Bug 2053936 - [5.14 regression] BUG: unable to handle page fault while running badblocks (fsck.ext4 -c) on a raid5 md array
Summary: [5.14 regression] BUG: unable to handle page fault while running badblocks (f...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 35
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-02-13 11:29 UTC by Dominik 'Rathann' Mierzejewski
Modified: 2022-02-14 10:37 UTC (History)
18 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed:
Type: Bug


Attachments (Terms of Use)
kernel-5.16.8 dmesg (91.81 KB, text/plain)
2022-02-13 11:29 UTC, Dominik 'Rathann' Mierzejewski
no flags Details


Links
System ID Private Priority Status Summary Last Updated
Linux Kernel 215605 0 None None None 2022-02-14 10:37:34 UTC

Description Dominik 'Rathann' Mierzejewski 2022-02-13 11:29:54 UTC
Created attachment 1860875 [details]
kernel-5.16.8 dmesg

1. Please describe the problem:
I'm experiencing kernel crash when running badblocks (fsck.ext4 -c) on a raid5 md array in my NAS box (Thecus N5550):
[  720.911993] kernel: BUG: unable to handle page fault for address: ffffdbc681023bc8
[  720.912073] kernel: #PF: supervisor read access in kernel mode
[  720.912120] kernel: #PF: error_code(0x0000) - not-present page
[  720.912166] kernel: PGD 11ffc6067 P4D 11ffc6067 PUD 0 
[  720.912213] kernel: Oops: 0000 [#1] PREEMPT SMP NOPTI
[  720.912256] kernel: CPU: 1 PID: 1406 Comm: badblocks Not tainted 5.16.8-200.fc35.x86_64 #1
[  720.912321] kernel: Hardware name: Intel Corporation Milstead Platform/Granite Well, BIOS CDV W Series 05 08/27/2015
[  720.912400] kernel: RIP: 0010:kfree+0x58/0x3e0
[  720.912449] kernel: Code: 80 4c 01 e5 0f 82 84 03 00 00 48 c7 c0 00 00 00 80 48 2b 05 4a 96 3b 01 48 01 c5 48 c1 ed 0c 48 c1 e5 06 48 03 2d 28 96 3b 01 <48> 8b 45 08 48 8d 50 ff a8 01 48 0f 45 ea 4
8 8b 55 08 48 8d 42 ff
[  720.912598] kernel: RSP: 0018:ffff9db4008efaf8 EFLAGS: 00010286
[  720.912648] kernel: RAX: 00006d7bc0000000 RBX: ffff9284c5214800 RCX: ffff9284c3758ff8
[  720.912708] kernel: RDX: ffff9283c1102740 RSI: ffffffffc07af091 RDI: ffff9db4008efd58
[  720.912767] kernel: RBP: ffffdbc681023bc0 R08: ffff9db4008efb88 R09: ffff9284c3759000
[  720.912826] kernel: R10: 0000000000000028 R11: ffff9284c213db48 R12: ffff9db4008efd58
[  720.912885] kernel: R13: ffff9284c213da00 R14: ffff9284c375f000 R15: ffff9db4008efd58
[  720.912945] kernel: FS:  00007f73e6669740(0000) GS:ffff9284dbc80000(0000) knlGS:0000000000000000
[  720.913012] kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  720.913062] kernel: CR2: ffffdbc681023bc8 CR3: 000000005c2cc000 CR4: 00000000000006e0
[  720.913122] kernel: Call Trace:
[  720.913150] kernel:  <TASK>
[  720.913179] kernel:  raid5_make_request+0xb31/0xb90 [raid456]
[  720.913247] kernel:  ? do_wait_intr_irq+0xa0/0xa0
[  720.913292] kernel:  ? __blk_queue_split+0x30a/0x470
[  720.913339] kernel:  md_handle_request+0x119/0x180
[  720.913386] kernel:  md_submit_bio+0x67/0xa0
[  720.913425] kernel:  __submit_bio_fops+0x91/0x160
[  720.913468] kernel:  submit_bio_noacct+0xd7/0x2c0
[  720.913510] kernel:  __blkdev_direct_IO_simple+0x198/0x290
[  720.913576] kernel:  ? __fpu_restore_sig+0x193/0x570
[  720.913623] kernel:  ? sysvec_apic_timer_interrupt+0xaf/0xd0
[  720.913676] kernel:  ? __blkdev_direct_IO_simple+0x290/0x290
[  720.913728] kernel:  generic_file_read_iter+0x9b/0x160
[  720.913775] kernel:  new_sync_read+0x105/0x180
