https://bugzilla.redhat.com/show_bug.cgi?id=906142
With 3.8 kernels in Fedora 18, using encfs on btrfs I get the following error. It can take hours of use before I get a reoccurrence, and I need to btrfsck, btrfs-zero-log, and/or mount with '-o recovery' to get the filesystem back after a reboot. No data appears to be lost, and a scrub runs to completion with no errors. [14691.074991] WARNING: at fs/btrfs/extent_io.c:4718 map_private_extent_buffer+0xd4/0xe0 [btrfs]() [14691.074993] Hardware name: C2SEA [14691.074995] btrfs bad mapping eb start 645984256 len 4096, wanted 4096 8 [14691.074997] Modules linked in: vfat fat usb_storage fuse rfcomm bnep nf_conntrack_ipv4 nf_defrag_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_conntrack ip6table_filter nf_conntrack ip6_tables w83627ehf hwmon_vid snd_hda_codec_realtek snd_hda_intel snd_hda_codec uvcvideo videobuf2_vmalloc snd_hwdep snd_seq snd_seq_device videobuf2_memops btusb videobuf2_core videodev snd_pcm bluetooth iTCO_wdt snd_page_alloc media rfkill coretemp snd_timer iTCO_vendor_support i2c_i801 snd lpc_ich mfd_core soundcore microcode r8169 mii vhost_net tun macvtap macvlan kvm_intel kvm binfmt_misc i2c_dev uinput btrfs zlib_deflate libcrc32c ata_generic pata_acpi i915 video firewire_ohci i2c_algo_bit firewire_core drm_kms_helper pata_it8213 crc_itu_t drm i2c_core [14691.075070] Pid: 1926, comm: encfs Not tainted 3.8.0-0.rc7.git0.1.fc19.x86_64 #1 [14691.075072] Call Trace: [14691.075093] [<ffffffffa01a7c00>] ? map_private_extent_buffer+0xb0/0xe0 [btrfs] [14691.075099] [<ffffffff8105c210>] warn_slowpath_common+0x70/0xa0 [14691.075102] [<ffffffff8105c28c>] warn_slowpath_fmt+0x4c/0x50 [14691.075121] [<ffffffffa01a7c24>] map_private_extent_buffer+0xd4/0xe0 [btrfs] [14691.075139] [<ffffffffa019da30>] btrfs_set_token_64+0x60/0xf0 [btrfs] [14691.075159] [<ffffffffa01be264>] btrfs_log_changed_extents+0x384/0x600 [btrfs] [14691.075178] [<ffffffffa01c05b8>] btrfs_log_inode+0x3b8/0x660 [btrfs] [14691.075196] [<ffffffffa01c1519>] btrfs_log_inode_parent+0x169/0x450 [btrfs] [14691.075216] [<ffffffffa01c183a>] btrfs_log_dentry_safe+0x3a/0x60 [btrfs] [14691.075234] [<ffffffffa0198400>] btrfs_sync_file+0x150/0x1f0 [btrfs] [14691.075239] [<ffffffff811c48c6>] do_fsync+0x56/0x80 [14691.075242] [<ffffffff811c4b50>] sys_fsync+0x10/0x20 [14691.075247] [<ffffffff8163e419>] system_call_fastpath+0x16/0x1b [14691.075253] ---[ end trace 0c19c78181b4038d ]--- [14691.075261] BUG: unable to handle kernel NULL pointer dereference at (null) [14691.075311] IP: [<ffffffffa01a7e23>] write_extent_buffer+0xd3/0x150 [btrfs] [14691.075364] PGD 208a79067 PUD 2089a6067 PMD 0 [14691.075400] Oops: 0000 [#1] SMP [14691.075425] Modules linked in: vfat fat usb_storage fuse rfcomm bnep nf_conntrack_ipv4 nf_defrag_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_conntrack ip6table_filter nf_conntrack ip6_tables w83627ehf hwmon_vid snd_hda_codec_realtek snd_hda_intel snd_hda_codec uvcvideo videobuf2_vmalloc snd_hwdep snd_seq