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Bug#947413: marked as done (linux-image-4.19.0-7-amd64: kernel lockup)

Your message dated Thu, 20 Feb 2025 12:46:09 +0100 (CET)
with message-id <20250220114609.BB9A5BE2EE7@eldamar.lan>
and subject line Closing this bug (BTS maintenance for src:linux bugs)
has caused the Debian Bug report #947413,
regarding linux-image-4.19.0-7-amd64: kernel lockup
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
947413: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=947413
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: src:linux
Version: 4.19.87-1

Dear Maintainer,


   * What led up to the situation?

Not sure exactly. Normal operations.

I'll include some facts that I suspect might be relevant:

Most volumes are mounted with the "discard" option. The I/O operations in question seem to have involved /var, which is ext4, mounted with discard.

This looks to me like it *could* be related:

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/block?h=v4.19.91&id=42d72c9d28964fbbaeaa15baf2e7ce418d1c1a0a

When this issue happened I was using mq-deadline, I tried switching to bfq in the process of investigating the possible causes.

I do not yet have a way to reproduce this behavior.

   * What was the outcome of this action?

Dec 25 07:15:57 be1va kernel: [698773.335359] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
Dec 25 07:15:57 be1va kernel: [698773.338614] PGD 0 P4D 0
Dec 25 07:15:57 be1va kernel: [698773.339537] Oops: 0000 [#1] SMP NOPTI
Dec 25 07:15:57 be1va kernel: [698773.340914] CPU: 29 PID: 784 Comm: kworker/29:1H Not tainted 4.19.0-7-amd64 #1 Debian 4.19.87-1
Dec 25 07:15:57 be1va kernel: [698773.344187] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Dec 25 07:15:57 be1va kernel: [698773.347903] Workqueue: kblockd blk_mq_run_work_fn
Dec 25 07:15:57 be1va kernel: [698773.349978] RIP: 0010:rb_next+0x11/0x50
Dec 25 07:15:57 be1va kernel: [698773.351545] Code: 89 ec 48 89 c5 e9 80 fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 8b 0f 48 39 cf 74 39 48 8b 47 08 48 85 c0 74 22 <48> 8b 50 10 48 85 d2 74 0c 48 89 d0 48 8b 50 10 48 85 d2 75 f4 c3
Dec 25 07:15:57 be1va kernel: [698773.357983] RSP: 0018:ffffa075c73bfdb0 EFLAGS: 00010206
Dec 25 07:15:57 be1va kernel: [698773.359782] RAX: 0000000000000018 RBX: ffff901819663e00 RCX: ffffdb8d639239c0
Dec 25 07:15:57 be1va kernel: [698773.362331] RDX: ffff901819663e68 RSI: 0000000000000001 RDI: ffff90181519ea60
Dec 25 07:15:57 be1va kernel: [698773.364686] RBP: ffff90181519ea00 R08: 0000000000000000 R09: 0000000000480020
Dec 25 07:15:57 be1va kernel: [698773.367346] R10: 00000015d519e000 R11: 0000000000000000 R12: ffff901819663e5c
Dec 25 07:15:57 be1va kernel: [698773.369754] R13: 0000000000000001 R14: ffff901819663e10 R15: ffff90181519d6c0
Dec 25 07:15:57 be1va kernel: [698773.372166] FS:  0000000000000000(0000) GS:ffff901827b40000(0000) knlGS:0000000000000000
Dec 25 07:15:57 be1va kernel: [698773.375158] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 25 07:15:57 be1va kernel: [698773.377238] CR2: 0000000000000028 CR3: 00000002df80a002 CR4: 0000000000360ee0
