Threaded Mode | Linear Mode

qoop · 14th Dec, 2020, 12:20 PM

(14th Dec, 2020 08:21 AM)Nachteule Wrote: Hmmm, absolutely no idea what happens

Seems that the sync process never ends

What about if you run sudo sync from the cmdline?

This command is just running without any output.

I have added --syslog --verbose to btrfs-auto-snapshot command

Terminal

sudo /usr/sbin/btrfs-auto-snapshot xbiancopy --syslog --verbose --img /dev/root /media/usb0/xbian.img

But nothing is happening

looking in dmesg output, I found this

Code:

[   34.326845] 8<--- cut here ---

[   34.326855] Unable to handle kernel NULL pointer dereference at virtual address 00000000

[   34.326863] pgd = a452f769

[   34.326871] [00000000] *pgd=0d998003, *pmd=00000000

[   34.326887] Internal error: Oops: 206 [#1] PREEMPT SMP ARM

[   34.326931] Modules linked in: zram zsmalloc hci_uart btbcm serdev joydev sg raspberrypi_hwmon v3d gpu_sched brcmfmac bnep brcmutil evdev bcm2835_isp(C) bluetooth bcm2835_codec(C) uas bcm2835_v4l2(C) videobuf2_dma_contig v4l2_mem2mem ecdh_generic bcm2835_mmal_vchiq(C) ecc videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev vc4 cec vc_sm_cma(C) mc drm_kms_helper drm rpivid_mem drm_panel_orientation_quirks snd_soc_core snd_compress snd_pcm_dmaengine syscopyarea sysfillrect sysimgblt fb_sys_fops uio_pdrv_genirq uio sha256_generic libsha256 cfg80211 rfkill uinput snd_bcm2835(C) snd_pcm ipv6 snd_timer snd

[   34.327290] CPU: 1 PID: 3664 Comm: mkswap Tainted: G         C        5.4.75+ #1

[   34.327328] Hardware name: BCM2711

[   34.327359] PC is at zs_map_object+0xcc/0x248 [zsmalloc]

[   34.327393] LR is at zs_map_object+0x60/0x248 [zsmalloc]

[   34.327432] pc : [<bf30d65c>]    lr : [<bf30d5f0>]    psr: 40000013

[   34.327471] sp : ce8f5aa0  ip : ce8f5aa0  fp : ce8f5aec

[   34.327498] r10: 00000000  r9 : 00000000  r8 : d5c00000

[   34.327533] r7 : d87f3bc0  r6 : c1204f88  r5 : d031d800  r4 : 02bf3bc0

[   34.327569] r3 : 00000000  r2 : c1349340  r1 : 00000000  r0 : 00000001

[   34.327608] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user

[   34.327646] Control: 30c5383d  Table: 0e31cbc0  DAC: 55555555

[   34.327680] Process mkswap (pid: 3664, stack limit = 0x32909d8e)

[   34.327711] Stack: (0xce8f5aa0 to 0xce8f6000)

[   34.327742] 5aa0: d1052b00 cdb0e000 0000280a 00000002 00000000 cf5b8400 00000000 eacbb6a2

[   34.327787] 5ac0: 00000000 00000000 cf5b8400 cdb0e000 ce31ce80 00000000 bf4203c0 cd9cd000

[   34.327827] 5ae0: ce8f5b3c ce8f5af0 bf41db48 bf30d59c 00000001 c1204f88 cda00000 fffefc8d

[   34.327864] 5b00: d5e8d670 00000000 00000049 eacbb6a2 00400007 cf83f600 cf5b8400 00001000

[   34.327906] 5b20: 00000000 00000000 00001000 00001000 ce8f5b9c ce8f5b40 bf41e4d4 bf41d7a8

[   34.327947] 5b40: 00000001 cf83f600 c06fd7ac bf420198 00000000 00000000 00000000 c1204f88

