panic with xenial 4.4 stack (4.4.0-108.131, Candidate kernels for PTI fix)

#17

Upstream 4.4.110 commit 20cbe9a3aa2e was back ported to Xenial as commit f8365429a3dc1. However, the backport failed to remove a kfree(), which the original patch did:

@@ -381,7 +415,6 @@ static void release_ds_buffer(int cpu)
return;

per_cpu(cpu_hw_events, cpu).ds = NULL;
- kfree(ds);
}

I'm building a Xenial test kernel now with the kfree removed. I will post it shortly.

Changed in linux (Ubuntu):
importance:	Undecided → Critical
assignee:	nobody → Joseph Salisbury (jsalisbury)
status:	New → In Progress
Changed in linux (Ubuntu Xenial):
status:	New → In Progress
importance:	Undecided → Critical
assignee:	nobody → Joseph Salisbury (jsalisbury)

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Taihsiang Ho (tai271828) wrote on 2018-01-08:

#18

Download full text (6.6 KiB)

Trusty is affected.

Tested the kernel 4.4.0-108.131~14.04.1 with these platforms and their pre-installed images:
- CID 201603-21231 (Dell Latitude E5414)
- And many platforms

[Kernel Message]

Jan 8 23:00:15 201603-21231 kernel: [ 24.201794] ------------[ cut here ]------------
Jan 8 23:00:15 201603-21231 kernel: [ 24.201814] kernel BUG at /build/linux-lts-xenial-5Z_8Kc/linux-lts-xenial-4.4.0/mm/slub.c:3627!
Jan 8 23:00:15 201603-21231 kernel: [ 24.201840] invalid opcode: 0000 [#1] SMP
Jan 8 23:00:15 201603-21231 kernel: [ 24.201855] Modules linked in: nvram msr bnep rfcomm snd_soc_skl snd_hda_codec_hdmi snd_soc_skl_ipc intel_rapl snd_hda_ext_core snd_soc_sst_ipc dell_led x86_pkg_temp_thermal intel_powerclamp snd_soc_sst_dsp snd_soc_core coretemp snd_compress cdc_mbim cdc_wdm qcserial ac97_bus cdc_ncm usb_wwan snd_hda_codec_realtek snd_hda_codec_generic kvm_intel usbnet usbserial btusb snd_pcm_dmaengine mii dw_dmac_core btrtl kvm snd_hda_intel snd_hda_codec irqbypass snd_hda_core dell_laptop dcdbas snd_hwdep crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 snd_pcm lrw hci_uart gf128mul btbcm(OE) dell_smm_hwmon brcmfmac(OE) snd_seq_midi snd_seq_midi_event btqca btintel dell_wmi snd_rawmidi glue_helper bluetooth ablk_helper snd_seq cryptd brcmutil(OE) dm_multipath cfg80211(OE) acpi_als kfifo_buf i2c_hid snd_seq_device mei_me joydev input_leds snd_timer compat(OE) ppdev serio_raw parport_pc lp parport industrialio snd hid mei intel_vbtn dell_smo8800 shpchp 8250_fintek soc_button_array sparse_keymap acpi_pad tpm_crb pinctrl_sunrisepoint pinctrl_intel mac_hid intel_lpss_acpi intel_lpss soundcore dell_rbtn(OE) btrfs xor raid6_pq dm_mirror dm_region_hash dm_log uas usb_storage i915_bpo intel_ips i2c_algo_bit drm_kms_helper syscopyarea sysfillrect e1000e sysimgblt fb_sys_fops psmouse ptp drm pps_core ahci libahci wmi video fjes
Jan 8 23:00:15 201603-21231 kernel: [ 24.202296] CPU: 3 PID: 21 Comm: watchdog/3 Tainted: G OE 4.4.0-108-generic #131~14.04.1-Ubuntu
Jan 8 23:00:15 201603-21231 kernel: [ 24.202326] Hardware name: Dell Inc. Latitude 5414/0992HR, BIOS 1.0.0 05/04/2016
Jan 8 23:00:15 201603-21231 kernel: [ 24.202349] task: ffff8801485f6900 ti: ffff880148200000 task.ti: ffff880148200000
Jan 8 23:00:15 201603-21231 kernel: [ 24.202372] RIP: 0010:[<ffffffff811e217a>] [<ffffffff811e217a>] kfree+0x14a/0x150
Jan 8 23:00:15 201603-21231 kernel: [ 24.202398] RSP: 0018:ffff880148203d60 EFLAGS: 00010246
Jan 8 23:00:15 201603-21231 kernel: [ 24.202415] RAX: ffffea0005370120 RBX: ffff88014dc04840 RCX: ffffea0005204820
Jan 8 23:00:15 201603-21231 kernel: [ 24.202436] RDX: 000077ff80000000 RSI: ffffea0005204000 RDI: ffff88014dc04840
Jan 8 23:00:15 201603-21231 kernel: [ 24.202457] RBP: ffff880148203d78 R08: 0000160000000000 R09: ffffea0005204000
Jan 8 23:00:15 201603-21231 kernel: [ 24.202478] R10: 0000000000000001 R11: ffffea0005370100 R12: 0000000000000000
Jan 8 23:00:15 201603-21231 kernel: [ 24.202499] R13: ffffffff8100eb19 R14: 0000000000000003 R15: 0000000000000000
Jan 8 23:00:15 201603-21231 kernel: [ 24.202521] FS: 0000000000000000(0000) GS:ffff88014dd80000(0000) ...

Trusty is affected.

Tested the kernel 4.4.0-108.131~14.04.1 with these platforms and their pre-installed images:
 - CID 201603-21231 (Dell Latitude E5414)
 - And many platforms

[Kernel Message]

