FYI, this crash was reproducible and was happening when using rsync with --inplace option on a fragmented file: # filefrag * bayes_journal: 2 extents found bayes_seen: 988 extents found bayes_toks: 41 extents found rsync process was hanging here: var/lib/amavis/.spamassassin/ var/lib/amavis/.spamassassin/bayes_journal (no more entries after that) Mount option contains "autodefrag"; there were arond 20 snapshots of that subvolume present. After removing the fragmented file, it doesn't crash anymore. The size of the file was around 80 MB. Unfortunately I didn't check if the issue shows up with autodefrag mount option disabled. -- Tomasz Chmielewski http://wpkg.org On Sun, 23 Feb 2014 12:25:28 +0100 Tomasz Chmielewski <tch@xxxxxxxxxxx> wrote: > Got this with 3.14-rc3: > > [525983.966567] ------------[ cut here ]------------ > [525983.966645] kernel BUG at fs/btrfs/ctree.c:3215! > [525983.966705] invalid opcode: 0000 [#1] SMP > [525983.966765] Modules linked in: ipt_MASQUERADE iptable_nat > nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack > ip_tables x_tables cpufreq_ondemand cpufreq_conservative > cpufreq_powersave cpufreq_stats bridge stp llc ipv6 btrfs xor > raid6_pq zlib_deflate loop parport_pc parport battery button video > tpm_infineon tpm_tis tpm ehci_pci pcspkr acpi_cpufreq ehci_hcd > i2c_i801 i2c_core lpc_ich mfd_core ext4 crc16 jbd2 mbcache raid1 sg > sd_mod ahci libahci libata scsi_mod r8169 mii [525983.967240] CPU: 4 > PID: 15321 Comm: btrfs-endio-wri Not tainted 3.14.0-rc3 #1 > [525983.967351] Hardware name: System manufacturer System Product > Name/P8H77-M PRO, BIOS 1101 02/04/2013 [525983.967465] task: > ffff8807f12a0000 ti: ffff8805eb9f8000 task.ti: ffff8805eb9f8000 > [525983.967576] RIP: 0010:[<ffffffffa02a8361>] [<ffffffffa02a8361>] > btrfs_set_item_key_safe+0xb2/0x119 [btrfs] [525983.967706] RSP: > 0018:ffff8805eb9f9b18 EFLAGS: 00010286 [525983.967766] RAX: > 00000000ffffffff RBX: 000000000000000a RCX: 0000000000000000 > [525983.967877] RDX: 00000000033c9000 RSI: ffff8805eb9f9c4f RDI: > ffff8805eb9f9af7 [525983.967987] RBP: ffff8805eb9f9b68 R08: > ffff8805eb9f9b38 R09: ffff88047c1ccc08 [525983.968098] R10: > 0000000000001000 R11: 0000160000000000 R12: ffff88047c1ccb40 > [525983.968209] R13: ffff8807e7c76360 R14: ffff8802a351a000 R15: > ffff8805eb9f9c4f [525983.968321] FS: 0000000000000000(0000) > GS:ffff88081fb00000(0000) knlGS:0000000000000000 [525983.968434] CS: > 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [525983.968494] CR2: > 00000000040f9fe8 CR3: 000000000160b000 CR4: 00000000001407e0 > [525983.968604] Stack: [525983.968657] 0000000000000000 > 2600000000000000 6c0000000000030f 00000000033c5000 [525983.968773] > 0000000000030f26 ffff8807e7c76360 ffff88047c1ccb40 00000000033e0000 > [525983.968888] 0000000000000000 0000000000000000 ffff8805eb9f9ca8 > ffffffffa02d589d [525983.969003] Call Trace: [525983.969076] > [<ffffffffa02d589d>] __btrfs_drop_extents+0x6c1/0xb12 [btrfs] > [525983.969155] [<ffffffffa02c9811>] > insert_reserved_file_extent.constprop.63+0x9a/0x2a5 [btrfs] > [525983.969281] [<ffffffffa02ccebb>] > btrfs_finish_ordered_io+0x265/0x3ef [btrfs] [525983.969403] > [<ffffffffa02cd055>] finish_ordered_fn+0x10/0x12 [btrfs] > [525983.969481] [<ffffffffa02eb649>] worker_loop+0x15e/0x495 [btrfs] > [525983.969556] [<ffffffffa02eb4eb>] ? > btrfs_queue_worker+0x269/0x269 [btrfs] [525983.969623] > [<ffffffff81050c76>] kthread+0xcd/0xd5 [525983.969685] > [<ffffffff81050ba9>] ? kthread_freezable_should_stop+0x43/0x43 > [525983.969749] [<ffffffff81398a7c>] ret_from_fork+0x7c/0xb0 > [525983.969811] [<ffffffff81050ba9>] ? > kthread_freezable_should_stop+0x43/0x43 [525983.969873] Code: 8d 75 > bf b9 11 00 00 00 4c 89 e7 48 63 d2 48 6b d2 19 48 83 c2 65 e8 b0 89 > 03 00 48 8d 7d bf 4c 89 fe e8 9e f5 ff ff 85 c0 7f 02 <0f> 0b 49 8b > 47 09 48 63 d3 48 8d 75 bf 48 6b d2 19 b9 11 00 00 [525983.970116] > RIP [<ffffffffa02a8361>] btrfs_set_item_key_safe+0xb2/0x119 [btrfs] > [525983.970237] RSP <ffff8805eb9f9b18> [525983.970581] ---[ end > trace 40b604c8c92dba0d ]--- > > > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
