Bug#995369: linux-image-5.14.0-1-amd64: "kernel BUG at block/bio.c:52!"
Package: linux-image-5.14.0-1-amd64
Version: 5.14.6-2
Severity: important
Dear Maintainer,
after upgrade to kernel 5.14, the computer went unstable, various processes hanging
at file access, dubious timeout.
In kern.log, the following message appears a number of times:
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228648] ------------[ cut here ]------------
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228651] kernel BUG at block/bio.c:52!
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228659] invalid opcode: 0000 [#1] SMP PTI
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228662] CPU: 1 PID: 53439 Comm: kworker/u8:13 Tainted: G I 5.14.0-1-amd64 #1 Debian 5.14.6-2
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228664] Hardware name: Dell Inc. PowerEdge T30/07T4MC, BIOS 1.5.0 10/28/2020
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228666] Workqueue: writeback wb_workfn (flush-253:2)
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228672] RIP: 0010:biovec_slab.part.0+0x5/0x10
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228675] Code: d1 65 03 00 48 83 3b 00 74 08 48 89 df e8 e3 fe ff ff 48 c7 03 00 00 00 00 5b c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 83 7f 40 00 75
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228677] RSP: 0018:ffffbcaf47863768 EFLAGS: 00010202
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228679] RAX: 00000000000000bf RBX: ffffbcaf4786379c RCX: 00000000000000c0
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228680] RDX: 0000000000000c00 RSI: ffffbcaf4786379c RDI: ffff9a548a507438
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228682] RBP: 0000000000000c00 R08: ffff9a548a507438 R09: ffff9a541a165480
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228683] R10: 0000000000000004 R11: ffff9a548a0f3ef0 R12: ffff9a548a507438
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228684] R13: 0000000000000c00 R14: 0000000000000c00 R15: ffff9a548a5073f0
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228685] FS: 0000000000000000(0000) GS:ffff9a5955c80000(0000) knlGS:0000000000000000
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228688] CR2: 00007fe046e42258 CR3: 0000000410e10006 CR4: 00000000003706e0
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228689] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228690] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228694] bvec_alloc+0x90/0xc0
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228700] raid1_make_request+0x913/0xc40 [raid1]
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228706] md_handle_request+0x122/0x1b0 [md_mod]
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228719] submit_bio_noacct+0x104/0x430
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228725] ext4_bio_write_page+0x30b/0x5b0 [ext4]
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228782] ext4_writepages+0x89c/0xfc0 [ext4]
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228802] do_writepages+0x34/0xc0
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228809] writeback_sb_inodes+0x200/0x470
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228815] wb_writeback+0x1d8/0x290
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228819] ? check_preempt_curr+0x55/0x70
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228824] process_one_work+0x1ec/0x390
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228828] ? process_one_work+0x390/0x390
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228833] ? set_kthread_struct+0x40/0x40
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228839] Modules linked in: sctp ip6_udp_tunnel udp_tunnel cfg80211 rfkill 8021q garp mrp tun veth nf_tables nfnetlink bfq cpufreq_powersave cpufreq_conservative cpufreq_ondemand cpufreq_userspace uinput bridge stp llc binfmt_misc nls_ascii quota_v2 quota_tree nls_cp437 vfat fat snd_hda_codec_hdmi uvcvideo snd_hda_codec_realtek videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_usb_audio snd_hda_codec_generic videobuf2_common ledtrig_audio snd_hda_intel snd_usbmidi_lib intel_rapl_msr intel_rapl_common videodev snd_rawmidi snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec x86_pkg_temp_thermal snd_seq_device intel_powerclamp kvm_intel mc snd_hda_core kvm irqbypass snd_hwdep snd_pcm_oss rapl joydev intel_cstate snd_mixer_oss iTCO_wdt mei_hdcp intel_pmc_bxt mei_wdt intel_uncore snd_pcm iTCO_vendor_support dell_wmi snd_timer sparse_keymap snd dell_smbios dcdbas soundcore watchdog serio_raw mei_me pcspkr dell_wmi_descriptor ee1004 sg evdev mei intel_pch_thermal ie31200_edac
Sep 29 00:00:36 xxxxxxxxxx kernel: [23519.228959] ---[ end trace ab34d149fe4093c9 ]---
The system's harddisk io is setup as MD-managed RAID 1, on top lvm2 using an ATA connected single SSD disk as read cache.
Lacking a 2nd SSD disk, write-through to the disk RAID is configured.
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
backup_linux BackupVG -wi-ao---- <2,15t
MacBack ClientBackVG -wi-ao---- <2,73t
home DataVG Cwi-aoC--- 700,00g [home_cache_cpool] [home_corig] 25,43 1,04 0,00
root DataVG -wi-ao---- 25,00g
var_lxc DataVG Cwi-aoC--- 1,17t [var_lxc_cache_cpool] [var_lxc_corig] 99,98 0,24 16,58
var_native DataVG Cwi-aoC--- 15,00g [var_native_cache_cpool] [var_native_corig] 19,67 1,30 0,00
$ sudo /sbin/dmsetup status DataVG-var_native
0 31457280 cache 8 1662/128000 128 161138/819200 229608 4283 2571004 36801 0 9488 0 3 metadata2 writethrough no_discard_passdown 2 migration_threshold 2048 smq 0 rw -
I'm not aware of having any of the misconfiguration issues mentioned in https://bugzilla.kernel.org/show_bug.cgi?id=213181
-- System Information:
Debian Release: bookworm/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.10.0-8-amd64 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de:en_US
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages linux-image-5.14.0-1-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.140
ii kmod 29-1
ii linux-base 4.6
Versions of packages linux-image-5.14.0-1-amd64 recommends:
ii apparmor 3.0.3-2
ii firmware-linux-free 20200122-1
Versions of packages linux-image-5.14.0-1-amd64 suggests:
ii debian-kernel-handbook 1.0.19
ii grub-efi-amd64 2.04-20
pn linux-doc-5.14 <none>
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