Jan  8 23:00:15 201603-21231 kernel: [   24.201794] ------------[ cut here ]------------
Jan  8 23:00:15 201603-21231 kernel: [   24.201814] kernel BUG at /build/linux-lts-xenial-5Z_8Kc/linux-lts-xenial-4.4.0/mm/slub.c:3627!
Jan  8 23:00:15 201603-21231 kernel: [   24.201840] invalid opcode: 0000 [#1] SMP 
Jan  8 23:00:15 201603-21231 kernel: [   24.201855] Modules linked in: nvram msr bnep rfcomm snd_soc_skl snd_hda_codec_hdmi snd_soc_skl_ipc intel_rapl snd_hda_ext_core snd_soc_sst_ipc dell_led x86_pkg_temp_thermal intel_powerclamp snd_soc_sst_dsp snd_soc_core coretemp snd_compress cdc_mbim cdc_wdm qcserial ac97_bus cdc_ncm usb_wwan snd_hda_codec_realtek snd_hda_codec_generic kvm_intel usbnet usbserial btusb snd_pcm_dmaengine mii dw_dmac_core btrtl kvm snd_hda_intel snd_hda_codec irqbypass snd_hda_core dell_laptop dcdbas snd_hwdep crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 snd_pcm lrw hci_uart gf128mul btbcm(OE) dell_smm_hwmon brcmfmac(OE) snd_seq_midi snd_seq_midi_event btqca btintel dell_wmi snd_rawmidi glue_helper bluetooth ablk_helper snd_seq cryptd brcmutil(OE) dm_multipath cfg80211(OE) acpi_als kfifo_buf i2c_hid snd_seq_device mei_me joydev input_leds snd_timer compat(OE) ppdev serio_raw parport_pc lp parport industrialio snd hid mei intel_vbtn dell_smo8800 shpchp 8250_fintek soc_button_array sparse_keymap acpi_pad tpm_crb pinctrl_sunrisepoint pinctrl_intel mac_hid intel_lpss_acpi intel_lpss soundcore dell_rbtn(OE) btrfs xor raid6_pq dm_mirror dm_region_hash dm_log uas usb_storage i915_bpo intel_ips i2c_algo_bit drm_kms_helper syscopyarea sysfillrect e1000e sysimgblt fb_sys_fops psmouse ptp drm pps_core ahci libahci wmi video fjes
Jan  8 23:00:15 201603-21231 kernel: [   24.202296] CPU: 3 PID: 21 Comm: watchdog/3 Tainted: G           OE   4.4.0-108-generic #131~14.04.1-Ubuntu
Jan  8 23:00:15 201603-21231 kernel: [   24.202326] Hardware name: Dell Inc. Latitude 5414/0992HR, BIOS 1.0.0 05/04/2016
Jan  8 23:00:15 201603-21231 kernel: [   24.202349] task: ffff8801485f6900 ti: ffff880148200000 task.ti: ffff880148200000
Jan  8 23:00:15 201603-21231 kernel: [   24.202372] RIP: 0010:[<ffffffff811e217a>]  [<ffffffff811e217a>] kfree+0x14a/0x150
Jan  8 23:00:15 201603-21231 kernel: [   24.202398] RSP: 0018:ffff880148203d60  EFLAGS: 00010246
Jan  8 23:00:15 201603-21231 kernel: [   24.202415] RAX: ffffea0005370120 RBX: ffff88014dc04840 RCX: ffffea0005204820
Jan  8 23:00:15 201603-21231 kernel: [   24.202436] RDX: 000077ff80000000 RSI: ffffea0005204000 RDI: ffff88014dc04840
Jan  8 23:00:15 201603-21231 kernel: [   24.202457] RBP: ffff880148203d78 R08: 0000160000000000 R09: ffffea0005204000
Jan  8 23:00:15 201603-21231 kernel: [   24.202478] R10: 0000000000000001 R11: ffffea0005370100 R12: 0000000000000000
Jan  8 23:00:15 201603-21231 kernel: [   24.202499] R13: ffffffff8100eb19 R14: 0000000000000003 R15: 0000000000000000
Jan  8 23:00:15 201603-21231 kernel: [   24.202521] FS:  0000000000000000(0000) GS:ffff88014dd80000(0000) knlGS:0000000000000000
Jan  8 23:00:15 201603-21231 kernel: [   24.202545] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jan  8 23:00:15 201603-21231 kernel: [   24.202562] CR2: 00007f6fb630b0d0 CR3: 0000000002e0c000 CR4: 0000000000360670
Jan  8 23:00:15 201603-21231 kernel: [   24.202584] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jan  8 23:00:15 201603-21231 kernel: [   24.202606] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Jan  8 23:00:15 201603-21231 kernel: [   24.202627] Stack:
Jan  8 23:00:15 201603-21231 kernel: [   24.202634]  0000000000000000 0000000000000000 ffffffff81f3ed00 ffff880148203d88
Jan  8 23:00:15 201603-21231 kernel: [   24.202658]  ffffffff8100eb19 ffff880148203db0 ffffffff8100f9e3 0000000000000004
Jan  8 23:00:15 201603-21231 kernel: [   24.202683]  0000000000000186 0000000000000003 ffff880148203dd0 ffffffff81005cef
Jan  8 23:00:15 201603-21231 kernel: [   24.202707] Call Trace:
Jan  8 23:00:15 201603-21231 kernel: [   24.202718]  [<ffffffff8100eb19>] release_ds_buffer+0x39/0x40
Jan  8 23:00:15 201603-21231 kernel: [   24.202736]  [<ffffffff8100f9e3>] release_ds_buffers+0x73/0xb0
Jan  8 23:00:15 201603-21231 kernel: [   24.202756]  [<ffffffff81005cef>] x86_release_hardware+0x8f/0xa0
Jan  8 23:00:15 201603-21231 kernel: [   24.202780]  [<ffffffff81005d0e>] hw_perf_event_destroy+0xe/0x20
Jan  8 23:00:15 201603-21231 kernel: [   24.202800]  [<ffffffff81179594>] _free_event+0xb4/0x230
Jan  8 23:00:15 201603-21231 kernel: [   24.202817]  [<ffffffff811797d9>] put_event+0xc9/0x100
Jan  8 23:00:15 201603-21231 kernel: [   24.202839]  [<ffffffff81179819>] perf_event_release_kernel+0x9/0x10
Jan  8 23:00:15 201603-21231 kernel: [   24.202865]  [<ffffffff811348ce>] watchdog_nmi_disable+0x4e/0x70
Jan  8 23:00:15 201603-21231 kernel: [   24.202886]  [<ffffffff810a0d60>] ? sort_range+0x30/0x30
Jan  8 23:00:15 201603-21231 kernel: [   24.202903]  [<ffffffff8113493d>] watchdog_disable+0x4d/0x60
Jan  8 23:00:15 201603-21231 kernel: [   24.202921]  [<ffffffff810a0e52>] smpboot_thread_fn+0xf2/0x170
Jan  8 23:00:15 201603-21231 kernel: [   24.202940]  [<ffffffff8109d936>] kthread+0xd6/0xf0
Jan  8 23:00:15 201603-21231 kernel: [   24.202956]  [<ffffffff8109d860>] ? kthread_park+0x60/0x60
Jan  8 23:00:15 201603-21231 kernel: [   24.202974]  [<ffffffff818107cf>] ret_from_fork+0x3f/0x70
Jan  8 23:00:15 201603-21231 kernel: [   24.202991]  [<ffffffff8109d860>] ? kthread_park+0x60/0x60
Jan  8 23:00:15 201603-21231 kernel: [   24.203007] Code: 8b 03 31 f6 f6 c4 40 74 04 41 8b 73 6c 4c 89 df e8 cc c3 fa ff e9 73 ff ff ff 4c 8d 58 ff e9 20 ff ff ff 49 8b 43 20 a8 01 75 d4 <0f> 0b 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 
Jan  8 23:00:15 201603-21231 kernel: [   24.204034] RIP  [<ffffffff811e217a>] kfree+0x14a/0x150
Jan  8 23:00:15 201603-21231 kernel: [   24.204985]  RSP <ffff880148203d60>
Jan  8 23:00:15 201603-21231 kernel: [   24.209973] ---[ end trace 8503461eea4dc42f ]---
Jan  8 23:00:15 201603-21231 polkitd[1281]: started daemon version 0.105 using authority implementation `local' version `0.105'
Jan  8 23:00:15 201603-21231 dbus[857]: [system] Successfully activated service 'org.freedesktop.PolicyKit1'
Jan  8 23:00:15 201603-21231 NetworkManager[1272]:    SCPlugin-Ifupdown: init!
Jan  8 23:00:15 201603-21231 NetworkManager[1272]:    SCPlugin-Ifupdown: update_system_hostname
ubuntu@201603-21231:~$ uname -a
Linux 201603-21231 4.4.0-108-generic #131~14.04.1-Ubuntu SMP Sun Jan 7 15:54:10 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@201603-21231:~$

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Joseph Salisbury (jsalisbury) wrote on 2018-01-08:

#19

A test kernel with the fix I suggested in comment #17 us available. The test kernel can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1741934/

Can you test this kernel and see if it resolves this bug?

