On Fri, 2011-09-02 at 12:18 +0100, Maciej Marcin Piechotka wrote: > On Tue, 2011-08-30 at 09:47 +0100, Maciej Marcin Piechotka wrote: > > On Tue, 2011-08-30 at 14:27 +0800, Miao Xie wrote: > > > On mon, 29 Aug 2011 02:45:07 +0100, Maciej Marcin Piechotka wrote: > > > > I receive the bug when I try to snapshot from fcron: > > > > > > > > 2011-08-29T02:00:46.529238+01:00 picard kernel: [ 4155.444476] > > > > ------------[ cut here ]------------ > > > > 2011-08-29T02:00:46.529253+01:00 picard kernel: [ 4155.444490] kernel > > > > BUG at fs/btrfs/inode.c:2299! > > > > 2011-08-29T02:00:46.529256+01:00 picard kernel: [ 4155.444498] invalid > > > > opcode: 0000 [#1] PREEMPT SMP > > > > 2011-08-29T02:00:46.529259+01:00 picard kernel: [ 4155.444506] CPU 1 > > > > 2011-08-29T02:00:46.529264+01:00 picard kernel: [ 4155.444508] Modules > > > > linked in: microcode reiserfs btrfs zlib_deflate libcrc32c arc4 > > > > snd_hda_codec_conexant iwlagn mac80211 uvcvideo videodev > > > > v4l2_compat_ioctl32 cfg80211 snd_hda_intel snd_hda_codec snd_hwdep > > > > snd_pcm snd_timer snd thinkpad_acpi soundcore snd_page_alloc hwmon > > > > rfkill nvram e1000e zram(C) rtc_cmos tp_smapi thinkpad_ec psmouse > > > > fscache kvm_intel kvm configs ipv6 autofs4 usbhid uhci_hcd firewire_ohci > > > > firewire_core sdhci_pci ehci_hcd crc_itu_t sdhci mmc_core sd_mod usbcore > > > > sr_mod cdrom > > > > 2011-08-29T02:00:46.529267+01:00 picard kernel: [ 4155.444569] > > > > 2011-08-29T02:00:46.529270+01:00 picard kernel: [ 4155.444576] Pid: > > > > 3167, comm: btrfs Tainted: P C 3.0.3-gentoo #1 LENOVO > > > > 2242CTO/2242CTO > > > > 2011-08-29T02:00:46.529274+01:00 picard kernel: [ 4155.444586] RIP: > > > > 0010:[<ffffffffa031339b>] [<ffffffffa031339b>] btrfs_orphan_del > > > > +0x8d/0xa9 [btrfs] > > > > 2011-08-29T02:00:46.529276+01:00 picard kernel: [ 4155.444611] RSP: > > > > 0000:ffff880111c21b58 EFLAGS: 00010282 > > > > 2011-08-29T02:00:46.529279+01:00 picard kernel: [ 4155.444619] RAX: > > > > 00000000fffffffe RBX: ffff88011141bd60 RCX: 0000000000001000 > > > > 2011-08-29T02:00:46.529289+01:00 picard kernel: [ 4155.444626] RDX: > > > > 000000000000000f RSI: ffff880110c8d250 RDI: ffff880134092d80 > > > > 2011-08-29T02:00:46.529292+01:00 picard kernel: [ 4155.444634] RBP: > > > > 0000000000000000 R08: ffff880111c21a30 R09: 0000000000000011 > > > > 2011-08-29T02:00:46.529297+01:00 picard kernel: [ 4155.444642] R10: > > > > 00000000000001dc R11: 0000000000000286 R12: ffff880136866300 > > > > 2011-08-29T02:00:46.529299+01:00 picard kernel: [ 4155.444650] R13: > > > > ffff880130cac800 R14: 0000000000000001 R15: ffff880130cacb88 > > > > 2011-08-29T02:00:46.529302+01:00 picard kernel: [ 4155.444658] FS: > > > > 00007f126715a740(0000) GS:ffff88013bc80000(0000) knlGS:0000000000000000 > > > > 2011-08-29T02:00:46.529304+01:00 picard kernel: [ 4155.444666] CS: 0010 > > > > DS: 0000 ES: 0000 CR0: 000000008005003b > > > > 2011-08-29T02:00:46.529307+01:00 picard kernel: [ 4155.444673] CR2: > > > > 00007f5149eb7008 CR3: 000000009caca000 CR4: 00000000000406e0 > > > > 2011-08-29T02:00:46.529309+01:00 picard kernel: [ 4155.444681] DR0: > > > > 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > > > > 2011-08-29T02:00:46.529311+01:00 picard kernel: [ 4155.444689] DR3: > > > > 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > > > > 2011-08-29T02:00:46.529314+01:00 picard kernel: [ 4155.444697] Process > > > > btrfs (pid: 3167, threadinfo ffff880111c20000, task ffff88010b35a140) > > > > 2011-08-29T02:00:46.529316+01:00 picard kernel: [ 4155.444705] Stack: > > > > 2011-08-29T02:00:46.529318+01:00 picard kernel: [ 4155.444711] > > > > 0000000000c369c5 ffff880130cac800 ffff880110c8dbe0 0000000000c369c5 > > > > 2011-08-29T02:00:46.529321+01:00 picard kernel: [ 4155.444720] > > > > 0000000000000000 ffff880130cacb88 ffff880130cacb90 ffffffffa03173c4 > > > > 2011-08-29T02:00:46.562822+01:00 picard kernel: [ 4155.444730] > > > > ffff880136866300 ffff88011141bd60 ffff880110c8dbe0 fffb000000000000 > > > > 2011-08-29T02:00:46.562959+01:00 picard kernel: [ 4155.444739] Call > > > > Trace: > > > > 2011-08-29T02:00:46.562964+01:00 