Dec 25 07:15:57 be1va kernel: [698773.379495] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Dec 25 07:15:57 be1va kernel: [698773.382132] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Dec 25 07:15:57 be1va kernel: [698773.384604] Call Trace:
Dec 25 07:15:57 be1va kernel: [698773.385590]  dd_dispatch_request+0x15f/0x210
Dec 25 07:15:57 be1va kernel: [698773.387083]  blk_mq_do_dispatch_sched+0xc7/0x120
Dec 25 07:15:57 be1va kernel: [698773.388752]  blk_mq_sched_dispatch_requests+0x11e/0x170
Dec 25 07:15:57 be1va kernel: [698773.390857]  __blk_mq_run_hw_queue+0x4e/0xe0
Dec 25 07:15:57 be1va kernel: [698773.392508]  process_one_work+0x1a7/0x3a0
Dec 25 07:15:57 be1va kernel: [698773.393888]  worker_thread+0x30/0x390
Dec 25 07:15:57 be1va kernel: [698773.395354]  ? create_worker+0x1a0/0x1a0
Dec 25 07:15:57 be1va kernel: [698773.396927]  kthread+0x112/0x130
Dec 25 07:15:57 be1va kernel: [698773.398221]  ? kthread_bind+0x30/0x30
Dec 25 07:15:57 be1va kernel: [698773.399943]  ret_from_fork+0x1f/0x40
Dec 25 07:15:57 be1va kernel: [698773.401562] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc sb_edac crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcc_cpufreq virtio_console virtio_balloon sg joydev serio_raw evdev pcspkr button qemu_fw_cfg ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb sd_mod ata_generic virtio_net net_failover virtio_scsi failover crc32c_intel ata_piix uhci_hcd libata ehci_hcd aesni_intel aes_x86_64 virtio_pci crypto_simd scsi_mod usbcore virtio_ring cryptd psmouse glue_helper virtio i2c_piix4 usb_common floppy
Dec 25 07:15:57 be1va kernel: [698773.420978] CR2: 0000000000000028
Dec 25 07:15:57 be1va kernel: [698773.422326] ---[ end trace a1e4f02f504cc7b4 ]---
Dec 25 07:15:57 be1va kernel: [698773.424075] RIP: 0010:rb_next+0x11/0x50
Dec 25 07:15:57 be1va kernel: [698773.425534] Code: 89 ec 48 89 c5 e9 80 fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 8b 0f 48 39 cf 74 39 48 8b 47 08 48 85 c0 74 22 <48> 8b 50 10 48 85 d2 74 0c 48 89 d0 48 8b 50 10 48 85 d2 75 f4 c3
Dec 25 07:15:57 be1va kernel: [698773.433054] RSP: 0018:ffffa075c73bfdb0 EFLAGS: 00010206
Dec 25 07:15:57 be1va kernel: [698773.434964] RAX: 0000000000000018 RBX: ffff901819663e00 RCX: ffffdb8d639239c0
Dec 25 07:15:57 be1va kernel: [698773.437696] RDX: ffff901819663e68 RSI: 0000000000000001 RDI: ffff90181519ea60
Dec 25 07:15:57 be1va kernel: [698773.440522] RBP: ffff90181519ea00 R08: 0000000000000000 R09: 0000000000480020
Dec 25 07:15:57 be1va kernel: [698773.443030] R10: 00000015d519e000 R11: 0000000000000000 R12: ffff901819663e5c
Dec 25 07:15:57 be1va kernel: [698773.445869] R13: 0000000000000001 R14: ffff901819663e10 R15: ffff90181519d6c0
Dec 25 07:15:57 be1va kernel: [698773.448579] FS:  0000000000000000(0000) GS:ffff901827b40000(0000) knlGS:0000000000000000
Dec 25 07:15:57 be1va kernel: [698773.451640] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 25 07:15:57 be1va kernel: [698773.453748] CR2: 0000000000000028 CR3: 00000002df80a002 CR4: 0000000000360ee0
Dec 25 07:15:57 be1va kernel: [698773.456494] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Dec 25 07:15:57 be1va kernel: [698773.459233] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