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Taihsiang Ho (tai271828) wrote on 2018-01-09:

#20

A quick test for comment #19 looks good. The test result for Dell Vostro 5468 (CID 201606-22340) looks good https://certification.canonical.com/hardware/201606-22340/submission/126230/

description:

updated

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GDR! (gdr.name) wrote on 2018-01-09:

#21

I can confirm that it boots now (hardware info in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1741869 )

dmesg | grep isolation

returns no results, though.

➜ ~ dmesg | grep isolation
➜ ~ uname -a
Linux gdr-desktop 4.4.0-104-generic #127~lp1741934 SMP Mon Jan 8 18:37:25 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

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Ian Gordon (ian-gordon) wrote on 2018-01-09:

#22

The kernel in #19 does not have the PTI patches.

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Joseph Salisbury (jsalisbury) wrote on 2018-01-09:

#23

@Ian Gordon is correct. I have another test kernel building now.

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Joseph Salisbury (jsalisbury) wrote on 2018-01-09:

#24

I copied the incorrect kernel up to people. The correct test kernel is now there:
http://kernel.ubuntu.com/~jsalisbury/lp1741934/

Can you test this kernel and see if it resolves this bug?

Revision history for this message

Launchpad Janitor (janitor) wrote on 2018-01-09:

#25

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in linux (Ubuntu Trusty):
status:	New → Confirmed

Joseph Salisbury (jsalisbury) on 2018-01-09

Changed in linux (Ubuntu Trusty):
status:	Confirmed → In Progress
importance:	Undecided → Critical
assignee:	nobody → Joseph Salisbury (jsalisbury)

Revision history for this message

Ian Gordon (ian-gordon) wrote on 2018-01-09:

#26

The kernel in #24 is working for me

Revision history for this message

Geoff Short (geoff-short) wrote on 2018-01-09:

#27

Tested 4.4.0-108.131 on PCs with the following motherboards:

Asus CS-B - failed to boot
Intel DQ77MK - failed to boot
Asus Q170M-C - booted OK

I'll retry with the kernel from #24 now.

Taihsiang Ho (tai271828) on 2018-01-09

description:

updated

Revision history for this message

Geoff Short (geoff-short) wrote on 2018-01-09:

#28

Tested 4.4.0-108.131~lp1741934 in a Ubuntu Xenial install on the following:

Intel DQ77MK - booted OK

Revision history for this message

Taihsiang Ho (tai271828) wrote on 2018-01-09:

#29

A very quick test for 4.4.0-108-generic #131~lp1741934 looks good. bootable and pass a regular desktop SRU cert test plan.

Tested on platform Dell Vostro 15-3568 (CID 201606-22528)

Test submissions:
https://certification.canonical.com/hardware/201606-22528/submission/126252/

Revision history for this message

Geoff Short (geoff-short) wrote on 2018-01-09:

#30

Tested 4.4.0-108.131~lp1741934 in a Ubuntu Xenial install on the following:

Asus CS-B - booted OK
Asus Q170M-C - booted OK

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2018-01-09:

#31

@GDR!, are you not able to boot at all when you hit the bug, or do you only see the trace in the log?

Joseph Salisbury (jsalisbury) on 2018-01-09

summary:	- Kernel panic with xenial 4.4 stack (4.4.0-108.131, Candidate kernels for - PTI fix) + Kernel trace with xenial 4.4 (4.4.0-108.131, Candidate kernels for PTI + fix)
description:	updated

Revision history for this message

GDR! (gdr.name) wrote on 2018-01-09:

#32

@jsalisbury I could not boot at all, i could only take a photo of the stack trace https://launchpadlibrarian.net/352927044/IMG_20180108_104845.jpg

Also it happened in the first second of kernel init.

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Taihsiang Ho (tai271828) wrote on 2018-01-09:

#33

3 more platforms complete to test 4.4.0-108-generic #131~lp1741934 . looks good.

https://certification.canonical.com/hardware/201606-22349/submission/126251/
https://certification.canonical.com/hardware/201606-22362/submission/126250/
https://certification.canonical.com/hardware/201606-22365/submission/126262/

Marcelo Cerri (mhcerri) on 2018-01-09

Changed in linux (Ubuntu Xenial):
status:	In Progress → Fix Committed

Joseph Salisbury (jsalisbury) on 2018-01-09

no longer affects:	linux (Ubuntu Trusty)
Changed in linux (Ubuntu):
status:	In Progress → Fix Committed

Revision history for this message

Leith Bade (ljbade) wrote on 2018-01-09:

#34

What exact package version do I need for this fix?

My system auto-updated to the buggy kernel and crashed in the same location as the original reporter.

For reference the system:
Motherboard: Asus P9D-I
BIOS: Version 1801
CPU: Intel(R) Xeon(R) CPU E3-1220 v3 @ 3.10GHz

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Leith Bade (ljbade) wrote on 2018-01-09:

#35

The buggy version I have:
linux-image-4.4.0-108-generic/xenial-security,now 4.4.0-108.131 amd64 [installed,automatic]

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Leith Bade (ljbade) wrote on 2018-01-10:

#36

@jsalisbury are you sure the fixed version has been uploaded? Still not getting any new kernel to replace the currently installed buggy one via apt update

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Joseph Salisbury (jsalisbury) wrote on 2018-01-10:

#37

@Leith, it will not be available in -updates until the status changes to "Fix Released". This should happen soon.

In the mean time you can install the kernel I posted in comment #24. You would need to install the linux-image and linux-image-extra .deb packages.

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Leith Bade (ljbade) wrote on 2018-01-10:

#38

Thank you @jsalisbury. Sorry for my misunderstanding with the status label.

I will keep an eye out for when the update arrives and I will just avoid rebooting the server until then.