picard kernel: [ 4155.444756] > > > > [<ffffffffa03173c4>] ? btrfs_orphan_cleanup+0x196/0x2d9 [btrfs] > > > > 2011-08-29T02:00:46.562966+01:00 picard kernel: [ 4155.444773] > > > > [<ffffffffa0317862>] ? btrfs_lookup_dentry+0x35b/0x392 [btrfs] > > > > 2011-08-29T02:00:46.562969+01:00 picard kernel: [ 4155.444790] > > > > [<ffffffffa03178a2>] ? btrfs_lookup+0x9/0x1f [btrfs] > > > > 2011-08-29T02:00:46.562971+01:00 picard kernel: [ 4155.444801] > > > > [<ffffffff810ccf63>] ? d_alloc_and_lookup+0x3a/0x60 > > > > 2011-08-29T02:00:46.562973+01:00 picard kernel: [ 4155.444810] > > > > [<ffffffff810ce356>] ? walk_component+0x210/0x3b7 > > > > 2011-08-29T02:00:46.562975+01:00 picard kernel: [ 4155.444818] > > > > [<ffffffff810cea4a>] ? path_lookupat+0x7c/0x29e > > > > 2011-08-29T02:00:46.562979+01:00 picard kernel: [ 4155.444827] > > > > [<ffffffff810cfc34>] ? do_path_lookup+0x1c/0x87 > > > > 2011-08-29T02:00:46.562981+01:00 picard kernel: [ 4155.444835] > > > > [<ffffffff810cffe2>] ? user_path_at+0x49/0x7b > > > > 2011-08-29T02:00:46.562983+01:00 picard kernel: [ 4155.444843] > > > > [<ffffffff810c8781>] ? vfs_fstatat+0x3c/0x6a > > > > 2011-08-29T02:00:46.562986+01:00 picard kernel: [ 4155.444853] > > > > [<ffffffff8102d38e>] ? sub_preempt_count+0x83/0x94 > > > > 2011-08-29T02:00:46.562988+01:00 picard kernel: [ 4155.444861] > > > > [<ffffffff810c88ab>] ? sys_newstat+0x12/0x2b > > > > 2011-08-29T02:00:46.562990+01:00 picard kernel: [ 4155.444870] > > > > [<ffffffff81346d4f>] ? page_fault+0x1f/0x30 > > > > 2011-08-29T02:00:46.562992+01:00 picard kernel: [ 4155.444878] > > > > [<ffffffff8134713b>] ? system_call_fastpath+0x16/0x1b > > > > 2011-08-29T02:00:46.562995+01:00 picard kernel: [ 4155.444885] Code: 4d > > > > 85 e4 74 28 48 8b 93 70 fe ff ff 48 81 fa 00 01 00 00 77 07 48 8b 93 b0 > > > > 00 00 00 4c 89 ee 4c 89 e7 e8 af 28 02 00 85 c0 74 02 <0f> 0b 85 ed 74 > > > > 08 48 89 df e8 e0 ca fe ff 5d 31 c0 5b 5d 41 5c > > > > 2011-08-29T02:00:46.563001+01:00 picard kernel: [ 4155.444926] RIP > > > > [<ffffffffa031339b>] btrfs_orphan_del+0x8d/0xa9 [btrfs] > > > > 2011-08-29T02:00:46.563004+01:00 picard kernel: [ 4155.444943] RSP > > > > <ffff880111c21b58> > > > > 2011-08-29T02:00:46.563014+01:00 picard kernel: [ 4155.464057] ---[ end > > > > trace 276655044a13c7af ]--- > > > > > > > > Unfortunately it results in freeze of system and I cannot give more > > > > details. Sometimes it happens not from fcron but then it does not result > > > > in freeze (???). > > > > > > Could you give me the method to reproduce it? > > > > > > Thanks > > > Miao > > > > > > > Unfortunatly no. Today, when I haven't worked at 2 am, it happened at 5 > > am resulting in freeze of desktop except screensaver (which probably > > don't issue I/O to $HOME). It happens at least once per day but I > > neither know how to trigger it nor what is the underlying issue. > > > > HOWEVER, I did tried in the past to: > > - Backup the image on external harddrive > > - Loop-mount it > > - mkfs.btrfs /dev/my/partition > > - rsync -aHAXP back the contents > > > > and it didn't solved the problem. > > > > Additionally very often restarts result in known OOPS bug. > > > > I do have the old image but I've just tried 3.1 kernel when you sent > > this message. > > > > > > > > > > Regards > > > > > > > Regards > > I reproduced it on 3.1 rc4. The behaviour is similar except it is > trigger each time I log into account (NOT mount /home - log into > account). > > It might have something in common with suspend. > > Regards > To keep up-to-date: - It happens at 2 am it results in freeze. To be more precise the snapshot is scheduled at 2 am and the lock was 2:07 am. The after each odd reboot the bug is triggered on boot and on each even boot the computer hangs shortly after logging in. I can still rsync to separate partition w/out problems in case of even boot. - If it happens at other time (for certain reasons I haven't reproduced it with 3.1 - long story why not but I suspect it might correlate to uptime) the bug may or may not freeze computer. Regards
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