<....>

Dec 25 07:16:27 be1va kernel: [698802.699943] rcu: INFO: rcu_sched self-detected stall on CPU
Dec 25 07:16:27 be1va kernel: [698802.704683] rcu:     20-....: (5249 ticks this GP) idle=e76/1/0x4000000000000002 softirq=8337517/8337517 fqs=2398
Dec 25 07:16:27 be1va kernel: [698802.707857] rcu:      (t=5250 jiffies g=209100837 q=9450)
Dec 25 07:16:27 be1va kernel: [698802.709506] NMI backtrace for cpu 20
Dec 25 07:16:27 be1va kernel: [698802.710613] CPU: 20 PID: 2333 Comm: newrelic-infra Tainted: G      D           4.19.0-7-amd64 #1 Debian 4.19.87-1
Dec 25 07:16:27 be1va kernel: [698802.713877] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Dec 25 07:16:27 be1va kernel: [698802.716668] Call Trace:
Dec 25 07:16:27 be1va kernel: [698802.717437]  <IRQ>
Dec 25 07:16:27 be1va kernel: [698802.718090]  dump_stack+0x66/0x90
Dec 25 07:16:27 be1va kernel: [698802.719117]  nmi_cpu_backtrace.cold.4+0x13/0x50
Dec 25 07:16:27 be1va kernel: [698802.720687]  ? lapic_can_unplug_cpu.cold.31+0x37/0x37
Dec 25 07:16:27 be1va kernel: [698802.722200]  nmi_trigger_cpumask_backtrace+0xf9/0xfb
Dec 25 07:16:27 be1va kernel: [698802.723778]  rcu_dump_cpu_stacks+0x9b/0xcb
Dec 25 07:16:27 be1va kernel: [698802.725124]  rcu_check_callbacks.cold.81+0x1db/0x335
Dec 25 07:16:27 be1va kernel: [698802.726679]  ? tick_sched_do_timer+0x60/0x60
Dec 25 07:16:27 be1va kernel: [698802.728168]  update_process_times+0x28/0x60
Dec 25 07:16:27 be1va kernel: [698802.729534]  tick_sched_handle+0x22/0x60
Dec 25 07:16:27 be1va kernel: [698802.730789]  tick_sched_timer+0x37/0x70
Dec 25 07:16:27 be1va kernel: [698802.732131]  __hrtimer_run_queues+0x100/0x280
Dec 25 07:16:27 be1va kernel: [698802.733542]  hrtimer_interrupt+0x100/0x220
Dec 25 07:16:27 be1va kernel: [698802.734783]  smp_apic_timer_interrupt+0x6a/0x140
Dec 25 07:16:27 be1va kernel: [698802.736382]  apic_timer_interrupt+0xf/0x20
Dec 25 07:16:27 be1va kernel: [698802.737597]  </IRQ>
Dec 25 07:16:27 be1va kernel: [698802.738258] RIP: 0010:native_safe_halt+0xe/0x10
Dec 25 07:16:27 be1va kernel: [698802.739790] Code: ff ff 7f c3 65 48 8b 04 25 40 5c 01 00 f0 80 48 02 20 48 8b 00 a8 08 75 c4 eb 80 90 e9 07 00 00 00 0f 00 2d d6 dd 4d 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d c6 dd 4d 00 f4 c3 90 90 0f 1f 44 00
Dec 25 07:16:27 be1va kernel: [698802.745672] RSP: 0018:ffffa075c88d3a78 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
Dec 25 07:16:27 be1va kernel: [698802.748163] RAX: 0000000000000003 RBX: 0000000000000246 RCX: 0000000000000008
Dec 25 07:16:27 be1va kernel: [698802.750299] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff901819663e5c
Dec 25 07:16:27 be1va kernel: [698802.752628] RBP: ffff901827922d00 R08: 0000000000000008 R09: 00000000000000bc
Dec 25 07:16:27 be1va kernel: [698802.754809] R10: 0000000000001000 R11: ffff90181ed39001 R12: 0000000000000000
Dec 25 07:16:27 be1va kernel: [698802.757168] R13: 0000000000000001 R14: 0000000000000100 R15: 0000000000540000
Dec 25 07:16:27 be1va kernel: [698802.759407]  kvm_wait+0x4c/0x50
