https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1932

We have another ltp hang on the autobuilder. ps ax output:

9261 ? I 0:00 [kworker/2:0-rcu_gp]
9298 ? I 0:01 [kworker/1:3-events]
11312 ? S 0:00 /sbin/syslogd -n -O /var/log/messages
11315 ? S 0:00 /sbin/klogd -n
13085 ? I 0:00 [kworker/2:4-mm_percpu_wq]
16291 ? S 0:00 /usr/sbin/dropbear -r /etc/dropbear/dropbear_rsa_host_key -p 22 -B
16292 ? S 0:00 /bin/sh /opt/ltp/runltp -f commands -p -q -r /opt/ltp -l /opt/ltp/results/commands
-I 1 -d /opt/ltp
16334 ? S 0:00 /opt/ltp/bin/ltp-pan -q -e -S -a 16292 -n 16292 -p -f /opt/ltp/ltp-
i2b5MCkGm9/alltests -l /opt/ltp/results/commands -C /opt/ltp/output/LTP_RUN_ON-commands.failed -T
/opt/ltp/output/LTP_RUN_ON-commands.t
17878 ? S< 0:00 [loop0]
17884 ? D 0:00 mount -t ext2 /dev/loop0 mntpoint
17885 ? I< 0:00 [ext4-rsv-conver]
17906 ? S< 0:00 [loop1]
17912 ? D 0:00 mount -t ext3 /dev/loop1 mntpoint
17913 ? S 0:00 [jbd2/loop1-8]
17914 ? I< 0:00 [ext4-rsv-conver]
17916 ? I 0:00 [kworker/u8:2-events_unbound]
17936 ? S< 0:00 [loop2]
17942 ? D 0:00 mount -t ext4 /dev/loop2 mntpoint
17943 ? S 0:00 [jbd2/loop2-8]
17944 ? I< 0:00 [ext4-rsv-conver]
17965 ? S< 0:00 [loop3]
17967 ? D 0:00 grep -q /dev/loop3 /proc/mounts
17988 ? S< 0:00 [loop4]
17991 ? D 0:00 mkfs.vfat /dev/loop4
18011 ? S< 0:00 [loop5]
18013 ? D 0:00 grep -q /dev/loop5 /proc/mounts
18033 ? S< 0:00 [loop6]
18035 ? D 0:00 grep -q /dev/loop6 /proc/mounts
18548 ? D 0:00 unshare --mount mount --bind dir_A dir_B
18606 ? R 0:00 /usr/sbin/dropbear -r /etc/dropbear/dropbear_rsa_host_key -p 22 -B

so we're in loopback mount tests but the small piece of kernel dmesg below 
suggests this one is a kernel issue. I only pasted a sample, the buffer is filled
with these. Added Bruce to cc:, any ideas?


[ 2131.374105] RIP: 0010:d_alloc_parallel+0xd5/0x570
[ 2131.374650] Code: 00 48 89 83 a0 00 00 00 e8 28 9e 9c 00 4c 89 65 80 65 48 8b 04 25 00 6d 01 00 48 89 85 70 ff ff ff e8 3f f4 e7 ff 48 8b 43 30 <44> 8b a0 28 02 00 00 44 8b 3d ed 1c 3b 01 41 f6 c7 01 74 0f f3 90
[ 2131.376669] RSP: 0018:ffff8eb785587c50 EFLAGS: 00010202
[ 2131.377255] RAX: 0000000000000000 RBX: ffff88e8c147f900 RCX: 0000000000000000
[ 2131.378017] RDX: ffff88e8c147f9a0 RSI: ffffffff82433240 RDI: ffff88e8c147f958
[ 2131.378813] RBP: ffff8eb785587cf0 R08: 00000000000000c0 R09: ffff8eb785587dc0
[ 2131.379614] R10: ffff88e8c147f900 R11: ffffff8b919a989e R12: ffff88e8c147f900
[ 2131.380391] R13: 000000009655cd16 R14: ffffffff82bff370 R15: ffff88e8c147f958
[ 2131.381146] FS: 00007fd92f66b580(0000) GS:ffff88e8fec80000(0000) knlGS:0000000000000000
[ 2131.382038] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.382702] CR2: 0000000000000008 CR3: 0000000035466000 CR4: 00000000001506e0
[ 2131.384305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.385060] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2131.423042] BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 2131.426829] #PF: supervisor read access in kernel mode
[ 2131.427630] #PF: error_code(0x0000) - not-present page
[ 2131.428337] PGD 0 P4D 0
[ 2131.428692] Oops: 0000 [#1018] PREEMPT SMP PTI
[ 2131.429302] CPU: 3 PID: 15773 Comm: grep Tainted: G D 5.10.37-yocto-standard #1
[ 2131.430453] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 2131.431970] RIP: 0010:kernfs_sop_show_options+0x15/0x50