[   34.327987] 5b60: d5e8d670 00001000 00000000 eacbb6a2 c020dc30 c1204f88 ce8f5ba4 ce8f4020

[   34.328034] 5b80: ce8f5ba0 cf83f600 cda00000 ffffffff ce8f5be4 ce8f5ba0 c06fd934 bf41e32c

[   34.328075] 5ba0: ce8f5bbc 00000000 00000000 00000000 00000000 eacbb6a2 c0353d00 c1204f88

[   34.328112] 5bc0: cf83f600 00000008 00000800 ce8f5e60 00000000 d5e8d670 ce8f5c54 ce8f5be8

[   34.328155] 5be0: c06fdba8 c06fd83c ce8f5c1c c06f4cdc 00000000 c1204f88 cf83f600 00001000

[   34.328199] 5c00: d5e8d670 c041a738 00000000 00040000 00000000 cf83f600 00000800 ce8f5e60

[   34.328262] 5c20: 00000000 eacbb6a2 ce8f5c54 d176c040 cf83f600 00000801 00000800 ce8f5e60

[   34.328307] 5c40: 00000000 d5e8d670 ce8f5c7c ce8f5c58 c041a924 c06fdb60 00000001 d176c040

[   34.328354] 5c60: d176c040 00000800 d1785708 ce8f5e60 ce8f5ce4 ce8f5c80 c041ac04 c041a79c

[   34.328397] 5c80: ce8f5e60 c0373850 ce8f5ccc c041eec4 00001000 c1204f88 c0419120 ce8f5e60

[   34.328435] 5ca0: 00000800 d1785708 00007fff 00000000 c0358c98 eacbb6a2 20000013 d1785708

[   34.328481] 5cc0: 00000000 00000000 d5e8d670 ce8f5e60 c041eec4 00000000 ce8f5d1c ce8f5ce8

[   34.328540] 5ce0: c041b0e8 c041a960 c0419120 00000001 00000000 d1785810 00000000 ce8f5d90

[   34.328581] 5d00: d1785810 00000001 ce8f5e60 00000000 ce8f5d2c ce8f5d20 c041e510 c041b014

[   34.328620] 5d20: ce8f5d44 ce8f5d30 c0357ac0 c041e4f8 d5e8d670 00000000 ce8f5dfc ce8f5d48

[   34.328663] 5d40: c0358f94 c0357aa8 00000002 00000400 ce8f5d7c 00000001 c1204f88 c027bf8c

[   34.328707] 5d60: c0419a78 00000000 c12b1110 c1204fb4 ce8f5dac d1785810 c0357a9c 00000002

[   34.328748] 5d80: ce8f4008 ffffffff ffffffff d1780001 d5e8d670 00000400 00000c00 c0c0c948

[   34.328788] 5da0: ce8f5e14 ce8f5db0 c034cd28 c035a3e0 00000c00 00000c00 d5e8d670 0dd409c6

[   34.328847] 5dc0: ce8f5dec ce8f5dd0 c020dc30 eacbb6a2 c020c7e8 d1785810 c1204f88 ce8f5e60

[   34.328888] 5de0: 7fffffff 00000000 00000000 00000001 ce8f5e34 ce8f5e00 c0359238 c0358d48

[   34.328948] 5e00: ce8f5e00 ce8f5e00 ce8f5e08 ce8f5e08 00000000 eacbb6a2 ce8f5e44 ce8f5e60

[   34.329011] 5e20: d1785810 d1785708 ce8f5e44 ce8f5e38 c041e4c0 c03591e0 ce8f5e5c ce8f5e48

[   34.329052] 5e40: c035b754 c041e4b4 d1785810 c1204f88 ce8f5ed4 ce8f5e60 c034f900 c035b730

[   34.330474] 5e60: 7fffffff 00000000 00000000 00000000 ffffffff 7fffffff 00000001 00000000