Dec 25 07:16:27 be1va kernel: [698802.760524]  __pv_queued_spin_lock_slowpath+0x247/0x280
Dec 25 07:16:27 be1va kernel: [698802.762158]  _raw_spin_lock+0x1c/0x20
Dec 25 07:16:27 be1va kernel: [698802.763339]  dd_bio_merge+0x43/0x90
Dec 25 07:16:27 be1va kernel: [698802.764584]  blk_mq_make_request+0xd7/0x530
Dec 25 07:16:27 be1va kernel: [698802.765907]  generic_make_request+0x1a4/0x400
Dec 25 07:16:27 be1va kernel: [698802.767392]  submit_bio+0x45/0x140
Dec 25 07:16:27 be1va kernel: [698802.768619]  ext4_io_submit+0x49/0x60 [ext4]
Dec 25 07:16:27 be1va kernel: [698802.769966]  ext4_writepages+0x7d7/0xf00 [ext4]
Dec 25 07:16:27 be1va kernel: [698802.771396]  ? do_writepages+0x41/0xd0
Dec 25 07:16:27 be1va kernel: [698802.772651]  do_writepages+0x41/0xd0
Dec 25 07:16:27 be1va kernel: [698802.773799]  ? __generic_file_write_iter+0xfe/0x1c0
Dec 25 07:16:27 be1va kernel: [698802.775328]  __filemap_fdatawrite_range+0xcf/0x110
Dec 25 07:16:27 be1va kernel: [698802.776972]  ext4_release_file+0x6c/0xa0 [ext4]
Dec 25 07:16:27 be1va kernel: [698802.778354]  __fput+0xac/0x1e0
Dec 25 07:16:27 be1va kernel: [698802.779306]  task_work_run+0x8a/0xb0
Dec 25 07:16:27 be1va kernel: [698802.780515]  exit_to_usermode_loop+0xeb/0xf0
Dec 25 07:16:27 be1va kernel: [698802.781870]  do_syscall_64+0x10d/0x110
Dec 25 07:16:27 be1va kernel: [698802.783020]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
Dec 25 07:16:27 be1va kernel: [698802.784754] RIP: 0033:0x484834
Dec 25 07:16:27 be1va kernel: [698802.785756] Code: ff ff cc cc cc cc e8 cb 15 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 45 31 d2 45 31 c0 45 31 c9 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
Dec 25 07:16:27 be1va kernel: [698802.791560] RSP: 002b:000000c4204dceb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
Dec 25 07:16:27 be1va kernel: [698802.794062] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000484834
Dec 25 07:16:27 be1va kernel: [698802.796365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
Dec 25 07:16:27 be1va kernel: [698802.798545] RBP: 000000c4204dcf00 R08: 0000000000000000 R09: 0000000000000000
Dec 25 07:16:27 be1va kernel: [698802.800840] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
Dec 25 07:16:27 be1va kernel: [698802.802977] R13: 00000000000000f5 R14: 0000000000000075 R15: 0000000000000004
Dec 25 07:16:52 be1va kernel: [698827.527653] watchdog: BUG: soft lockup - CPU#4 stuck for 22s! [kworker/u64:2:23035]
Dec 25 07:16:52 be1va kernel: [698827.533131] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc sb_edac crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcc_cpufreq virtio_console virtio_balloon sg joydev serio_raw evdev pcspkr button qemu_fw_cfg ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb sd_mod ata_generic virtio_net net_failover virtio_scsi failover crc32c_intel ata_piix uhci_hcd libata ehci_hcd aesni_intel aes_x86_64 virtio_pci crypto_simd scsi_mod usbcore virtio_ring cryptd psmouse glue_helper virtio i2c_piix4 usb_common floppy