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Launchpad Janitor (janitor) wrote on 2018-01-10:

#39

Download full text (3.3 KiB)

This bug was fixed in the package linux - 4.4.0-109.132

---------------
linux (4.4.0-109.132) xenial; urgency=low

* linux: 4.4.0-109.132 -proposed tracker (LP: #1742252)

  * Kernel trace with xenial 4.4 (4.4.0-108.131, Candidate kernels for PTI fix)
    (LP: #1741934)
    - SAUCE: kaiser: fix perf crashes - fix to original commit

linux (4.4.0-108.131) xenial; urgency=low

* linux: 4.4.0-108.131 -proposed tracker (LP: #1741727)

* CVE-2017-5754
- x86/mm: Disable PCID on 32-bit kernels

linux (4.4.0-107.130) xenial; urgency=low

* linux: 4.4.0-107.130 -proposed tracker (LP: #1741643)

  * CVE-2017-5754
    - Revert "UBUNTU: SAUCE: arch/x86/entry/vdso: temporarily disable vdso"
    - KPTI: Report when enabled
    - x86, vdso, pvclock: Simplify and speed up the vdso pvclock reader
    - x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap
    - x86/kasan: Clear kasan_zero_page after TLB flush
    - kaiser: Set _PAGE_NX only if supported

linux (4.4.0-106.129) xenial; urgency=low

* linux: 4.4.0-106.129 -proposed tracker (LP: #1741528)

  * CVE-2017-5754
    - KAISER: Kernel Address Isolation
    - kaiser: merged update
    - kaiser: do not set _PAGE_NX on pgd_none
    - kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE
    - kaiser: fix build and FIXME in alloc_ldt_struct()
    - kaiser: KAISER depends on SMP
    - kaiser: fix regs to do_nmi() ifndef CONFIG_KAISER
    - kaiser: fix perf crashes
    - kaiser: ENOMEM if kaiser_pagetable_walk() NULL
    - kaiser: tidied up asm/kaiser.h somewhat
    - kaiser: tidied up kaiser_add/remove_mapping slightly
    - kaiser: kaiser_remove_mapping() move along the pgd
    - kaiser: cleanups while trying for gold link
    - kaiser: name that 0x1000 KAISER_SHADOW_PGD_OFFSET
    - kaiser: delete KAISER_REAL_SWITCH option
    - kaiser: vmstat show NR_KAISERTABLE as nr_overhead
    - x86/mm: Enable CR4.PCIDE on supported systems
    - x86/mm: Build arch/x86/mm/tlb.c even on !SMP
    - x86/mm, sched/core: Uninline switch_mm()
    - x86/mm: Add INVPCID helpers
    - x86/mm: If INVPCID is available, use it to flush global mappings
    - kaiser: enhanced by kernel and user PCIDs
    - kaiser: load_new_mm_cr3() let SWITCH_USER_CR3 flush user
    - kaiser: PCID 0 for kernel and 128 for user
    - kaiser: x86_cr3_pcid_noflush and x86_cr3_pcid_user
    - kaiser: paranoid_entry pass cr3 need to paranoid_exit
    - kaiser: _pgd_alloc() without __GFP_REPEAT to avoid stalls
    - kaiser: fix unlikely error in alloc_ldt_struct()
    - kaiser: add "nokaiser" boot option, using ALTERNATIVE
    - x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling
    - x86/boot: Add early cmdline parsing for options with arguments
    - x86/kaiser: Check boottime cmdline params
    - kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush
    - kaiser: drop is_atomic arg to kaiser_pagetable_walk()
    - kaiser: asm/tlbflush.h handle noPGE at lower level
    - kaiser: kaiser_flush_tlb_on_return_to_user() check PCID
    - x86/paravirt: Dont patch flush_tlb_single
    - x86/kaiser: Reenable PARAVIRT
    - kaiser: disabled on Xen PV
    - x86/kaiser: Move feature detection up
    - kvm: x86: fix RSM when P...

This bug was fixed in the package linux - 4.4.0-109.132

---------------
linux (4.4.0-109.132) xenial; urgency=low

* linux: 4.4.0-109.132 -proposed tracker (LP: #1742252)

* Kernel trace with xenial 4.4  (4.4.0-108.131, Candidate kernels for PTI fix)
    (LP: #1741934)
    - SAUCE: kaiser: fix perf crashes - fix to original commit

linux (4.4.0-108.131) xenial; urgency=low

* linux: 4.4.0-108.131 -proposed tracker (LP: #1741727)

* CVE-2017-5754
    - x86/mm: Disable PCID on 32-bit kernels

linux (4.4.0-107.130) xenial; urgency=low

* linux: 4.4.0-107.130 -proposed tracker (LP: #1741643)

* CVE-2017-5754
    - Revert "UBUNTU: SAUCE: arch/x86/entry/vdso: temporarily disable vdso"
    - KPTI: Report when enabled
    - x86, vdso, pvclock: Simplify and speed up the vdso pvclock reader
    - x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap
    - x86/kasan: Clear kasan_zero_page after TLB flush
    - kaiser: Set _PAGE_NX only if supported

linux (4.4.0-106.129) xenial; urgency=low

* linux: 4.4.0-106.129 -proposed tracker (LP: #1741528)

* CVE-2017-5754
    - KAISER: Kernel Address Isolation
    - kaiser: merged update
    - kaiser: do not set _PAGE_NX on pgd_none
    - kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE
    - kaiser: fix build and FIXME in alloc_ldt_struct()
    - kaiser: KAISER depends on SMP
    - kaiser: fix regs to do_nmi() ifndef CONFIG_KAISER
    - kaiser: fix perf crashes
    - kaiser: ENOMEM if kaiser_pagetable_walk() NULL
    - kaiser: tidied up asm/kaiser.h somewhat
    - kaiser: tidied up kaiser_add/remove_mapping slightly
    - kaiser: kaiser_remove_mapping() move along the pgd
    - kaiser: cleanups while trying for gold link
    - kaiser: name that 0x1000 KAISER_SHADOW_PGD_OFFSET
    - kaiser: delete KAISER_REAL_SWITCH option
    - kaiser: vmstat show NR_KAISERTABLE as nr_overhead
    - x86/mm: Enable CR4.PCIDE on supported systems
    - x86/mm: Build arch/x86/mm/tlb.c even on !SMP
    - x86/mm, sched/core: Uninline switch_mm()
    - x86/mm: Add INVPCID helpers
    - x86/mm: If INVPCID is available, use it to flush global mappings
    - kaiser: enhanced by kernel and user PCIDs
    - kaiser: load_new_mm_cr3() let SWITCH_USER_CR3 flush user
    - kaiser: PCID 0 for kernel and 128 for user
    - kaiser: x86_cr3_pcid_noflush and x86_cr3_pcid_user
    - kaiser: paranoid_entry pass cr3 need to paranoid_exit
    - kaiser: _pgd_alloc() without __GFP_REPEAT to avoid stalls
    - kaiser: fix unlikely error in alloc_ldt_struct()
    - kaiser: add "nokaiser" boot option, using ALTERNATIVE
    - x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling
    - x86/boot: Add early cmdline parsing for options with arguments
    - x86/kaiser: Check boottime cmdline params
    - kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush
    - kaiser: drop is_atomic arg to kaiser_pagetable_walk()
    - kaiser: asm/tlbflush.h handle noPGE at lower level
    - kaiser: kaiser_flush_tlb_on_return_to_user() check PCID
    - x86/paravirt: Dont patch flush_tlb_single
    - x86/kaiser: Reenable PARAVIRT
    - kaiser: disabled on Xen PV
    - x86/kaiser: Move feature detection up
    - kvm: x86: fix RSM when PCID is non-zero
    - SAUCE: arch/x86/entry/vdso: temporarily disable vdso
    - [Config]: CONFIG_KAISER=y

-- Marcelo Henrique Cerri <marcelo.cerri@canonical.com>  Tue, 09 Jan 2018 15:56:26 -0200

Changed in linux (Ubuntu Xenial):
status:	Fix Committed → Fix Released
status:	Fix Committed → Fix Released

Revision history for this message

P Gopal Krishnan (panthiyil) wrote on 2018-01-10:

#41

Hi, I am not an expert and have basic functional operating knowledge of Ubuntu. I am using a Dell Latitude 5480 and Ubuntu 16.04 LTS. I did a software update this morning and since then I am unable to shut down and get the error starting with -

kernel BUG at /build/linux-J4_1pC/linux-4.4.0/mm/slub.c:3627!

