In case this may help: Today the hard disk has reported unreadable sectors, so the issue reported could be related to some kind of emerging disk failure.
Giorgos On 23/01/2014 07:47 πμ, Ben Hutchings wrote:
I'm sending this on to the btrfs developers to see if they can help. On Tue, 2014-01-21 at 11:00 +0200, Giorgos Pallas wrote: [...]I just installed 3.12-amd64 stock kernel. It booted OK, I opened a konsole and just tried to installed the kernel headers. Just as aptitude tried to start downloading packages, I got: E: Method http has died unexpectedly! E: Sub-process http received a segmentation fault. and btrfs has crashed as seen in dmesg. It should be noted that I use btrfs without problems with 3.7-trunk-amd64 for almost a year.[...] The full message can be seen at <http://bugs.debian.org/736227>; here is the crash log:[ 322.368186] general protection fault: 0000 [#1] SMP [ 322.368233] Modules linked in: cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative xt_multiport uinput ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi fuse ip6table_filter ip6table_mangle ip6_tables xt_tcpudp iptable_filter iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle ip_tables x_tables ext4 crc16 mbcache jbd2 loop firewire_sbp2 uvcvideo arc4 videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media b43 joydev bcma snd_hda_codec_hdmi mac80211 cfg80211 snd_hda_codec_idt ir_lirc_codec rfkill snd_hda_intel snd_hda_codec rng_core iTCO_wdt snd_hwdep snd_pcm r852 lirc_dev iTCO_vendor_support ir_mce_kbd_decoder snd_page_alloc snd_seq ir_sony_decoder ir_sanyo_decoder dell_wmi ir_jvc_decoder sm_common nand ir_nec_decoder ir_rc6_decoder ir_rc5_decoder nand_ecc rc_rc6_mce nand_ids mtd lpc_ich i2c_i801 dell_laptop coretemp acpi_cpufreq snd_seq_device ! r592 snd_timer mfd_core sparse_keymap dcdbas psmouse snd ite_cir rc_core memstick soundcore processor pcspkr wmi serio_raw battery ac evdev btrfs xor raid6_pq crc32c libcrc32c sha256_generic cbc dm_crypt dm_mod sg sd_mod crct10dif_generic sr_mod crc_t10dif cdrom crct10dif_common firewire_ohci sdhci_pci sdhci firewire_core crc_itu_t thermal ahci libahci tg3 libata ssb mmc_core pcmcia i915 ptp pps_core libphy pcmcia_core video scsi_mod ehci_pci uhci_hcd ehci_hcd button i2c_algo_bit drm_kms_helper drm i2c_core thermal_sys usbcore usb_common [ 322.369458] CPU: 0 PID: 4353 Comm: http Not tainted 3.12-1-amd64 #1 Debian 3.12.6-2 [ 322.369493] Hardware name: Dell Inc. Studio 1737/0P792H, BIOS A09 04/14/2011 [ 322.369534] task: ffff880036e80840 ti: ffff88009bf7e000 task.ti: ffff88009bf7e000 [ 322.369569] RIP: 0010:[<ffffffff812713e2>] [<ffffffff812713e2>] memcpy+0x12/0x110 [ 322.369615] RSP: 0018:ffff88009bf7f968 EFLAGS: 00010202 [ 322.369646] RAX: ffff88008e2eaf39 RBX: 0000000000000001 RCX: 0000000000000001 [ 322.369679] RDX: 0000000000000001 RSI: db73880000000000 RDI: ffff88008e2eaf39 [ 322.369711] RBP: ffff880131ca9770 R08: 0000000000001000 R09: ffff88009bf7f978 [ 322.369744] R10: 0000000000000000 R11: 0000000000000000 R12: 6db6db6db6db6db7 [ 322.369776] R13: 0000160000000000 R14: ffff88008e2eaf3a R15: 0000000000000001 [ 322.369810] FS: 00007f00804a4720(0000) GS:ffff88013fc00000(0000) knlGS:0000000000000000 [ 322.369855] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 322.369881] CR2: ffffffffff600400 CR3: 000000009d52b000 CR4: 00000000000007f0 [ 322.369914] Stack: [ 322.369928] ffffffffa034a568 0000000000000000 ffff8801378a0000 0000000000000000 [ 322.369980] ffff88013b3a9250 ffff88008e2ea000 ffff8800aa637d50 ffff8800925c3260 [ 322.370032] ffffffffa032f510 0000000000001000 ffff880131ca96a0 ffffea0001f1a330 [ 322.370085] Call Trace: [ 322.370119] [<ffffffffa034a568>] ? read_extent_buffer+0xc8/0x120 [btrfs] [ 322.370164] [<ffffffffa032f510>] ? btrfs_get_extent+0x910/0x990 [btrfs] [ 322.370214] [<ffffffffa03469b8>] ? __do_readpage+0x398/0x780 [btrfs] [ 322.370256] [<ffffffffa032ec00>] ? btrfs_real_readdir+0x550/0x550 [btrfs] [ 322.370307] [<ffffffffa0347142>] ? __extent_readpages.constprop.43+0x2d2/0x2f0 [btrfs] [ 322.370355] [<ffffffffa032ec00>] ? btrfs_real_readdir+0x550/0x550 [btrfs] [ 322.370406] [<ffffffffa0348de2>] ? extent_readpages+0x182/0x190 [btrfs] [ 322.370457] [<ffffffffa032ec00>] ? btrfs_real_readdir+0x550/0x550 [btrfs] [ 322.370499] [<ffffffff8115ba6b>] ? kmem_getpages+0x15b/0x1a0 [ 322.370527] [<ffffffff811554ad>] ? alloc_pages_current+0x9d/0x160 [ 322.370565] [<ffffffff8111dbc3>] ? __do_page_cache_readahead+0x193/0x240 [ 322.370598] [<ffffffff8111e07a>] ? ondemand_readahead+0x14a/0x280 [ 322.370636] [<ffffffff81113986>] ? generic_file_aio_read+0x4a6/0x6f0 [ 322.370668] [<ffffffff81172a07>] ? do_sync_read+0x57/0x90 [ 322.370701] [<ffffffff81172f94>] ? vfs_read+0x94/0x160 [ 322.370726] [<ffffffff81173a83>] ? SyS_read+0x43/0xa0 [ 322.370759] [<ffffffff81499b39>] ? system_call_fastpath+0x16/0x1b [ 322.370795] Code: 43 58 48 2b 43 50 88 43 4e eb e9 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 <f3> a4 c3 20 4c 8b 06 4c 8b 4e 08 4c 8b 56 10 4c 8b 5e 18 48 8d [ 322.371118] RIP [<ffffffff812713e2>] memcpy+0x12/0x110 [ 322.371154] RSP <ffff88009bf7f968> [ 322.378460] ---[ end trace 4d0836c03317ee9d ]---
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