Dec 25 07:16:52 be1va kernel: [698827.552209] CPU: 4 PID: 23035 Comm: kworker/u64:2 Tainted: G      D           4.19.0-7-amd64 #1 Debian 4.19.87-1
Dec 25 07:16:52 be1va kernel: [698827.556061] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Dec 25 07:16:52 be1va kernel: [698827.559206] Workqueue: writeback wb_workfn (flush-8:80)
Dec 25 07:16:52 be1va kernel: [698827.561287] RIP: 0010:native_safe_halt+0xe/0x10
Dec 25 07:16:52 be1va kernel: [698827.562973] Code: ff ff 7f c3 65 48 8b 04 25 40 5c 01 00 f0 80 48 02 20 48 8b 00 a8 08 75 c4 eb 80 90 e9 07 00 00 00 0f 00 2d d6 dd 4d 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d c6 dd 4d 00 f4 c3 90 90 0f 1f 44 00
Dec 25 07:16:52 be1va kernel: [698827.569955] RSP: 0018:ffffa075da6e77d8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
Dec 25 07:16:52 be1va kernel: [698827.572802] RAX: 0000000000000001 RBX: 0000000000000246 RCX: 0000000000000000
Dec 25 07:16:52 be1va kernel: [698827.575444] RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffff901827522d44
Dec 25 07:16:52 be1va kernel: [698827.578105] RBP: ffff901827522d00 R08: ffff901815660800 R09: 0000000000000001
Dec 25 07:16:52 be1va kernel: [698827.580762] R10: 0000000000001000 R11: 0000000000026501 R12: ffff901827922d00
Dec 25 07:16:52 be1va kernel: [698827.583508] R13: ffff901827522d44 R14: 0000000000000001 R15: 0000000000140000
Dec 25 07:16:52 be1va kernel: [698827.586173] FS:  0000000000000000(0000) GS:ffff901827500000(0000) knlGS:0000000000000000
Dec 25 07:16:52 be1va kernel: [698827.589201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 25 07:16:52 be1va kernel: [698827.591350] CR2: 00007fcc4bfdf9a0 CR3: 00000002df80a003 CR4: 0000000000360ee0
Dec 25 07:16:52 be1va kernel: [698827.593985] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Dec 25 07:16:52 be1va kernel: [698827.596641] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Dec 25 07:16:52 be1va kernel: [698827.599267] Call Trace:
Dec 25 07:16:52 be1va kernel: [698827.600291]  kvm_wait+0x4c/0x50
Dec 25 07:16:52 be1va kernel: [698827.601437]  __pv_queued_spin_lock_slowpath+0x216/0x280
Dec 25 07:16:52 be1va kernel: [698827.603451]  _raw_spin_lock+0x1c/0x20
Dec 25 07:16:52 be1va kernel: [698827.604943]  dd_bio_merge+0x43/0x90
Dec 25 07:16:52 be1va kernel: [698827.606197]  blk_mq_make_request+0xd7/0x530
Dec 25 07:16:52 be1va kernel: [698827.608005]  generic_make_request+0x1a4/0x400
Dec 25 07:16:52 be1va kernel: [698827.609672]  submit_bio+0x45/0x140
Dec 25 07:16:52 be1va kernel: [698827.610928]  ? guard_bio_eod+0x32/0x100
Dec 25 07:16:52 be1va kernel: [698827.612441]  submit_bh_wbc+0x163/0x190
Dec 25 07:16:52 be1va kernel: [698827.613821]  __block_write_full_page+0x234/0x420
Dec 25 07:16:52 be1va kernel: [698827.615606]  ? check_disk_change+0x60/0x60
Dec 25 07:16:52 be1va kernel: [698827.617238]  ? touch_buffer+0x60/0x60
Dec 25 07:16:52 be1va kernel: [698827.618569]  __writepage+0x19/0x50
Dec 25 07:16:52 be1va kernel: [698827.620037]  write_cache_pages+0x1aa/0x440
Dec 25 07:16:52 be1va kernel: [698827.621513]  ? __wb_calc_thresh+0x130/0x130