[   34.331855] 5e80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[   34.333151] 5ea0: ce8f5f2c eacbb6a2 c03d3d80 ffffffff d1785810 ce848000 00000000 00000000

[   34.333160] 5ec0: 00000000 00000076 ce8f5f0c ce8f5ed8 c0350154 c034f81c ffffffff 7fffffff

[   34.333164] 5ee0: 00000001 ceaf5760 00000000 ffffffff 7fffffff d1785708 c02011c4 ce8f4000

[   34.333168] 5f00: ce8f5f34 ce8f5f10 c041ddb0 c0350100 ffffffff 7fffffff ce8f4000 ce848000

[   34.333172] 5f20: 00000000 00000000 ce8f5f64 ce8f5f38 c041214c c041dd90 ffffffff 7fffffff

[   34.333176] 5f40: 00000000 c03f8144 ce848000 ce848000 00000000 00000076 ce8f5f94 ce8f5f68

[   34.333182] 5f60: c0412204 c04120f0 ffffffff 7fffffff 00000000 00000074 00617768 bed34758

[   34.333186] 5f80: 00000003 00617368 ce8f5fa4 ce8f5f98 c0412510 c04121c4 00000000 ce8f5fa8

[   34.333190] 5fa0: c0201000 c0412500 bed34758 00000003 00000003 b6efd828 00000074 00000000

[   34.333194] 5fc0: bed34758 00000003 00617368 00000076 07fff000 00000000 00000000 004468c4

[   34.333198] 5fe0: 00000076 bed34728 b6e9cbff b6e1e746 80000030 00000003 00000000 00000000

[   34.333201] Backtrace: 

[   34.333224] [<bf30d590>] (zs_map_object [zsmalloc]) from [<bf41db48>] (idle_store+0x590/0xc0c [zram])

[   34.333229]  r10:cd9cd000 r9:bf4203c0 r8:00000000 r7:ce31ce80 r6:cdb0e000 r5:cf5b8400

[   34.333232]  r4:00000000

[   34.333242] [<bf41d79c>] (idle_store [zram]) from [<bf41e4d4>] (zram_make_request+0x1b4/0x47c [zram])

[   34.333247]  r10:00001000 r9:00001000 r8:00000000 r7:00000000 r6:00001000 r5:cf5b8400

[   34.333251]  r4:cf83f600

[   34.333265] [<bf41e320>] (zram_make_request [zram]) from [<c06fd934>] (generic_make_request+0x104/0x324)

[   34.333270]  r10:ffffffff r9:cda00000 r8:cf83f600 r7:ce8f5ba0 r6:ce8f4020 r5:ce8f5ba4

[   34.333272]  r4:c1204f88

[   34.333277] [<c06fd830>] (generic_make_request) from [<c06fdba8>] (submit_bio+0x54/0x1ec)

[   34.333282]  r10:d5e8d670 r9:00000000 r8:ce8f5e60 r7:00000800 r6:00000008 r5:cf83f600

[   34.333284]  r4:c1204f88

[   34.333291] [<c06fdb54>] (submit_bio) from [<c041a924>] (submit_bh_wbc+0x194/0x1c4)

[   34.333297]  r10:d5e8d670 r9:00000000 r8:ce8f5e60 r7:00000800 r6:00000801 r5:cf83f600

[   34.333302]  r4:d176c040

[   34.333312] [<c041a790>] (submit_bh_wbc) from [<c041ac04>] (__block_write_full_page+0x2b0/0x5b4)

[   34.333317]  r9:ce8f5e60 r8:d1785708 r7:00000800 r6:d176c040 r5:d176c040 r4:00000001

[   34.333323] [<c041a954>] (__block_write_full_page) from [<c041b0e8>] (block_write_full_page+0xe0/0xec)

[   34.333327]  r10:00000000 r9:c041eec4 r8:ce8f5e60 r7:d5e8d670 r6:00000000 r5:00000000

