For me this actually manages to trigger an oops after a zillion
VFS: busy inodes on changed media or resized disk sr1
This is on 2.6.38-10-generic #44-Ubuntu SMP and also on a different machine (with the same USB stick) on a 3.0rc3 kernel I built with a similar backtrace.
For me this actually manages to trigger an oops after a zillion
VFS: busy inodes on changed media or resized disk sr1
This is on 2.6.38-10-generic #44-Ubuntu SMP and also on a different machine (with the same USB stick) on a 3.0rc3 kernel I built with a similar backtrace.
[17175.349990] BUG: unable to handle kernel NULL pointer dereference at 0000000000000002 5c2>] init_groups+ 0x2/0xa0 pci0000: 00/0000: 00:1a.0/ usb1/1- 1/1-1.4/ 1-1.4:1. 0/bInterfaceSub Class ffffffff81a255c 2>] [<ffffffff81a25 5c2>] init_groups+ 0x2/0xa0 0b3b30 EFLAGS: 00010002 0(0000) GS:ffff8800c758 0000(0000) knlGS:000000000 0000000 1ed>] ? elv_may_ queue+0x1d/ 0x20 e18>] get_request+ 0x48/0x3f0 479>] get_request_ wait+0x29/ 0x1a0 6b0>] ? find_get_ pages_tag+ 0x40/0x120 464>] ? try_to_ wake_up+ 0x244/0x3e0 65c>] blk_get_ request+ 0x6c/0xa0 888>] scsi_execute+ 0x48/0x160 52a>] scsi_execute_ req+0xca/ 0x140 db1>] ioctl_internal_ command. clone.4+ 0x61/0x1b0 045>] ? fsnotify_ clear_marks_ by_inode+ 0x95/0xf0 f7e>] scsi_set_ medium_ removal+ 0x7e/0xb0 71c>] ? isofs_destroy_ inode+0x1c/ 0x20 [isofs] 020>] sr_lock_ door+0x20/ 0x30 3d7>] cdrom_release+ 0xe7/0x140 b88>] sr_block_ release+ 0x38/0x60 4bc>] __blkdev_ put+0x16c/ 0x1b0 5d2>] blkdev_ put+0xd2/ 0x170 d3e>] kill_block_ super+0x4e/ 0x80 1f5>] deactivate_ locked_ super+0x45/ 0x70 e7a>] deactivate_ super+0x4a/ 0x70 294>] mntput_ no_expire+ 0xa4/0xf0 320>] sys_umount+ 0x60/0xd0 002>] system_ call_fastpath+ 0x16/0x1b 5c2>] init_groups+ 0x2/0xa0
[17175.350050] IP: [<ffffffff81a25
[17175.350092] PGD 17e1d1067 PUD 1ea6a8067 PMD 0
[17175.350130] Oops: 0002 [#1] SMP
[17175.350157] last sysfs file: /sys/devices/
[17175.350214] CPU 6
[17175.350227] Modules linked in: nls_utf8 isofs sha256_generic cryptd aes_x86_64 aes_generic ip6table_filter ip6_tables binfmt_misc dm_crypt ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp kvm_intel kvm snd_hda_codec_hdmi snd_hda_codec_via snd_hda_intel snd_hda_codec snd_hwdep snd_seq_midi snd_pcm snd_rawmidi ppdev snd_seq_midi_event snd_seq snd_timer snd_seq_device lp snd soundcore snd_page_alloc parport_pc parport radeon ttm usbhid firewire_ohci usb_storage uas hid r8169 firewire_core drm_kms_helper pata_via crc_itu_t drm i2c_algo_bit configfs
[17175.350740]
[17175.350752] Pid: 1779, comm: umount Tainted: G W 2.6.38-10-generic #44-Ubuntu To Be Filled By O.E.M. To Be Filled By O.E.M./P55M Pro
[17175.350838] RIP: 0010:[<
[17175.350891] RSP: 0018:ffff88014d
[17175.350924] RAX: 0000000000000002 RBX: ffff88017e0686d0 RCX: 0000000000000010
[17175.350968] RDX: ffffffff81a255c0 RSI: 0000000000000000 RDI: ffff88017e0686d0
[17175.351011] RBP: ffff88014d0b3b38 R08: 0000000000000000 R09: ffff88021a5878a0
[17175.351053] R10: ffff88021a5878a0 R11: 0000000000000005 R12: 0000000000000000
[17175.351096] R13: 0000000000000001 R14: ffff88014d0b3d01 R15: ffff88021a5878a0
[17175.351141] FS: 00007eff431d576
[17175.351191] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[17175.351224] CR2: 0000000000000002 CR3: 000000014d94e000 CR4: 00000000000006e0
[17175.351267] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[17175.351311] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[17175.351355] Process umount (pid: 1779, threadinfo ffff88014d0b2000, task ffff8801436b8000)
[17175.351405] Stack:
[17175.351418] ffffffff812bd1ed ffff88014d0b3b98 ffffffff812c2e18 ffff88014d0b3b78
[17175.351471] 0000000000000082 0000000000000000 ffff880100000010 0000000000000000
[17175.351520] ffff88017e0686d0 0000000000000000 0000000000000010 ffff88014d0b3db8
[17175.351573] Call Trace:
[17175.351594] [<ffffffff812bd
[17175.351628] [<ffffffff812c2
[17175.351664] [<ffffffff812c3
[17175.351702] [<ffffffff8110c
[17175.351744] [<ffffffff8105f
[17175.351778] [<ffffffff812c3
[17175.351811] [<ffffffff813e5
[17175.351842] [<ffffffff813e6
[17175.351877] [<ffffffff813df
[17175.351917] [<ffffffff8119f
[17175.351957] [<ffffffff813df
[17175.351993] [<ffffffffa0401
[17175.352032] [<ffffffff813f7
[17175.352064] [<ffffffff8142d
[17175.352094] [<ffffffff813f5
[17175.352124] [<ffffffff81199
[17175.352154] [<ffffffff81199
[17175.352183] [<ffffffff81166
[17175.352213] [<ffffffff81167
[17175.352245] [<ffffffff81167
[17175.352276] [<ffffffff81183
[17175.352306] [<ffffffff81184
[17175.352333] [<ffffffff8100c
[17175.352364] Code: 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 a8 55 a2 81 ff ff ff ff a8 55 a2 81 ff ff ff ff 00 00 00 00 00 00 00 00 34 02 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[17175.352631] RIP [<ffffffff81a25
[17175.352663] RSP <ffff88014d0b3b30>
[17175.352681] CR2: 0000000000000002
[17175.365957] ---[ end trace 7664560b4e26c23d ]---
[17195.912249] usb 1-1.4: USB disconnect, address 3
root@major:~#