Dec 25 07:16:52 be1va kernel: [698827.623065]  generic_writepages+0x56/0x90
Dec 25 07:16:52 be1va kernel: [698827.624737]  do_writepages+0x41/0xd0
Dec 25 07:16:52 be1va kernel: [698827.626099]  __writeback_single_inode+0x3d/0x350
Dec 25 07:16:52 be1va kernel: [698827.627993]  writeback_sb_inodes+0x1e3/0x450
Dec 25 07:16:52 be1va kernel: [698827.629527]  __writeback_inodes_wb+0x5d/0xb0
Dec 25 07:16:52 be1va kernel: [698827.631243]  wb_writeback+0x25f/0x2f0
Dec 25 07:16:52 be1va kernel: [698827.632733]  ? get_nr_inodes+0x35/0x50
Dec 25 07:16:52 be1va kernel: [698827.634208]  ? cpumask_next+0x16/0x20
Dec 25 07:16:52 be1va kernel: [698827.635720]  wb_workfn+0x343/0x400
Dec 25 07:16:52 be1va kernel: [698827.637128]  ? __switch_to+0x8c/0x440
Dec 25 07:16:52 be1va kernel: [698827.638525]  process_one_work+0x1a7/0x3a0
Dec 25 07:16:52 be1va kernel: [698827.640202]  worker_thread+0x30/0x390
Dec 25 07:16:52 be1va kernel: [698827.641576]  ? create_worker+0x1a0/0x1a0
Dec 25 07:16:52 be1va kernel: [698827.643122]  kthread+0x112/0x130
Dec 25 07:16:52 be1va kernel: [698827.644355]  ? kthread_bind+0x30/0x30
Dec 25 07:16:52 be1va kernel: [698827.645771]  ret_from_fork+0x1f/0x40
Dec 25 07:16:52 be1va kernel: [698827.703650] watchdog: BUG: soft lockup - CPU#20 stuck for 23s! [newrelic-infra:2333]
Dec 25 07:16:52 be1va kernel: [698827.706456] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc sb_edac crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcc_cpufreq virtio_console virtio_balloon sg joydev serio_raw evdev pcspkr button qemu_fw_cfg ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb sd_mod ata_generic virtio_net net_failover virtio_scsi failover crc32c_intel ata_piix uhci_hcd libata ehci_hcd aesni_intel aes_x86_64 virtio_pci crypto_simd scsi_mod usbcore virtio_ring cryptd psmouse glue_helper virtio i2c_piix4 usb_common floppy
Dec 25 07:16:52 be1va kernel: [698827.725725] CPU: 20 PID: 2333 Comm: newrelic-infra Tainted: G      D      L    4.19.0-7-amd64 #1 Debian 4.19.87-1
Dec 25 07:16:52 be1va kernel: [698827.729471] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Dec 25 07:16:52 be1va kernel: [698827.732694] RIP: 0010:native_safe_halt+0xe/0x10
Dec 25 07:16:52 be1va kernel: [698827.734274] Code: ff ff 7f c3 65 48 8b 04 25 40 5c 01 00 f0 80 48 02 20 48 8b 00 a8 08 75 c4 eb 80 90 e9 07 00 00 00 0f 00 2d d6 dd 4d 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d c6 dd 4d 00 f4 c3 90 90 0f 1f 44 00
Dec 25 07:16:52 be1va kernel: [698827.741050] RSP: 0018:ffffa075c88d3a78 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
Dec 25 07:16:52 be1va kernel: [698827.743664] RAX: 0000000000000003 RBX: 0000000000000246 RCX: 0000000000000008
Dec 25 07:16:52 be1va kernel: [698827.746213] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff901819663e5c
Dec 25 07:16:52 be1va kernel: [698827.748800] RBP: ffff901827922d00 R08: 0000000000000008 R09: 00000000000000bc
Dec 25 07:16:52 be1va kernel: [698827.751225] R10: 0000000000001000 R11: ffff90181ed39001 R12: 0000000000000000