Is there a fix that you can suggest which I can run? Thanks

Revision history for this message

Daniil Kirsanov (dankirsdot) wrote on 2018-01-10:

#42

You should add this ppa
sudo add-apt-repository ppa:canonical-kernel-team/pti
and run:
sudo apt-get dist-upgrade
to install package linux - 4.4.0-109.132

Revision history for this message

Raulo (raulo-olapodrido) wrote on 2018-01-10:

#43

when will this be in the main repositories?

Revision history for this message

Cima (andrea-cimatoribus) wrote on 2018-01-10:

#44

It's already in the main repositories, and I can confirm it fixes the issue on my machine.

Revision history for this message

Norbert (nrbrtx) wrote on 2018-01-10:

#45

With latest 4.4.0-108-generic

1. My laptop with i7-3537U CPU
  microcode : 0x1c;
  kaiser in CPU flags;
  dmesg "[ 0.000000] Kernel/User page tables isolation: enabled"

* does not shutdown with

kernel BUG at /build/linux-J4_1pC/linux-4.4.0/mm/slub.c:3627!

* does not reboot
* does not suspend.

2. My i7-4790 machine
  microcode : 0x17;
  kaiser in CPU flags;
  dmesg "[ 0.000000] Kernel/User page tables isolation: enabled"

* does not shutdown (can't see any messages here).
* does not reboot
* does not suspend

3. My i7 Q740 laptop

  microcode : 0x7;
  kaiser in CPU flags;
  dmesg "[ 0.000000] Kernel/User page tables isolation: enabled"

* does not suspend

Revision history for this message

Norbert (nrbrtx) wrote on 2018-01-10:

#46

With latest 4.4.0-109-generic
1. My laptop with i7-3537U CPU - works normally.
2. My i7-4790 machine - works normally.
3. My i7 Q740 laptop - works normally.

For those who affected:
1. Remove 108 kernel with
sudo apt-get purge linux-headers-4.4.0-108 linux-headers-4.4.0-108-generic linux-image-4.4.0-108-generic linux-image-extra-4.4.0-108-generic linux-tools-4.4.0-108 linux-tools-4.4.0-108-generic
sudo apt-get autoremove
2. Wait for 109 kernel to appear on your mirror or temporarily switch to "Main server" (http://archive.ubuntu.com/ubuntu) and get it from here.

Revision history for this message

Tomas Pospisek (tpo999) wrote on 2018-01-10:

#47

Same here:

# lspci
00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:02.0 Display controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-LM (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Q87 Express LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 210] (rev a2)
01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)

I had default the nouveau driver driving the nvidia card. Seems there were some problems with the Nvidia driver: https://www.reddit.com/r/linuxquestions/comments/7pbro7/ubuntu_meltdown_patch_breaks_system_wont_boot/

However 4.4.0-109-generic fixed this.

Thanks a lot to Ubuntu for their quick fix and to Norbert for letting us know here.

Joseph Salisbury (jsalisbury) on 2018-01-10

Changed in linux (Ubuntu):
status:	Fix Committed → Fix Released

Revision history for this message

P Gopal Krishnan (panthiyil) wrote on 2018-01-10:

#49

Thanks, Norbert. Seems to have worked for me.

Revision history for this message

Norbert (nrbrtx) wrote on 2018-01-10:

#50

Installation of 4.4.0-109-generic fixes all problems:

sudo apt-get update
sudo apt-get install linux-headers-4.4.0-109 linux-headers-4.4.0-109-generic \
linux-headers-generic linux-image-4.4.0-109-generic \
linux-image-extra-4.4.0-109-generic linux-image-generic \
linux-tools-4.4.0-109 linux-tools-4.4.0-109-generic linux-tools-generic

Revision history for this message

Eduardo Eloy Irgang (irgangs) wrote on 2018-01-10:

#51

Thanks, kernel 4.4.0-109-generic fixed this problem!

Revision history for this message

Simon Déziel (sdeziel) wrote on 2018-01-10:

#52

I can confirm that 4.4.0-109.132 fix the problem for me (LP: #1742286) on Xenial. Thanks

Revision history for this message

David Glasser (glasser) wrote on 2018-01-10:

#53

Does anyone know if this issue affects linux-aws, which was not mentioned in the USN?

Revision history for this message

Marc (marc-preuss) wrote on 2018-01-10:

#54

Thanks, kernel 4.4.0-109 fixed the issue for me too.

Revision history for this message

Nazar (nazartsyhanyuk) wrote on 2018-01-10:

#55

Sorry, can anyone provide some instructions how to upgrade if I can't load system?

Revision history for this message

Simon Déziel (sdeziel) wrote on 2018-01-10: Re: [Bug 1741934] Re: Kernel trace with xenial 4.4 (4.4.0-108.131, Candidate kernels for PTI fix)

#56

You can try to boot the last working kernel and then pull the updates
and reboot.

Revision history for this message

peterzay (peterzay) wrote on 2018-01-10:

#57

Good work team. kernel 4.4.0-109-generic fixed the problem on this Dell Inspiron 660 Intel 3rd gen Core i5-3330 3.0GHz 8 MB RAM. Did not notice any slowdown of the PC.

Joseph Salisbury (jsalisbury) on 2018-01-10

tags:

added: pti

Joseph Salisbury (jsalisbury) on 2018-01-10

description:

updated

Revision history for this message

Zaphod BIII (maheinmuc) wrote on 2018-01-10:

#58

Kernel 4.4.0-109-generic fixed the problem on
Dell Inc. OptiPlex 990/06D7TR, BIOS A13 04/02/2012
Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz
CPU0: Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz (family: 0x6, model: 0x2a, stepping: 0x7)
Ubuntu 16.04.3 LTS

Revision history for this message

Guilherme Ferrari (gpferrari) wrote on 2018-01-10:

#59

Kernel 4.4.0-10--generic fixed the problem also on Dell Inspiron i5-5000 Processor Intel i7-7500U 2.7Ghz 8 Mb RAM.

Thank you very much for the quick response.

Revision history for this message

Marat Khalili (mkh-t) wrote on 2018-01-11:

#60

On 14.04 with LTS Enablement Stack I can confirm that 4.4.0-108 was broken in the described way (trap on kfree) and 4.4.0-109 works.

Revision history for this message

Saumya Kanta Swain (saumyakswain) wrote on 2018-01-11:

#61

4.4.0-109 works.