[ 2131.432674] Code: 10 48 c7 c0 f2 ff ff ff eb 97 cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 48 8b 46 30 48 85 c0 74 07 48 8b 80 48 02 00 00 <48> 8b 50 08 48 85 d2 48 0f 44 d0 31 c0 48 8b 72 50 48 8b 56 30 48
[ 2131.435158] RSP: 0018:ffff8eb78439fd58 EFLAGS: 00010246
[ 2131.435885] RAX: 0000000000000000 RBX: ffff88e8c1328ca0 RCX: 0000000000000000
[ 2131.436842] RDX: ffffffff814d9640 RSI: ffff88e8c147f900 RDI: ffff88e8d20369d8
[ 2131.437803] RBP: ffff8eb78439fda0 R08: 0000000000000008 R09: ffffffff82627360
[ 2131.438772] R10: 000000000000022b R11: 000000000000000c R12: ffff88e8d20369d8
[ 2131.439733] R13: ffff88e8daa3f000 R14: ffffffff8242b970 R15: ffff88e8c1328c80
[ 2131.440507] FS: 00007f1246cd2740(0000) GS:ffff88e8fed80000(0000) knlGS:0000000000000000
[ 2131.441366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.441973] CR2: 0000000000000008 CR3: 000000003d71a000 CR4: 00000000001506e0
[ 2131.442738] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.443499] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2131.444266] Call Trace:
[ 2131.444555] ? show_vfsmnt+0x1b1/0x200
[ 2131.444943] m_show+0x1a/0x20
[ 2131.445274] seq_read_iter+0x2c8/0x490
[ 2131.445689] new_sync_read+0x10d/0x190
[ 2131.446078] vfs_read+0x128/0x180
[ 2131.446445] ksys_read+0x67/0xe0
[ 2131.446798] __x64_sys_read+0x19/0x20
[ 2131.447199] do_syscall_64+0x38/0x50
[ 2131.447596] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2131.448112] RIP: 0033:0x7f1246dc0052
[ 2131.449276] Code: c0 e9 d2 fe ff ff 48 8d 3d 6b e1 09 00 50 e8 c5 d3 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
[ 2131.451250] RSP: 002b:00007fff2f611858 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 2131.452043] RAX: ffffffffffffffda RBX: 0000559259536320 RCX: 00007f1246dc0052
[ 2131.452817] RDX: 0000000000000400 RSI: 0000559259536500 RDI: 0000000000000003
[ 2131.453591] RBP: 00007f1246e8f300 R08: 0000000000000003 R09: 00007f1246e8da60
[ 2131.454348] R10: 0000000000000077 R11: 0000000000000246 R12: 0000000000000000
[ 2131.455090] R13: 0000000000000d68 R14: 00007f1246e8e700 R15: 0000000000000d68
[ 2131.455972] Modules linked in: bnep
[ 2131.456367] CR2: 0000000000000008
[ 2131.456766] ---[ end trace bec3d6eec9de38c7 ]---
[ 2131.457269] RIP: 0010:d_alloc_parallel+0xd5/0x570
[ 2131.457791] Code: 00 48 89 83 a0 00 00 00 e8 28 9e 9c 00 4c 89 65 80 65 48 8b 04 25 00 6d 01 00 48 89 85 70 ff ff ff e8 3f f4 e7 ff 48 8b 43 30 <44> 8b a0 28 02 00 00 44 8b 3d ed 1c 3b 01 41 f6 c7 01 74 0f f3 90
[ 2131.459769] RSP: 0018:ffff8eb785587c50 EFLAGS: 00010202
[ 2131.460332] RAX: 0000000000000000 RBX: ffff88e8c147f900 RCX: 0000000000000000
[ 2131.461082] RDX: ffff88e8c147f9a0 RSI: ffffffff82433240 RDI: ffff88e8c147f958
[ 2131.461865] RBP: ffff8eb785587cf0 R08: 00000000000000c0 R09: ffff8eb785587dc0
[ 2131.462654] R10: ffff88e8c147f900 R11: ffffff8b919a989e R12: ffff88e8c147f900
[ 2131.463417] R13: 000000009655cd16 R14: ffffffff82bff370 R15: ffff88e8c147f958
[ 2131.464174] FS: 00007f1246cd2740(0000) GS:ffff88e8fed80000(0000) knlGS:0000000000000000
[ 2131.465052] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.465686] CR2: 0000000000000008 CR3: 000000003d71a000 CR4: 00000000001506e0
[ 2131.466477] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.467258] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2131.473108] BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 2131.475231] #PF: supervisor read access in kernel mode