Dec 25 07:16:52 be1va kernel: [698827.753611] R13: 0000000000000001 R14: 0000000000000100 R15: 0000000000540000
Dec 25 07:16:52 be1va kernel: [698827.756093] FS:  00007fc2e67fc700(0000) GS:ffff901827900000(0000) knlGS:0000000000000000
Dec 25 07:16:52 be1va kernel: [698827.758771] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 25 07:16:52 be1va kernel: [698827.760871] CR2: 00007ff243400000 CR3: 00000015dae4a004 CR4: 0000000000360ee0
Dec 25 07:16:52 be1va kernel: [698827.763394] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Dec 25 07:16:52 be1va kernel: [698827.765846] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Dec 25 07:16:52 be1va kernel: [698827.768471] Call Trace:
Dec 25 07:16:52 be1va kernel: [698827.769343]  kvm_wait+0x4c/0x50
Dec 25 07:16:52 be1va kernel: [698827.770392]  __pv_queued_spin_lock_slowpath+0x247/0x280
Dec 25 07:16:52 be1va kernel: [698827.772321]  _raw_spin_lock+0x1c/0x20
Dec 25 07:16:52 be1va kernel: [698827.773542]  dd_bio_merge+0x43/0x90
Dec 25 07:16:52 be1va kernel: [698827.774748]  blk_mq_make_request+0xd7/0x530
Dec 25 07:16:52 be1va kernel: [698827.776414]  generic_make_request+0x1a4/0x400
Dec 25 07:16:52 be1va kernel: [698827.777848]  submit_bio+0x45/0x140
Dec 25 07:16:52 be1va kernel: [698827.779052]  ext4_io_submit+0x49/0x60 [ext4]
Dec 25 07:16:52 be1va kernel: [698827.780645]  ext4_writepages+0x7d7/0xf00 [ext4]
Dec 25 07:16:52 be1va kernel: [698827.782172]  ? do_writepages+0x41/0xd0
Dec 25 07:16:52 be1va kernel: [698827.783510]  do_writepages+0x41/0xd0
Dec 25 07:16:52 be1va kernel: [698827.784794]  ? __generic_file_write_iter+0xfe/0x1c0
Dec 25 07:16:52 be1va kernel: [698827.786507]  __filemap_fdatawrite_range+0xcf/0x110
Dec 25 07:16:52 be1va kernel: [698827.788247]  ext4_release_file+0x6c/0xa0 [ext4]
Dec 25 07:16:52 be1va kernel: [698827.789778]  __fput+0xac/0x1e0
Dec 25 07:16:52 be1va kernel: [698827.790921]  task_work_run+0x8a/0xb0
Dec 25 07:16:52 be1va kernel: [698827.792294]  exit_to_usermode_loop+0xeb/0xf0
Dec 25 07:16:52 be1va kernel: [698827.793706]  do_syscall_64+0x10d/0x110
Dec 25 07:16:52 be1va kernel: [698827.795004]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
Dec 25 07:16:52 be1va kernel: [698827.796768] RIP: 0033:0x484834
Dec 25 07:16:52 be1va kernel: [698827.797788] Code: ff ff cc cc cc cc e8 cb 15 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 45 31 d2 45 31 c0 45 31 c9 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
Dec 25 07:16:52 be1va kernel: [698827.804309] RSP: 002b:000000c4204dceb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
Dec 25 07:16:52 be1va kernel: [698827.806735] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000484834
Dec 25 07:16:52 be1va kernel: [698827.809277] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
Dec 25 07:16:52 be1va kernel: [698827.811729] RBP: 000000c4204dcf00 R08: 0000000000000000 R09: 0000000000000000
Dec 25 07:16:52 be1va kernel: [698827.814152] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
Dec 25 07:16:52 be1va kernel: [698827.816732] R13: 00000000000000f5 R14: 0000000000000075 R15: 0000000000000004


