qemux86-64 ltp kernel panic


Richard Purdie
 

https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1969

died with the following kernel panic:

[ 2650.301002] option changes via remount are deprecated (pid=15940 comm=mount)
[ 2652.496768] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
[ 2652.508974] BUG: unable to handle page fault for address: ffff937f3d8de6b8
[ 2652.510710] #PF: supervisor instruction fetch in kernel mode
[ 2652.512028] #PF: error_code(0x0011) - permissions violation
[ 2652.513312] PGD 6001067 P4D 6001067 PUD 6002067 PMD 800000003d8000e3
[ 2652.514819] Oops: 0011 [#1] PREEMPT SMP PTI
[ 2652.515810] CPU: 3 PID: 16301 Comm: cat Not tainted 5.10.41-yocto-standard #1
[ 2652.517484] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 2652.520045] RIP: 0010:0xffff937f3d8de6b8
[ 2652.520951] Code: ff ff 88 e6 8d 3d 7f 93 ff ff 48 a5 f4 10 7f 93 ff ff 90 df 8d 3d 7f 93 ff ff a8 e6 8d 3d 7f 93 ff ff a8 e6 8d 3d 7f 93 ff ff <70> 57 39 02 7f 93 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2652.526109] RSP: 0018:ffff9c9100120f28 EFLAGS: 00010282
[ 2652.527415] RAX: ffff937f3d8de6b8 RBX: ffff937f3edaacc0 RCX: ffff937f02395770
[ 2652.529173] RDX: 0000000000000000 RSI: ffff9c9100120f38 RDI: ffff937f02395770
[ 2652.530946] RBP: ffff9c9100120f80 R08: 0000026b359c768e R09: 7fffffffffffffff
[ 2652.532696] R10: 000002698b120200 R11: ffffffffb56060c0 R12: 000000000000000a
[ 2652.534440] R13: ffff9c9100120f38 R14: 0000000000000000 R15: ffff937f3edaad30
[ 2652.536221] FS: 00007fec565b55c0(0000) GS:ffff937f3ed80000(0000) knlGS:0000000000000000
[ 2652.538214] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2652.539621] CR2: ffff937f3d8de6b8 CR3: 0000000010ed6000 CR4: 00000000001506e0
[ 2652.541434] Call Trace:
[ 2652.542026] <IRQ>
[ 2652.542527] ? rcu_core+0x235/0x570
[ 2652.543383] rcu_core_si+0xe/0x10
[ 2652.544200] __do_softirq+0xd2/0x2bc
[ 2652.545096] asm_call_irq_on_stack+0x12/0x20
[ 2652.546123] </IRQ>
[ 2652.546674] do_softirq_own_stack+0x3d/0x50
[ 2652.547724] irq_exit_rcu+0x8f/0xc0
[ 2652.548597] sysvec_apic_timer_interrupt+0x35/0x80
[ 2652.549760] asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 2652.550944] RIP: 0010:syscall_enter_from_user_mode+0xd/0x30
[ 2652.552246] Code: f0 00 74 12 65 81 05 3e c1 3f 4b 00 00 ef ff e8 39 fd ff ff 5d c3 0f 0b 0f 1f 44 00 00 48 89 f0 fb 65 48 8b 14 25 00 6d 01 00 <48> 8b 32 f7 c6 c1 01 00 10 75 01 c3 55 48 89 e5 e8 be 54 4c ff 5d
[ 2652.556557] RSP: 0018:ffff9c910392ff38 EFLAGS: 00000246
[ 2652.557777] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 2652.559440] RDX: ffff937f2eeb2880 RSI: 0000000000000000 RDI: ffff9c910392ff58
[ 2652.561096] RBP: ffff9c910392ff48 R08: 0000000000000000 R09: 0000000000000000
[ 2652.562780] R10: 0000000000000000 R11: 0000000000000000 R12: ffff9c910392ff58
[ 2652.564451] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 2652.566116] ? do_syscall_64+0x14/0x50
[ 2652.567014] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2652.568201] RIP: 0033:0x7fec564db072
[ 2652.569062] Code: c0 e9 d2 fe ff ff 48 8d 3d 6b e1 09 00 50 e8 a5 d4 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
[ 2652.573522] RSP: 002b:00007ffcd5e88a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 2652.575307] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007fec564db072
[ 2652.577020] RDX: 0000000000020000 RSI: 00007fec563cd000 RDI: 0000000000000003
[ 2652.578738] RBP: 00007fec563cd000 R08: 00007fec563cc010 R09: 0000000000000000
[ 2652.580468] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000020000
[ 2652.582097] R13: 0000000000000003 R14: 0000000000000002 R15: 0000000000020000
[ 2652.583725] Modules linked in: bnep
[ 2652.584555] CR2: ffff937f3d8de6b8
[ 2652.585360] ---[ end trace 9a47e1a3be6020d4 ]---
[ 2652.586434] RIP: 0010:0xffff937f3d8de6b8
[ 2652.587342] Code: ff ff 88 e6 8d 3d 7f 93 ff ff 48 a5 f4 10 7f 93 ff ff 90 df 8d 3d 7f 93 ff ff a8 e6 8d 3d 7f 93 ff ff a8 e6 8d 3d 7f 93 ff ff <70> 57 39 02 7f 93 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 2652.592461] RSP: 0018:ffff9c9100120f28 EFLAGS: 00010282
[ 2652.593716] RAX: ffff937f3d8de6b8 RBX: ffff937f3edaacc0 RCX: ffff937f02395770
[ 2652.595448] RDX: 0000000000000000 RSI: ffff9c9100120f38 RDI: ffff937f02395770
[ 2652.597180] RBP: ffff9c9100120f80 R08: 0000026b359c768e R09: 7fffffffffffffff
[ 2652.598888] R10: 000002698b120200 R11: ffffffffb56060c0 R12: 000000000000000a
[ 2652.600692] R13: ffff9c9100120f38 R14: 0000000000000000 R15: ffff937f3edaad30
[ 2652.602337] FS: 00007fec565b55c0(0000) GS:ffff937f3ed80000(0000) knlGS:0000000000000000
[ 2652.604223] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2652.605556] CR2: ffff937f3d8de6b8 CR3: 0000000010ed6000 CR4: 00000000001506e0
[ 2652.607091] Kernel panic - not syncing: Fatal exception in interrupt
[ 2652.608216] Kernel Offset: 0x33000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 2652.609892] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---