[  720.913820] kernel:  vfs_read+0xf1/0x190
[  720.913858] kernel:  ksys_read+0x4f/0xc0
[  720.913896] kernel:  do_syscall_64+0x38/0x90
[  720.913936] kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  720.913985] kernel: RIP: 0033:0x7f73e676d772
[  720.914024] kernel: Code: c0 e9 b2 fe ff ff 50 48 8d 3d da 2e 0c 00 e8 b5 f9 01 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24
[  720.914166] kernel: RSP: 002b:00007fff1b8fcbb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  720.914231] kernel: RAX: ffffffffffffffda RBX: 0000000000000040 RCX: 00007f73e676d772
[  720.917149] kernel: RDX: 0000000000040000 RSI: 00007f73e65d3000 RDI: 0000000000000004
[  720.920078] kernel: RBP: 0000000000001000 R08: 00000000015105c0 R09: 0000000000000080
[  720.922980] kernel: R10: 00007fff1b8fca00 R11: 0000000000000246 R12: 00000015105c0000
[  720.925875] kernel: R13: 0000000000000004 R14: 00007f73e65d3000 R15: 0000000000040000
[  720.928795] kernel:  </TASK>
[  720.931704] kernel: Modules linked in: sctp ip6_udp_tunnel udp_tunnel rpcrdma rdma_cm iw_cm ib_cm ib_core sit tunnel4 ip_tunnel rfkill ipt_REJECT nf_reject_ipv4 iptable_filter xt_nat iptable_nat nf_nat iptable_mangle nf_conntrack_pptp xt_CT iptable_raw xt_multiport xt_set ip6t_REJECT nf_reject_ipv6 xt_LOG nf_log_syslog xt_limit xt_state xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6table_filter ip6_tables ip_set_hash_netport ip_set_hash_net ip_set drivetemp it87 nfnetlink hwmon_vid vfat fat iTCO_wdt intel_pmc_bxt iTCO_vendor_support at24 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx intel_powerclamp raid1 coretemp snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_usb_audio i2c_i801 gma500_gfx i2c_smbus snd_usbmidi_lib joydev snd_hwdep snd_rawmidi snd_seq_device mc snd_pcm lpc_ich i2c_algo_bit snd_timer drm_kms_helper snd cec soundcore nfsd auth_rpcgss
[  720.931885] kernel:  nfs_acl lockd grace drm fuse sunrpc zram ip_tables hid_logitech_hidpp serio_raw r8152 sata_sil24 video mii hid_jabra e1000e hid_logitech_dj
[  720.952122] kernel: CR2: ffffdbc681023bc8
[  720.955651] kernel: ---[ end trace de2c3d5b971ae71d ]---
[  720.959186] kernel: RIP: 0010:kfree+0x58/0x3e0
[  720.962723] kernel: Code: 80 4c 01 e5 0f 82 84 03 00 00 48 c7 c0 00 00 00 80 48 2b 05 4a 96 3b 01 48 01 c5 48 c1 ed 0c 48 c1 e5 06 48 03 2d 28 96 3b 01 <48> 8b 45 08 48 8d 50 ff a8 01 48 0f 45 ea 48 8b 55 08 48 8d 42 ff
[  720.966472] kernel: RSP: 0018:ffff9db4008efaf8 EFLAGS: 00010286
[  720.970238] kernel: RAX: 00006d7bc0000000 RBX: ffff9284c5214800 RCX: ffff9284c3758ff8
[  720.973993] kernel: RDX: ffff9283c1102740 RSI: ffffffffc07af091 RDI: ffff9db4008efd58
[  720.977723] kernel: RBP: ffffdbc681023bc0 R08: ffff9db4008efb88 R09: ffff9284c3759000
[  720.981464] kernel: R10: 0000000000000028 R11: ffff9284c213db48 R12: ffff9db4008efd58
[  720.985228] kernel: R13: ffff9284c213da00 R14: ffff9284c375f000 R15: ffff9db4008efd58
[  720.988995] kernel: FS:  00007f73e6669740(0000) GS:ffff9284dbc80000(0000) knlGS:0000000000000000
[  720.992774] kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  720.996535] kernel: CR2: ffffdbc681023bc8 CR3: 000000005c2cc000 CR4: 00000000000006e0

There was a crash earlier which caused the array to become degraded, but I wasn't able to capture the backtrace due to journal corruption. After resyncing the array I tried running fsck on the filesystem and it's causing a kernel crash each time.