Revision history for this message

Júlio (contato-julio) wrote on 2018-01-11:

#62

Download full text (20.1 KiB)

Still affect me on 4.4.0-109 update

pc-ubuntu
    descrição: Computador desktop
    produto: OptiPlex 9010 (OptiPlex 9010)
    fabricante: Dell Inc.
    versão: 01
    serial: GMLV5W1
    largura: 64 bits
    capacidades: smbios-2.7 dmi-2.7 vsyscall32
    configuração: boot=normal chassis=desktop sku=OptiPlex 9010 uuid=44454C4C-4D00-104C-8056-C7C04F355731
  *-core
       descrição: Placa-mãe
       produto: 0KV62T
       fabricante: Dell Inc.
       ID físico: 0
       versão: A01
       serial: /GMLV5W1/BR108192BM00CS/
     *-firmware
          descrição: BIOS
          fabricante: Dell Inc.
          ID físico: 0
          versão: A21
          date: 09/21/2015
          tamanho: 64KiB
          capacidade: 11MiB
          capacidades: pci pnp upgrade shadowing cdboot bootselect edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification netboot uefi
     *-cpu
          descrição: CPU
          produto: Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
          fabricante: Intel Corp.
          ID físico: 5e
          informações do barramento: cpu@0
          versão: Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
          slot: CPU 1
          tamanho: 1883MHz
          capacidade: 3800MHz
          largura: 64 bits
          clock: 100MHz
          capacidades: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm epb tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms xsaveopt dtherm ida arat pln pts cpufreq
          configuração: cores=4 enabledcores=4 threads=4
        *-cache:0
             descrição: L1 cache
             ID físico: 3a
             slot: CPU Internal L1
             tamanho: 256KiB
             capacidade: 256KiB
             capacidades: internal write-through data
             configuração: level=1
        *-cache:1
             descrição: L2 cache
             ID físico: 3b
             slot: CPU Internal L2
             tamanho: 1MiB
             capacidade: 1MiB
             capacidades: internal write-through unified
             configuração: level=2
        *-cache:2
             descrição: L3 cache
             ID físico: 3c
             slot: CPU Internal L3
             tamanho: 6MiB
             capacidade: 6MiB
             capacidades: internal write-back unified
             configuração: level=3
     *-memory
          descrição: Memória do sistema
          ID físico: 3d
          slot: Placa do sistema ou placa-mãe
          tamanho: 8GiB
        *-bank:0
             descrição: DIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>POT-Creation-Date: 2009-10-08 14:02+0200PO-Revision-Date: 2013-04-07 17:30+0000Last-Translator: Neliton Pereira Jr. <email address hidden>Language-Team: Brazilian Portuguese <email address hidden>MIME-Version: 1.0Content-Type: text/plain; c...