snd_seq_device videobuf2_memops btusb videobuf2_core videodev snd_pcm bluetooth iTCO_wdt snd_page_alloc media rfkill coretemp snd_timer iTCO_vendor_support i2c_i801 snd lpc_ich mfd_core soundcore microcode r8169 mii vhost_net tun macvtap macvlan kvm_intel kvm binfmt_misc i2c_dev uinput btrfs zlib_deflate libcrc32c ata_generic pata_acpi i915 video firewire_ohci i2c_algo_bit firewire_core drm_kms_helper pata_it8213 crc_itu_t drm i2c_core [14691.076012] CPU 2 [14691.076012] Pid: 1926, comm: encfs Tainted: G W 3.8.0-0.rc7.git0.1.fc19.x86_64 #1 Supermicro C2SEA/C2SEA [14691.076012] RIP: 0010:[<ffffffffa01a7e23>] [<ffffffffa01a7e23>] write_extent_buffer+0xd3/0x150 [btrfs] [14691.076012] RSP: 0018:ffff88020b653c20 EFLAGS: 00010202 [14691.076012] RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000008 [14691.076012] RDX: 0000000000001008 RSI: 0000000026810000 RDI: ffff8801316cf988 [14691.076012] RBP: ffff88020b653c50 R08: 000000000000000a R09: 00000000000003ea [14691.076012] R10: 0000000000000000 R11: ffff88020b6538d6 R12: ffff88020b653c80 [14691.076012] R13: ffff8801316cf988 R14: 0000000000000000 R15: 0000000000000008 [14691.076012] FS: 00007fd04462b800(0000) GS:ffff880237d00000(0000) knlGS:0000000000000000 [14691.076012] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [14691.076012] CR2: 0000000000000000 CR3: 00000001e7e39000 CR4: 00000000000007e0 [14691.076012] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [14691.076012] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [14691.076012] Process encfs (pid: 1926, threadinfo ffff88020b652000, task ffff8801f0c44620) [14691.076012] Stack: [14691.076012] 0000000000001000 ffff88020b653d70 ffff8801316cf988 0000000000001000 [14691.076012] 0000000000000025 0000000000000fdb ffff88020b653cb0 ffffffffa019dab0 [14691.076012] 0000000000000000 ffff880106418000 0000000000001000 0000000000001000 [14691.076012] Call Trace: [14691.076012] [<ffffffffa019dab0>] btrfs_set_token_64+0xe0/0xf0 [btrfs] [14691.076012] [<ffffffffa01be264>] btrfs_log_changed_extents+0x384/0x600 [btrfs] [14691.076012] [<ffffffffa01c05b8>] btrfs_log_inode+0x3b8/0x660 [btrfs] [14691.076012] [<ffffffffa01c1519>] btrfs_log_inode_parent+0x169/0x450 [btrfs] [14691.076012] [<ffffffffa01c183a>] btrfs_log_dentry_safe+0x3a/0x60 [btrfs] [14691.076012] [<ffffffffa0198400>] btrfs_sync_file+0x150/0x1f0 [btrfs] [14691.076012] [<ffffffff811c48c6>] do_fsync+0x56/0x80 [14691.076012] [<ffffffff811c4b50>] sys_fsync+0x10/0x20 [14691.076012] [<ffffffff8163e419>] system_call_fastpath+0x16/0x1b [14691.076012] Code: e0 0c 48 01 d0 4c 89 c2 4a 8d 3c 30 e8 57 df 14 e1 4c 8b 45 d0 4d 01 c4 4d 29 c7 74 3b 45 31 f6 49 8b 85 50 01 00 00 48 8b 04 18 <48> 8b 30 83 e6 08 75 95 be af 12 00 00 48 c7 c7 a4 2b 1f a0 48 [14691.076012] RIP [<ffffffffa01a7e23>] write_extent_buffer+0xd3/0x150 [btrfs] [14691.076012] RSP <ffff88020b653c20> [14691.076012] CR2: 0000000000000000 [14691.106929] ---[ end trace 0c19c78181b4038e ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