2. What is the Version-Release number of the kernel:
5.16.8-200.fc35.x86_64

3. Did it work previously in Fedora? If so, what kernel version did the issue
   *first* appear?  Old kernels are available for download at
   https://koji.fedoraproject.org/koji/packageinfo?packageID=8 :
Unknown. This is the first time I ran badblocks on the array.

4. Can you reproduce this issue? If so, please provide the steps to reproduce
   the issue below:
Yes.
1. fsck.ext4 -c -v /dev/md127
2. crash

5. Does this problem occur with the latest Rawhide kernel? To install the
   Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by
   ``sudo dnf update --enablerepo=rawhide kernel``:
Unknown. I'll check both earlier and later kernels.

6. Are you running any modules that not shipped with directly Fedora's kernel?:
No.

7. Please attach the kernel logs. You can get the complete kernel log
   for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the
   issue occurred on a previous boot, use the journalctl ``-b`` flag.
Attached.

Comment 1 Dominik 'Rathann' Mierzejewski 2022-02-13 19:26:07 UTC
On 5.14.10-300.fc35.x86_64, fsck.ext4 crashes the kernel with:
Feb 13 17:55:06 kernel: general protection fault, probably for non-canonical address 0xef6dfcf53c7d6fc3: 0000 [#1] SMP NOPTI
Feb 13 17:55:06 kernel: CPU: 2 PID: 831 Comm: md126_raid5 Not tainted 5.14.10-300.fc35.x86_64 #1
Feb 13 17:55:06 kernel: Hardware name: Intel Corporation Milstead Platform/Granite Well, BIOS CDV W Series 05 08/27/2015
Feb 13 17:55:06 kernel: RIP: 0010:bio_endio+0x87/0x130
Feb 13 17:55:06 kernel: Code: 02 00 48 8b 45 08 48 85 c0 74 09 0f b7 55 14 f6 c6 01 75 2f 48 81 7d 38 50 48 5e bb 75 38 0f b6 45 1a 48 8b 5d 40 84 c0 74 09 <80> 7b 1a 00 75 03 88 43 1a 48 89 ef 48 89 dd e8 d5 fe ff ff e9 6a
Feb 13 17:55:06 kernel: RSP: 0000:ffffa5bb80597b48 EFLAGS: 00010206
Feb 13 17:55:06 kernel: RAX: 000000000000000a RBX: ef6dfcf53c7d6fa9 RCX: ffff92b840865b50
Feb 13 17:55:06 kernel: RDX: 0000000000000082 RSI: ffff92b8497f46c0 RDI: ffff92b84881f180
Feb 13 17:55:06 kernel: RBP: ffff92b8497f46c0 R08: 0000000000000001 R09: 0000000000000000
Feb 13 17:55:06 kernel: R10: ffff92b74a722c01 R11: 0000000000000001 R12: 0000000000000000
Feb 13 17:55:06 kernel: R13: 0000000000000000 R14: ffff92b74a722cd0 R15: ffff92b844748860
Feb 13 17:55:06 kernel: FS:  0000000000000000(0000) GS:ffff92b85bd00000(0000) knlGS:0000000000000000
Feb 13 17:55:06 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Feb 13 17:55:06 kernel: CR2: 0000557d787a2028 CR3: 000000003c194000 CR4: 00000000000006e0
Feb 13 17:55:06 kernel: Call Trace:
Feb 13 17:55:06 kernel:  ops_complete_biofill+0x98/0xe0 [raid456]
Feb 13 17:55:06 kernel:  async_trigger_callback+0x7d/0xc1 [async_tx]
Feb 13 17:55:06 kernel:  raid_run_ops+0x98c/0x15b0 [raid456]
Feb 13 17:55:06 kernel:  ? handle_stripe_clean_event+0x400/0x400 [raid456]
Feb 13 17:55:06 kernel:  handle_stripe+0xe91/0x1dc0 [raid456]
Feb 13 17:55:06 kernel:  handle_active_stripes.constprop.0+0x390/0x560 [raid456]
Feb 13 17:55:06 kernel:  raid5d+0x39d/0x5d0 [raid456]