[   34.333329]  r4:d1785708

[   34.333336] [<c041b008>] (block_write_full_page) from [<c041e510>] (blkdev_writepage+0x24/0x28)

[   34.333340]  r10:00000000 r9:ce8f5e60 r8:00000001 r7:d1785810 r6:ce8f5d90 r5:00000000

[   34.333342]  r4:d1785810

[   34.333351] [<c041e4ec>] (blkdev_writepage) from [<c0357ac0>] (__writepage+0x24/0x58)

[   34.333359] [<c0357a9c>] (__writepage) from [<c0358f94>] (write_cache_pages+0x258/0x498)

[   34.333363]  r5:00000000 r4:d5e8d670

[   34.333369] [<c0358d3c>] (write_cache_pages) from [<c0359238>] (generic_writepages+0x64/0x90)

[   34.333374]  r10:00000001 r9:00000000 r8:00000000 r7:7fffffff r6:ce8f5e60 r5:c1204f88

[   34.333379]  r4:d1785810

[   34.333386] [<c03591d4>] (generic_writepages) from [<c041e4c0>] (blkdev_writepages+0x18/0x1c)

[   34.333389]  r6:d1785708 r5:d1785810 r4:ce8f5e60

[   34.333395] [<c041e4a8>] (blkdev_writepages) from [<c035b754>] (do_writepages+0x30/0x9c)

[   34.333403] [<c035b724>] (do_writepages) from [<c034f900>] (__filemap_fdatawrite_range+0xf0/0x12c)

[   34.333406]  r5:c1204f88 r4:d1785810

[   34.333413] [<c034f810>] (__filemap_fdatawrite_range) from [<c0350154>] (file_write_and_wait_range+0x60/0xb4)

[   34.333418]  r10:00000076 r9:00000000 r8:00000000 r7:00000000 r6:ce848000 r5:d1785810

[   34.333420]  r4:ffffffff

[   34.333427] [<c03500f4>] (file_write_and_wait_range) from [<c041ddb0>] (blkdev_fsync+0x2c/0x54)

[   34.333431]  r9:ce8f4000 r8:c02011c4 r6:d1785708 r5:7fffffff r4:ffffffff

[   34.333438] [<c041dd84>] (blkdev_fsync) from [<c041214c>] (vfs_fsync_range+0x68/0x98)

[   34.333441]  r6:00000000 r5:00000000 r4:ce848000

[   34.333448] [<c04120e4>] (vfs_fsync_range) from [<c0412204>] (do_fsync+0x4c/0x74)

[   34.333451]  r7:00000076 r6:00000000 r5:ce848000 r4:ce848000

[   34.333457] [<c04121b8>] (do_fsync) from [<c0412510>] (sys_fsync+0x1c/0x20)

[   34.333460]  r6:00617368 r5:00000003 r4:bed34758

[   34.333468] [<c04124f4>] (sys_fsync) from [<c0201000>] (ret_fast_syscall+0x0/0x28)

[   34.333471] Exception stack(0xce8f5fa8 to 0xce8f5ff0)

[   34.333475] 5fa0:                   bed34758 00000003 00000003 b6efd828 00000074 00000000

[   34.333479] 5fc0: bed34758 00000003 00617368 00000076 07fff000 00000000 00000000 004468c4

[   34.333482] 5fe0: 00000076 bed34728 b6e9cbff b6e1e746

[   34.333488] Code: e0844084 e1a04204 e0887004 e597a018 (e59a3000) 

[   34.333562] ---[ end trace 7b06f43ad19b6d67 ]---

[   34.333569] note: mkswap[3664] exited with preempt_count 2

My Rpi4 is 8GB version... Maybe this is the problem?

This is it
On a Rpi4 with 4GB RAM, my backup is running fine !!

Too bad.... backup finished with error

Terminal

...
Cloning root/@, 1347211523 of 1360819721, 99% done
Cloning subvolume root snapshot @ failed
Operation failed with error E_COPY_DATA!