These watchdogs repeated for several hours until the machine started responding quite poorly and got some attention.


-- Package-specific info:
** Version:
Linux version 4.19.0-7-amd64 (debian-kernel@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.87-1 (2019-12-03)

** Command line:
BOOT_IMAGE=/boot/vmlinuz-4.19.0-7-amd64 root=UUID=748dc755-be1a-48f0-8c03-edf7e026dc96 ro mitigations=off console=ttyS0,115200 earlyprintk=ttyS0,115200

** Not tainted

** Kernel log:
Unable to read kernel log; any relevant messages should be attached

** Model information
sys_vendor: QEMU
product_name: Standard PC (i440FX + PIIX, 1996)
product_version: pc-i440fx-3.1
chassis_vendor: QEMU
chassis_version: pc-i440fx-3.1
bios_vendor: SeaBIOS
bios_version: 1.12.0-1

** Loaded modules:
bfq
rpcsec_gss_krb5
nfsv4
dns_resolver
nfsd
auth_rpcgss
nfs_acl
nfs
lockd
grace
fscache
sunrpc
sb_edac
crct10dif_pclmul
crc32_pclmul
ghash_clmulni_intel
joydev
evdev
sg
virtio_console
virtio_balloon
serio_raw
pcspkr
qemu_fw_cfg
button
ext4
crc16
mbcache
jbd2
crc32c_generic
fscrypto
ecb
sd_mod
ata_generic
virtio_net
net_failover
virtio_scsi
failover
crc32c_intel
ata_piix
libata
aesni_intel
uhci_hcd
ehci_hcd
aes_x86_64
crypto_simd
psmouse
cryptd
virtio_pci
floppy
usbcore
scsi_mod
glue_helper
virtio_ring
i2c_piix4
virtio
usb_common

** PCI devices:
not available

** USB devices:
not available


-- System Information:
Debian Release: 10.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'proposed-updates'), (500, 'stable'), (150, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-7-amd64 (SMP w/32 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages linux-image-4.19.0-7-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.133+deb10u1
ii  kmod                                    26-1
ii  linux-base                              4.6

Versions of packages linux-image-4.19.0-7-amd64 recommends:
pn  apparmor             <none>
pn  firmware-linux-free  <none>

Versions of packages linux-image-4.19.0-7-amd64 suggests:
pn  debian-kernel-handbook               <none>
pn  grub-pc | grub-efi-amd64 | extlinux  <none>
pn  linux-doc-4.19                       <none>

Versions of packages linux-image-4.19.0-7-amd64 is related to:
pn  firmware-amd-graphics     <none>
pn  firmware-atheros          <none>
pn  firmware-bnx2             <none>
pn  firmware-bnx2x            <none>
pn  firmware-brcm80211        <none>
pn  firmware-cavium           <none>
pn  firmware-intel-sound      <none>
pn  firmware-intelwimax       <none>
pn  firmware-ipw2x00          <none>
pn  firmware-ivtv             <none>
pn  firmware-iwlwifi          <none>
pn  firmware-libertas         <none>
pn  firmware-linux-nonfree    <none>
pn  firmware-misc-nonfree     <none>
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
pn  firmware-realtek          <none>
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information

--- End Message ---
--- Begin Message --- 
Hi

This bug was filed for a very old kernel or the bug is old itself
without resolution.

If you can reproduce it with

- the current version in unstable/testing
- the latest kernel from backports

please reopen the bug, see https://www.debian.org/Bugs/server-control
for details.

Regards,
Salvatore

--- End Message ---
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