Feb 13 17:55:06 kernel:  ? prepare_to_wait_event+0x5d/0x170
Feb 13 17:55:06 kernel:  md_thread+0x98/0x140
Feb 13 17:55:06 kernel:  ? finish_wait+0x80/0x80
Feb 13 17:55:06 kernel:  ? md_write_inc+0x50/0x50
Feb 13 17:55:06 kernel:  kthread+0x124/0x150
Feb 13 17:55:06 kernel:  ? set_kthread_struct+0x40/0x40
Feb 13 17:55:06 kernel:  ret_from_fork+0x1f/0x30
Feb 13 17:55:06 kernel: Modules linked in: rpcrdma rdma_cm iw_cm ib_cm ib_core rfkill ip6t_REJECT nf_reject_ipv6 ip6table_filter ip6_tables xt_set ipt_REJECT nf_reject_ipv4 xt_LOG nf_log_syslog xt_limit xt_multiport xt_state xt_conntrack iptable_filter xt_nat iptable_nat nf_nat iptable_mangle nf_conntrack_pptp xt_CT nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_raw ip_set_hash_netport ip_set_hash_net ip_set drivetemp it87 nfnetlink hwmon_vid vfat fat snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi iTCO_wdt snd_hda_intel intel_pmc_bxt snd_intel_dspcfg iTCO_vendor_support raid456 snd_intel_sdw_acpi snd_hda_codec async_raid6_recov at24 async_memcpy async_pq async_xor async_tx snd_hda_core gma500_gfx snd_hwdep i2c_algo_bit drm_kms_helper snd_pcm intel_powerclamp i2c_i801 snd_timer coretemp i2c_smbus snd cec soundcore lpc_ich nfsd auth_rpcgss nfs_acl lockd drm grace fuse sunrpc ip_tables raid1 serio_raw video sata_sil24 e1000e
Feb 13 17:55:06 kernel: ---[ end trace 97447bed31e596e0 ]---
Feb 13 17:55:06 kernel: RIP: 0010:bio_endio+0x87/0x130
Feb 13 17:55:06 kernel: Code: 02 00 48 8b 45 08 48 85 c0 74 09 0f b7 55 14 f6 c6 01 75 2f 48 81 7d 38 50 48 5e bb 75 38 0f b6 45 1a 48 8b 5d 40 84 c0 74 09 <80> 7b 1a 00 75 03 88 43 1a 48 89 ef 48 89 dd e8 d5 fe ff ff e9 6a
Feb 13 17:55:06 kernel: RSP: 0000:ffffa5bb80597b48 EFLAGS: 00010206
Feb 13 17:55:06 kernel: RAX: 000000000000000a RBX: ef6dfcf53c7d6fa9 RCX: ffff92b840865b50
Feb 13 17:55:06 kernel: RDX: 0000000000000082 RSI: ffff92b8497f46c0 RDI: ffff92b84881f180
Feb 13 17:55:06 kernel: RBP: ffff92b8497f46c0 R08: 0000000000000001 R09: 0000000000000000
Feb 13 17:55:06 kernel: R10: ffff92b74a722c01 R11: 0000000000000001 R12: 0000000000000000
Feb 13 17:55:06 kernel: R13: 0000000000000000 R14: ffff92b74a722cd0 R15: ffff92b844748860
Feb 13 17:55:06 kernel: FS:  0000000000000000(0000) GS:ffff92b85bd00000(0000) knlGS:0000000000000000
Feb 13 17:55:06 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Feb 13 17:55:06 kernel: CR2: 0000557d787a2028 CR3: 000000003c194000 CR4: 00000000000006e0
Feb 13 17:55:06 kernel: ------------[ cut here ]------------
Feb 13 17:55:06 kernel: WARNING: CPU: 2 PID: 831 at kernel/exit.c:739 do_exit+0x37/0xa90