Still affect me on 4.4.0-109 update

pc-ubuntu
    descrição: Computador desktop
    produto: OptiPlex 9010 (OptiPlex 9010)
    fabricante: Dell Inc.
    versão: 01
    serial: GMLV5W1
    largura: 64 bits
    capacidades: smbios-2.7 dmi-2.7 vsyscall32
    configuração: boot=normal chassis=desktop sku=OptiPlex 9010 uuid=44454C4C-4D00-104C-8056-C7C04F355731
  *-core
       descrição: Placa-mãe
       produto: 0KV62T
       fabricante: Dell Inc.
       ID físico: 0
       versão: A01
       serial: /GMLV5W1/BR108192BM00CS/
     *-firmware
          descrição: BIOS
          fabricante: Dell Inc.
          ID físico: 0
          versão: A21
          date: 09/21/2015
          tamanho: 64KiB
          capacidade: 11MiB
          capacidades: pci pnp upgrade shadowing cdboot bootselect edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification netboot uefi
     *-cpu
          descrição: CPU
          produto: Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
          fabricante: Intel Corp.
          ID físico: 5e
          informações do barramento: cpu@0
          versão: Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
          slot: CPU 1
          tamanho: 1883MHz
          capacidade: 3800MHz
          largura: 64 bits
          clock: 100MHz
          capacidades: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm epb tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms xsaveopt dtherm ida arat pln pts cpufreq
          configuração: cores=4 enabledcores=4 threads=4
        *-cache:0
             descrição: L1 cache
             ID físico: 3a
             slot: CPU Internal L1
             tamanho: 256KiB
             capacidade: 256KiB
             capacidades: internal write-through data
             configuração: level=1
        *-cache:1
             descrição: L2 cache
             ID físico: 3b
             slot: CPU Internal L2
             tamanho: 1MiB
             capacidade: 1MiB
             capacidades: internal write-through unified
             configuração: level=2
        *-cache:2
             descrição: L3 cache
             ID físico: 3c
             slot: CPU Internal L3
             tamanho: 6MiB
             capacidade: 6MiB
             capacidades: internal write-back unified
             configuração: level=3
     *-memory
          descrição: Memória do sistema
          ID físico: 3d
          slot: Placa do sistema ou placa-mãe
          tamanho: 8GiB
        *-bank:0
             descrição: DIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>POT-Creation-Date: 2009-10-08 14:02+0200PO-Revision-Date: 2013-04-07 17:30+0000Last-Translator: Neliton Pereira Jr. <nelitonpjr@gmail.com>Language-Team: Brazilian Portuguese <pt_BR@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2016-06-27 17:08+0000X-Generator: Launchpad (build 18115) [vazio]
             produto: [Empty]
             fabricante: [Empty]
             ID físico: 0
             serial: [Empty]
             slot: DIMM3
        *-bank:1
             descrição: DIMM DDR3 Síncrono 1600 MHz (0,6 ns)
             produto: CMV8GX3M1A1600C11
             fabricante: AMI
             ID físico: 1
             serial: 00000000
             slot: DIMM1
             tamanho: 8GiB
             largura: 64 bits
             clock: 1600MHz (0.6ns)
        *-bank:2
             descrição: DIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>POT-Creation-Date: 2009-10-08 14:02+0200PO-Revision-Date: 2013-04-07 17:30+0000Last-Translator: Neliton Pereira Jr. <nelitonpjr@gmail.com>Language-Team: Brazilian Portuguese <pt_BR@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2016-06-27 17:08+0000X-Generator: Launchpad (build 18115) [vazio]
             produto: [Empty]
             fabricante: [Empty]
             ID físico: 2
             serial: [Empty]
             slot: DIMM4
        *-bank:3
             descrição: DIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>POT-Creation-Date: 2009-10-08 14:02+0200PO-Revision-Date: 2013-04-07 17:30+0000Last-Translator: Neliton Pereira Jr. <nelitonpjr@gmail.com>Language-Team: Brazilian Portuguese <pt_BR@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2016-06-27 17:08+0000X-Generator: Launchpad (build 18115) [vazio]
             produto: [Empty]
             fabricante: [Empty]
             ID físico: 3
             serial: [Empty]
             slot: DIMM2
     *-pci
          descrição: Host bridge
          produto: Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller
          fabricante: Intel Corporation
          ID físico: 100
          informações do barramento: pci@0000:00:00.0
          versão: 09
          largura: 32 bits
          clock: 33MHz
          configuração: driver=ivb_uncore
          recursos: irq:0
        *-display
             descrição: VGA compatible controller
             produto: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
             fabricante: Intel Corporation
             ID físico: 2
             informações do barramento: pci@0000:00:02.0
             versão: 09
             largura: 64 bits
             clock: 33MHz
             capacidades: msi pm vga_controller bus_master cap_list rom
             configuração: driver=i915 latency=0
             recursos: irq:29 memória:f7800000-f7bfffff memória:e0000000-efffffff porta de E/S:f000(tamanho=64)
        *-usb:0
             descrição: USB controller
             produto: 7 Series/C210 Series Chipset Family USB xHCI Host Controller
             fabricante: Intel Corporation
             ID físico: 14
             informações do barramento: pci@0000:00:14.0
             versão: 04
             largura: 64 bits
             clock: 33MHz
             capacidades: pm msi xhci bus_master cap_list
             configuração: driver=xhci_hcd latency=0
             recursos: irq:26 memória:f7d20000-f7d2ffff
           *-usbhost:0
                produto: xHCI Host Controller
                fabricante: Linux 4.4.0-104-generic xhci-hcd
                ID físico: 0
                informações do barramento: usb@4
                nome lógico: usb4
                versão: 4.04
                capacidades: usb-3.00
                configuração: driver=hub slots=4 speed=5000Mbit/s
           *-usbhost:1
                produto: xHCI Host Controller
                fabricante: Linux 4.4.0-104-generic xhci-hcd
                ID físico: 1
                informações do barramento: usb@3
                nome lógico: usb3
                versão: 4.04
                capacidades: usb-2.00
                configuração: driver=hub slots=4 speed=480Mbit/s
              *-usb:0
                   descrição: Modem
                   produto: SAMSUNG_Android
                   fabricante: SAMSUNG
                   ID físico: 2
                   informações do barramento: usb@3:2
                   versão: 4.00
                   serial: 4200d1c9039f2395
                   capacidades: usb-2.00 atcommands
                   configuração: driver=cdc_acm maxpower=96mA speed=480Mbit/s
              *-usb:1
                   descrição: Mouse
                   produto: USB Optical Mouse
                   fabricante: Logitech
                   ID físico: 4
                   informações do barramento: usb@3:4
                   versão: 72.00
                   capacidades: usb-2.00
                   configuração: driver=usbhid maxpower=100mA speed=1Mbit/s
        *-communication
             descrição: Communication controller
             produto: 7 Series/C210 Series Chipset Family MEI Controller #1
             fabricante: Intel Corporation
             ID físico: 16
             informações do barramento: pci@0000:00:16.0
             versão: 04
             largura: 64 bits
             clock: 33MHz
             capacidades: pm msi bus_master cap_list
             configuração: driver=mei_me latency=0
             recursos: irq:30 memória:f7d3c000-f7d3c00f
        *-network
             descrição: Ethernet interface
             produto: 82579LM Gigabit Network Connection
             fabricante: Intel Corporation
             ID físico: 19
             informações do barramento: pci@0000:00:19.0
             nome lógico: eno1
             versão: 04
             serial: 78:2b:cb:be:eb:c9
             capacidade: 1Gbit/s
             largura: 32 bits
             clock: 33MHz
             capacidades: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
             configuração: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.13-4 latency=0 link=no multicast=yes port=twisted pair
             recursos: irq:28 memória:f7d00000-f7d1ffff memória:f7d39000-f7d39fff porta de E/S:f080(tamanho=32)
        *-usb:1
             descrição: USB controller
             produto: 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2
             fabricante: Intel Corporation
             ID físico: 1a
             informações do barramento: pci@0000:00:1a.0
             versão: 04
             largura: 32 bits
             clock: 33MHz
             capacidades: pm debug ehci bus_master cap_list
             configuração: driver=ehci-pci latency=0
             recursos: irq:16 memória:f7d38000-f7d383ff
           *-usbhost
                produto: EHCI Host Controller
                fabricante: Linux 4.4.0-104-generic ehci_hcd
                ID físico: 1
                informações do barramento: usb@1
                nome lógico: usb1
                versão: 4.04
                capacidades: usb-2.00
                configuração: driver=hub slots=2 speed=480Mbit/s
              *-usb
                   descrição: hub USB
                   produto: Integrated Rate Matching Hub
                   fabricante: Intel Corp.
                   ID físico: 1
                   informações do barramento: usb@1:1
                   versão: 0.00
                   capacidades: usb-2.00
                   configuração: driver=hub slots=6 speed=480Mbit/s
        *-multimedia
             descrição: Audio device
             produto: 7 Series/C210 Series Chipset Family High Definition Audio Controller
             fabricante: Intel Corporation
             ID físico: 1b
             informações do barramento: pci@0000:00:1b.0
             versão: 04
             largura: 64 bits
             clock: 33MHz
             capacidades: pm msi pciexpress bus_master cap_list