ltp test log looks to be testimage/ltp_log.20210602224847/controllers-raw.log:

Checking for required user/group ids

'nobody' user id and group found.
'bin' user id and group found.
'daemon' user id and group found.
Users group found.
Sys group found.
Required users/groups exist.
no big block device was specified on commandline.
Tests which require a big block device are disabled.
You can specify it with option -z
INFO: Test start time: Wed Jun 2 23:32:06 UTC 2021
COMMAND: /opt/ltp/bin/ltp-pan -q -e -S -a 18685 -n 18685 -p -f /opt/ltp/ltp-quKlbyFeTO/alltests -l
/opt/ltp/results/controllers -C /opt/ltp/output/LTP_RUN_ON-controllers.failed -T /opt/ltp/output/LTP_RUN_ON-
controllers.tconf
LOG File: /opt/ltp/results/controllers
FAILED COMMAND File: /opt/ltp/output/LTP_RUN_ON-controllers.failed
TCONF COMMAND File: /opt/ltp/output/LTP_RUN_ON-controllers.tconf
Running tests.......
cgroup_regression_test 1 TINFO: timeout per run is 0h 5m 0s
cgroup_regression_test 1 TPASS: no kernel bug was found
cgroup_regression_test 2 TPASS: notify_on_release is inherited
cgroup_regression_test 3 TCONF: CONFIG_SCHED_DEBUG is not enabled
cgroup_regression_test 4 TCONF: CONFIG_LOCKDEP is not enabled
cgroup_regression_test 5 TPASS: no kernel bug was found
cgroup_regression_test 6 TCONF: CONFIG_CGROUP_NS is NOT supported in Kernels >= 3.0
mount: /opt/ltp/ltp-quKlbyFeTO/LTP_cgroup_regression_test.XlkWzxbviv/cgroup: xxx already mounted or mount
point busy.
cgroup_regression_test 7 TFAIL: failed to mount pids
cgroup_regression_test 7 TPASS: no kernel bug was found for test 1
cgroup_regression_test 7 TCONF: skip rest of testing due possible oops triggered by reading /proc/sched_debug
cgroup_regression_test 7 TPASS: no kernel bug was found for test 2
cgroup_regression_test 8 TPASS: no kernel bug was found
client_loop: send disconnect: Broken pipe

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