Some HP machines do not work with the alx driver

[James M. Leddy]

Using the new alx module in 3.5.0-24.37, some HP systems have the problem that the transmit queue times out:

Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846931] ------------[ cut here ]------------
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846940] WARNING: at /build/buildd/linux-lts-quantal-3.5.0/net/sched/sch_generic.c:255 dev_watchdog+0x272/0x280()
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846942] Hardware name:
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846943] NETDEV WATCHDOG: eth0 (alx): transmit queue 2 timed out
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846945] Modules linked in: nls_iso8859_1 rfcomm bnep parport_pc ppdev dm_multipath scsi_dh arc4 joydev ath9k mac80211 snd_hda_codec_idt(O) snd_hda_intel(O) snd_hda_codec(O) ath9k_common kvm_amd kvm ath9k_hw snd_hwdep snd_pcm btusb ath snd_seq_midi snd_rawmidi alx snd_seq_midi_event ghash_clmulni_intel bluetooth snd_seq cfg80211 snd_timer snd_seq_device snd aesni_intel cryptd mdio aes_x86_64 psmouse soundcore snd_page_alloc serio_raw microcode mac_hid i2c_piix4 k10temp lp parport binfmt_misc dm_raid45 xor dm_mirror dm_region_hash dm_log btrfs zlib_deflate libcrc32c vesafb usb_storage hid_generic usbhid hid wmi
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846979] Pid: 0, comm: swapper/3 Tainted: G O 3.5.0-24-generic #37~precise1-Ubuntu
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846981] Call Trace:
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846983] <IRQ> [<ffffffff81052c6f>] warn_slowpath_common+0x7f/0xc0
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846989] [<ffffffff81052d66>] warn_slowpath_fmt+0x46/0x50
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846992] [<ffffffff815a0eb2>] dev_watchdog+0x272/0x280
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846996] [<ffffffff8101be03>] ? native_sched_clock+0x13/0x80
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.846998] [<ffffffff815a0c40>] ? pfifo_fast_dequeue+0xe0/0xe0
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847000] [<ffffffff815a0c40>] ? pfifo_fast_dequeue+0xe0/0xe0
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847003] [<ffffffff81062c86>] call_timer_fn+0x46/0x160
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847005] [<ffffffff815a0c40>] ? pfifo_fast_dequeue+0xe0/0xe0
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847007] [<ffffffff810645d2>] run_timer_softirq+0x132/0x2a0
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847010] [<ffffffff810a40a5>] ? ktime_get+0x65/0xe0
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847013] [<ffffffff8105ba28>] __do_softirq+0xa8/0x210
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847015] [<ffffffff810ab204>] ? tick_program_event+0x24/0x30
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847018] [<ffffffff816a8e1c>] call_softirq+0x1c/0x30
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847021] [<ffffffff81016245>] do_softirq+0x65/0xa0
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847023] [<ffffffff8105be0e>] irq_exit+0x8e/0xb0
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847025] [<ffffffff816a975e>] smp_apic_timer_interrupt+0x6e/0x99
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847028] [<ffffffff816a84ca>] apic_timer_interrupt+0x6a/0x70
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847029] <EOI> [<ffffffff8103ff56>] ? native_safe_halt+0x6/0x10
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847034] [<ffffffff8101c993>] default_idle+0x53/0x1f0
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847036] [<ffffffff8101d8a9>] cpu_idle+0xd9/0x120
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847039] [<ffffffff8167bc07>] start_secondary+0xc3/0xc5
Feb 19 06:54:40 ubuntu-desktop kernel: [ 20.847041] ---[ end trace 24ab339038e093ee ]---

I'll include the full kernel log as an attachment

[James M. Leddy (jm-leddy)]

linux-backports-modules-cw-3.6-3.5.0-24-generic does work with this hardware

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1130503

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.