             configuração: driver=snd_hda_intel latency=0
             recursos: irq:31 memória:f7d30000-f7d33fff
        *-pci:0
             descrição: PCI bridge
             produto: 7 Series/C210 Series Chipset Family PCI Express Root Port 1
             fabricante: Intel Corporation
             ID físico: 1c
             informações do barramento: pci@0000:00:1c.0
             versão: c4
             largura: 32 bits
             clock: 33MHz
             capacidades: pci pciexpress msi pm normal_decode bus_master cap_list
             configuração: driver=pcieport
             recursos: irq:16
        *-pci:1
             descrição: PCI bridge
             produto: 7 Series/C210 Series Chipset Family PCI Express Root Port 3
             fabricante: Intel Corporation
             ID físico: 1c.2
             informações do barramento: pci@0000:00:1c.2
             versão: c4
             largura: 32 bits
             clock: 33MHz
             capacidades: pci pciexpress msi pm normal_decode bus_master cap_list
             configuração: driver=pcieport
             recursos: irq:18 porta de E/S:e000(tamanho=4096) memória:f7c00000-f7cfffff
           *-network
                descrição: Interface sem fio
                produto: RTL8192CE PCIe Wireless Network Adapter
                fabricante: Realtek Semiconductor Co., Ltd.
                ID físico: 0
                informações do barramento: pci@0000:02:00.0
                nome lógico: wlp2s0
                versão: 01
                serial: 30:85:a9:38:95:63
                largura: 64 bits
                clock: 33MHz
                capacidades: pm msi pciexpress bus_master cap_list ethernet physical wireless
                configuração: broadcast=yes driver=rtl8192ce driverversion=4.4.0-104-generic firmware=N/A ip=192.168.1.107 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
                recursos: irq:18 porta de E/S:e000(tamanho=256) memória:f7c00000-f7c03fff
        *-usb:2
             descrição: USB controller
             produto: 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1
             fabricante: Intel Corporation
             ID físico: 1d
             informações do barramento: pci@0000:00:1d.0
             versão: 04
             largura: 32 bits
             clock: 33MHz
             capacidades: pm debug ehci bus_master cap_list
             configuração: driver=ehci-pci latency=0
             recursos: irq:23 memória:f7d37000-f7d373ff
           *-usbhost
                produto: EHCI Host Controller
                fabricante: Linux 4.4.0-104-generic ehci_hcd
                ID físico: 1
                informações do barramento: usb@2
                nome lógico: usb2
                versão: 4.04
                capacidades: usb-2.00
                configuração: driver=hub slots=2 speed=480Mbit/s
              *-usb
                   descrição: hub USB
                   produto: Integrated Rate Matching Hub
                   fabricante: Intel Corp.
                   ID físico: 1
                   informações do barramento: usb@2:1
                   versão: 0.00
                   capacidades: usb-2.00
                   configuração: driver=hub slots=8 speed=480Mbit/s
        *-pci:2
             descrição: PCI bridge
             produto: 82801 PCI Bridge
             fabricante: Intel Corporation
             ID físico: 1e
             informações do barramento: pci@0000:00:1e.0
             versão: a4
             largura: 32 bits
             clock: 33MHz
             capacidades: pci subtractive_decode bus_master cap_list
        *-isa
             descrição: ISA bridge
             produto: Q77 Express Chipset LPC Controller
             fabricante: Intel Corporation
             ID físico: 1f
             informações do barramento: pci@0000:00:1f.0
             versão: 04
             largura: 32 bits
             clock: 33MHz
             capacidades: isa bus_master cap_list
             configuração: driver=lpc_ich latency=0
             recursos: irq:0
        *-storage
             descrição: RAID bus controller
             produto: SATA Controller [RAID mode]
             fabricante: Intel Corporation
             ID físico: 1f.2
             informações do barramento: pci@0000:00:1f.2
             versão: 04
             largura: 32 bits
             clock: 66MHz
             capacidades: storage msi pm bus_master cap_list
             configuração: driver=ahci latency=0
             recursos: irq:27 porta de E/S:f0d0(tamanho=8) porta de E/S:f0c0(tamanho=4) porta de E/S:f0b0(tamanho=8) porta de E/S:f0a0(tamanho=4) porta de E/S:f060(tamanho=32) memória:f7d36000-f7d367ff
        *-serial DISPONÍVEL
             descrição: SMBus
             produto: 7 Series/C210 Series Chipset Family SMBus Controller
             fabricante: Intel Corporation
             ID físico: 1f.3
             informações do barramento: pci@0000:00:1f.3
             versão: 04
             largura: 64 bits
             clock: 33MHz
             configuração: latency=0
             recursos: memória:f7d35000-f7d350ff porta de E/S:f040(tamanho=32)
     *-scsi:0
          ID físico: 1
          nome lógico: scsi1
          capacidades: emulated
        *-cdrom
             descrição: DVD-RAM writer
             produto: DVD+-RW GHA2N
             fabricante: HL-DT-ST
             ID físico: 0.0.0
             informações do barramento: scsi@1:0.0.0
             nome lógico: /dev/cdrom
             nome lógico: /dev/cdrw
             nome lógico: /dev/dvd
             nome lógico: /dev/dvdrw
             nome lógico: /dev/sr0
             versão: A103
             capacidades: removable audio cd-r cd-rw dvd dvd-r dvd-ram
             configuração: ansiversion=5 status=nodisc
     *-scsi:1
          ID físico: 2
          nome lógico: scsi2
          capacidades: emulated
        *-disk
             descrição: ATA Disk
             produto: ST1000DM003-1ER1
             fabricante: Seagate
             ID físico: 0.0.0
             informações do barramento: scsi@2:0.0.0
             nome lógico: /dev/sda
             versão: CC45
             serial: S4Y3KHME
             tamanho: 931GiB (1TB)
             capacidades: gpt-1.00 partitioned partitioned:gpt
             configuração: ansiversion=5 guid=7a8c5def-29da-48f4-9f19-ace1e521d090 logicalsectorsize=512 sectorsize=4096
           *-volume:0 DISPONÍVEL
                descrição: Windows FAT volume
                fabricante: mkfs.fat
                ID físico: 1
                informações do barramento: scsi@2:0.0.0,1
                versão: FAT32
                serial: 35c1-7be6
                tamanho: 510MiB
                capacidade: 511MiB
                capacidades: boot fat initialized
                configuração: FATs=2 filesystem=fat name=EFI System Partition
           *-volume:1
                descrição: volume EXT4
                fabricante: Linux
                ID físico: 2
                informações do barramento: scsi@2:0.0.0,2
                nome lógico: /dev/sda2
                nome lógico: /
                versão: 1.0
                serial: 0cfd901a-2d6c-42e6-8da4-185607210a3d
                tamanho: 923GiB
                capacidades: journaled extended_attributes large_files huge_files dir_nlink recover extents ext4 ext2 initialized
                configuração: created=2017-03-06 16:07:08 filesystem=ext4 lastmountpoint=/ modified=2018-01-11 08:38:51 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered mounted=2018-01-11 08:38:57 state=mounted
           *-volume:2
                descrição: Linux swap volume
                fabricante: Linux
                ID físico: 3
                informações do barramento: scsi@2:0.0.0,3
                nome lógico: /dev/sda3
                versão: 1
                serial: d873b11a-d9f8-4b94-a172-d00ab1b3fc66
                tamanho: 8076MiB
                capacidade: 8077MiB
                capacidades: nofs swap initialized
                configuração: filesystem=swap pagesize=4095
  *-network:0
       descrição: Ethernet interface
       ID físico: 1
       nome lógico: wlp2s0.0
       serial: 30:85:a9:38:95:63
       capacidades: ethernet physical
       configuração: broadcast=yes driver=802.1Q VLAN Support driverversion=1.8 firmware=N/A link=yes multicast=yes
  *-network:1 DESABILITADO
       descrição: Ethernet interface
       ID físico: 2
       nome lógico: bond0
       serial: 7a:b6:f3:a9:42:26
       capacidades: ethernet physical
       configuração: autonegotiation=off broadcast=yes driver=bonding driverversion=3.7.1 firmware=2 link=no master=yes multicast=yes
  *-network:2 DESABILITADO
       descrição: Ethernet interface
       ID físico: 3
       nome lógico: virbr0-nic
       serial: 52:54:00:bb:36:70
       tamanho: 10Mbit/s
       capacidades: ethernet physical
       configuração: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full link=no multicast=yes port=twisted pair speed=10Mbit/s
  *-network:3
       descrição: Ethernet interface
       ID físico: 4
       nome lógico: eno1.0
       serial: 78:2b:cb:be:eb:c9
       capacidade: 1Gbit/s
       capacidades: ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuração: autonegotiation=on broadcast=yes driver=802.1Q VLAN Support driverversion=1.8 firmware=N/A link=no multicast=yes port=twisted pair

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2018-01-11:

#63

@Julio, Can you open a new bug report, so we can investigate your issue further?

Revision history for this message

Norbert (nrbrtx) wrote on 2018-01-11:

#64

Please take care on bug 1742509 (it is about disabling security.ubuntu.com on switching mirror with software-properties-gtk). It is very actual in context of current bug.

Jürg Häfliger (juergh) on 2025-04-18

tags:

added: kernel-daily-bug

Ubuntu
linux package

Kernel trace with xenial 4.4 (4.4.0-108.131, Candidate kernels for PTI fix)

Bug Description

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Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Fix Released	Critical	Unassigned
	Xenial	Fix Released	Critical	Unassigned

Ubuntulinux package

Kernel trace with xenial 4.4 (4.4.0-108.131, Candidate kernels for PTI fix)

Bug Description

CVE References

Duplicates of this bug

Other bug subscribers

Bug attachments

Remote bug watches

Ubuntu
linux package