Hi Niccolo,

> btrfs + dmcrypt + compress=lzo + autodefrag = corruption at first boot

Just to be curious - couldn't it be a hardware issue? I use almost the
same setup (compress-force=lzo instead of compress-force=lzo) on my
laptop for 2-3 years and haven't experienced any issues since
~kernel-3.14 or so.

Br, Clemens Eisserer


2016-05-07 17:45 GMT+02:00 Niccolò Belli <darkba...@linuxsystems.it>:
> btrfs + dmcrypt + compress=lzo + autodefrag = corruption at first boot
> So discard is not the culprit. Will try to remove compress=lzo and
> autodefrag and see if it still happens.
>
> [  748.224346] BTRFS error (device dm-0): memmove bogus src_offset 5431 move
> len 4294962894 len 16384
> [  748.226206] ------------[ cut here ]------------
> [  748.227831] kernel BUG at fs/btrfs/extent_io.c:5723!
> [  748.229498] invalid opcode: 0000 [#1] PREEMPT SMP
> [  748.231161] Modules linked in: ext4 mbcache jbd2 nls_iso8859_1 nls_cp437
> vfat fat snd_hda_codec_hdmi dell_laptop dcdbas dell_wmi iTCO_wdt
> iTCO_vendor_support intel_rapl x86_pkg_temp_thermal intel_powerclamp
> coretemp kvm_intel arc4 kvm irqbypass psmouse serio_raw pcspkr elan_i2c
> snd_soc_ssm4567 snd_soc_rt286 snd_soc_rl6347a snd_soc_core i2c_hid iwlmvm
> snd_compress snd_pcm_dmaengine ac97_bus mac80211 uvcvideo videobuf2_vmalloc
> btusb videobuf2_memops cdc_ether btrtl usbnet iwlwifi btbcm videobuf2_v4l2
> btintel intel_pch_thermal videobuf2_core i2c_i801 videodev r8152 rtsx_pci_ms
> cfg80211 bluetooth visor media mii memstick joydev evdev mousedev input_leds
> rfkill mac_hid crc16 i915 fan thermal wmi dw_dmac int3403_thermal video
> dw_dmac_core drm_kms_helper snd_soc_sst_acpi i2c_designware_platform
> snd_soc_sst_match
> [  748.237203]  snd_hda_intel 8250_dw i2c_designware_core gpio_lynxpoint
> spi_pxa2xx_platform drm int3402_thermal snd_hda_codec battery tpm_crb
> intel_hid snd_hda_core sparse_keymap fjes snd_hwdep int3400_thermal
> acpi_thermal_rel tpm_tis snd_pcm intel_gtt tpm acpi_als syscopyarea
> sysfillrect snd_timer sysimgblt fb_sys_fops mei_me i2c_algo_bit
> processor_thermal_device kfifo_buf processor snd industrialio acpi_pad ac
> int340x_thermal_zone mei intel_soc_dts_iosf button lpc_ich soundcore shpchp
> sch_fq_codel ip_tables x_tables btrfs xor raid6_pq jitterentropy_rng
> sha256_ssse3 sha256_generic hmac drbg ansi_cprng algif_skcipher af_alg uas
> usb_storage dm_crypt dm_mod sd_mod rtsx_pci_sdmmc atkbd libps2
> crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel
> aes_x86_64 lrw gf128mul glue_helper
> [  748.244176]  ablk_helper cryptd ahci libahci libata scsi_mod xhci_pci
> rtsx_pci xhci_hcd i8042 serio sdhci_acpi sdhci led_class mmc_core pl2303
> mos7720 usbserial parport hid_generic usbhid hid usbcore usb_common
> [  748.246662] CPU: 0 PID: 2316 Comm: pacman Not tainted 4.5.1-1-ARCH #1
> [  748.249123] Hardware name: Dell Inc. XPS 13 9343/0F5KF3, BIOS A07
> 11/11/2015
> [  748.251576] task: ffff8800d9d98e40 ti: ffff8800cec10000 task.ti:
> ffff8800cec10000
> [  748.254064] RIP: 0010:[<ffffffffa0300bac>]  [<ffffffffa0300bac>]
> memmove_extent_buffer+0x10c/0x110 [btrfs]
> [  748.256600] RSP: 0018:ffff8800cec13c18  EFLAGS: 00010246
> [  748.259120] RAX: 0000000000000000 RBX: ffff88020c01ba40 RCX:
> 0000000000000056
> [  748.261631] RDX: 0000000000000000 RSI: ffff88021e40db38 RDI:
> ffff88021e40db38
> [  748.264166] RBP: ffff8800cec13c48 R08: 0000000000000000 R09:
> 000000000000033b
> [  748.266716] R10: 0000000000000000 R11: 000000000000033b R12:
> 00000000ffffeece
> [  748.269267] R13: 0000000100000405 R14: 00000001000004c9 R15:
> ffff88020c01ba40
> [  748.271818] FS:  00007f14d4271740(0000) GS:ffff88021e400000(0000)
> knlGS:0000000000000000
> [  748.274392] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  748.276987] CR2: 0000000001630008 CR3: 00000000cffc8000 CR4:
> 00000000003406f0
> [  748.279603] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [  748.282220] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
> 0000000000000400
> [  748.284815] Stack:
> [  748.287422]  00000000e3438cd2 ffff88020c01ba40 00000000000000c4
> 000000000000002a
> [  748.290082]  000000000000006b 00000000000003a0 ffff8800cec13ce8
> ffffffffa02b612c
> [  748.292754]  ffffffffa02b433d ffff8800da9ca820 0000002800000000
> ffff8800daa78bd0
> [  748.295441] Call Trace:
> [  748.298104]  [<ffffffffa02b612c>] btrfs_del_items+0x33c/0x4a0 [btrfs]
> [  748.300827]  [<ffffffffa02b433d>] ? btrfs_search_slot+0x90d/0x990 [btrfs]
> [  748.303564]  [<ffffffffa02f3d9c>] ? btrfs_get_token_8+0x6c/0x130 [btrfs]
> [  748.306311]  [<ffffffffa02e5ca9>] btrfs_truncate_inode_items+0x649/0xd20
> [btrfs]
> [  748.309071]  [<ffffffffa0330b5e>] ?
> btrfs_delayed_inode_release_metadata.isra.1+0x4e/0xf0 [btrfs]
> [  748.311860]  [<ffffffffa02e7315>] btrfs_evict_inode+0x485/0x5d0 [btrfs]
> [  748.314627]  [<ffffffff81207e55>] evict+0xc5/0x190
> [  748.317412]  [<ffffffff81208689>] iput+0x1d9/0x260
> [  748.320199]  [<ffffffff811fd689>] do_unlinkat+0x199/0x2d0
> [  748.322988]  [<ffffffff811fdf66>] SyS_unlink+0x16/0x20
> [  748.325781]  [<ffffffff815ad6ae>] entry_SYSCALL_64_fastpath+0x12/0x6d
> [  748.328584] Code: 41 5e 41 5f 5d c3 48 8b 7f 18 48 89 f2 48 c7 c6 40 44
> 36 a0 e8 06 90 fa ff 0f 0b 48 8b 7f 18 48 c7 c6 08 44 36 a0 e8 f4 8f fa ff
> <0f> 0b 66 90 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 53 48 89 fb
> [  748.331558] RIP  [<ffffffffa0300bac>] memmove_extent_buffer+0x10c/0x110
> [btrfs]
> [  748.334473]  RSP <ffff8800cec13c18>
> [  748.356077] ---[ end trace 9bfb28800ab52273 ]---
> [  748.359042] note: pacman[2316] exited with preempt_count 2
>
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