Feb 13 17:55:06 kernel: Modules linked in: rpcrdma rdma_cm iw_cm ib_cm ib_core rfkill ip6t_REJECT nf_reject_ipv6 ip6table_filter ip6_tables xt_set ipt_REJECT nf_reject_ipv4 xt_LOG nf_log_syslog xt_limit xt_multiport xt_state xt_conntrack iptable_filter xt_nat iptable_nat nf_nat iptable_mangle nf_conntrack_pptp xt_CT nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_raw ip_set_hash_netport ip_set_hash_net ip_set drivetemp it87 nfnetlink hwmon_vid vfat fat snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi iTCO_wdt snd_hda_intel intel_pmc_bxt snd_intel_dspcfg iTCO_vendor_support raid456 snd_intel_sdw_acpi snd_hda_codec async_raid6_recov at24 async_memcpy async_pq async_xor async_tx snd_hda_core gma500_gfx snd_hwdep i2c_algo_bit drm_kms_helper snd_pcm intel_powerclamp i2c_i801 snd_timer coretemp i2c_smbus snd cec soundcore lpc_ich nfsd auth_rpcgss nfs_acl lockd drm grace fuse sunrpc ip_tables raid1 serio_raw video sata_sil24 e1000e
Feb 13 17:55:06 kernel: CPU: 2 PID: 831 Comm: md126_raid5 Tainted: G      D           5.14.10-300.fc35.x86_64 #1
Feb 13 17:55:06 kernel: Hardware name: Intel Corporation Milstead Platform/Granite Well, BIOS CDV W Series 05 08/27/2015
Feb 13 17:55:06 kernel: RIP: 0010:do_exit+0x37/0xa90
Feb 13 17:55:06 kernel: Code: 55 48 89 fd 53 65 48 8b 1c 25 c0 7b 01 00 48 83 ec 28 48 8b 83 a8 0c 00 00 48 85 c0 74 0e 48 8b 10 48 39 d0 0f 84 56 04 00 00 <0f> 0b 65 8b 0d a0 2c f3 44 89 c8 25 00 ff ff 00 89 44 24 0c 0f 85
Feb 13 17:55:06 kernel: RSP: 0000:ffffa5bb80597ef8 EFLAGS: 00010212
Feb 13 17:55:06 kernel: RAX: ffffa5bb80597e50 RBX: ffff92b8437d8000 RCX: 0000000000000000
Feb 13 17:55:06 kernel: RDX: ffff92b844217548 RSI: ffff92b85bd18a00 RDI: 000000000000000b
Feb 13 17:55:06 kernel: RBP: 000000000000000b R08: 0000000000000000 R09: ffffa5bb805977a0
Feb 13 17:55:06 kernel: R10: ffffa5bb80597798 R11: ffffffffbcf47468 R12: 000000000000000b
Feb 13 17:55:06 kernel: R13: 0000000000000000 R14: ffff92b8437d8000 R15: 0000000000000000
Feb 13 17:55:06 kernel: FS:  0000000000000000(0000) GS:ffff92b85bd00000(0000) knlGS:0000000000000000
Feb 13 17:55:06 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Feb 13 17:55:06 kernel: CR2: 0000557d787a2028 CR3: 000000003c194000 CR4: 00000000000006e0
Feb 13 17:55:06 kernel: Call Trace:
Feb 13 17:55:06 kernel:  ? kthread+0x124/0x150
Feb 13 17:55:06 kernel:  rewind_stack_do_exit+0x17/0x20
Feb 13 17:55:06 kernel: RIP: 0000:0x0
Feb 13 17:55:06 kernel: Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
Feb 13 17:55:06 kernel: RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
Feb 13 17:55:06 kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
Feb 13 17:55:06 kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
Feb 13 17:55:06 kernel: RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
Feb 13 17:55:06 kernel: R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
Feb 13 17:55:06 kernel: R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Feb 13 17:55:06 kernel: ---[ end trace 97447bed31e596e1 ]---

Comment 2 Dominik 'Rathann' Mierzejewski 2022-02-13 22:54:08 UTC
I went back to 5.13.19-200.fc34.x86_64 and I'm not getting a kernel crash. badblocks has been running for 20+ minutes with no issues (found some bad blocks though). This seems to be 5.14 regression, then.

Comment 3 Dominik 'Rathann' Mierzejewski 2022-02-14 10:37:35 UTC
badblocks running for 12 hours without a crash now. Reported upstream as well.


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