[ 2131.476231] #PF: error_code(0x0000) - not-present page
[ 2131.477057] PGD 0 P4D 0
[ 2131.477479] Oops: 0000 [#1019] PREEMPT SMP PTI
[ 2131.478197] CPU: 0 PID: 15777 Comm: mount Tainted: G D 5.10.37-yocto-standard #1
[ 2131.479593] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 2131.481374] RIP: 0010:kernfs_sop_show_path+0x1c/0x60
[ 2131.482177] Code: b6 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 49 89 f0 48 8b 76 30 48 89 e5 48 85 f6 74 07 48 8b b6 48 02 00 00 <48> 8b 46 08 48 85 c0 48 0f 44 c6 48 8b 50 50 48 8b 42 30 48 85 c0
[ 2131.485150] RSP: 0018:ffff8eb7843b7d48 EFLAGS: 00010246
[ 2131.485938] RAX: ffffffff814d9700 RBX: ffff88e8c1328ca0 RCX: 0000000000000001
[ 2131.486660] RDX: 0000000000001000 RSI: 0000000000000000 RDI: ffff88e8c3efa2d0
[ 2131.487398] RBP: ffff8eb7843b7d48 R08: ffff88e8c147f900 R09: 0000000000000001
[ 2131.488123] R10: ffffffff8263d97c R11: ffff88e8dc3e1317 R12: ffff88e8c3efa2d0
[ 2131.488845] R13: ffff88e8daa3f000 R14: ffff88e8c3efa2f8 R15: ffff88e8fd7e2600
[ 2131.489567] FS: 00007f659ae24580(0000) GS:ffff88e8fec00000(0000) knlGS:0000000000000000
[ 2131.490386] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.490971] CR2: 0000000000000008 CR3: 000000001210e000 CR4: 00000000001506f0
[ 2131.491698] DR0: 0000000000000001 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.492420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
[ 2131.493140] Call Trace:
[ 2131.493401] show_mountinfo+0x8b/0x330
[ 2131.493799] m_show+0x1a/0x20
[ 2131.494108] seq_read_iter+0x2c8/0x490
[ 2131.494494] new_sync_read+0x10d/0x190
[ 2131.494880] vfs_read+0x128/0x180
[ 2131.495228] ksys_read+0x67/0xe0
[ 2131.495562] __x64_sys_read+0x19/0x20
[ 2131.495941] do_syscall_64+0x38/0x50
[ 2131.496312] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2131.496826] RIP: 0033:0x7f659af8d052
[ 2131.497209] Code: c0 e9 d2 fe ff ff 48 8d 3d 6b e1 09 00 50 e8 c5 d3 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
[ 2131.499081] RSP: 002b:00007ffcce6434b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 2131.499854] RAX: ffffffffffffffda RBX: 0000000000004000 RCX: 00007f659af8d052
[ 2131.500575] RDX: 0000000000004000 RSI: 0000563edb40d310 RDI: 0000000000000003
[ 2131.501296] RBP: 00007ffcce643540 R08: 0000563edb40d310 R09: 00007f659b05aa60
[ 2131.502017] R10: 0000000000000077 R11: 0000000000000246 R12: 0000000000000003
[ 2131.502747] R13: 0000000000000000 R14: 00007f659ae24500 R15: 0000563edb40d310
[ 2131.503477] Modules linked in: bnep
[ 2131.503841] CR2: 0000000000000008
[ 2131.504206] ---[ end trace bec3d6eec9de38c8 ]---
[ 2131.504685] RIP: 0010:d_alloc_parallel+0xd5/0x570
[ 2131.505169] Code: 00 48 89 83 a0 00 00 00 e8 28 9e 9c 00 4c 89 65 80 65 48 8b 04 25 00 6d 01 00 48 89 85 70 ff ff ff e8 3f f4 e7 ff 48 8b 43 30 <44> 8b a0 28 02 00 00 44 8b 3d ed 1c 3b 01 41 f6 c7 01 74 0f f3 90
[ 2131.507080] RSP: 0018:ffff8eb785587c50 EFLAGS: 00010202
[ 2131.507630] RAX: 0000000000000000 RBX: ffff88e8c147f900 RCX: 0000000000000000
[ 2131.508362] RDX: ffff88e8c147f9a0 RSI: ffffffff82433240 RDI: ffff88e8c147f958
[ 2131.509089] RBP: ffff8eb785587cf0 R08: 00000000000000c0 R09: ffff8eb785587dc0
[ 2131.509816] R10: ffff88e8c147f900 R11: ffffff8b919a989e R12: ffff88e8c147f900
[ 2131.510549] R13: 000000009655cd16 R14: ffffffff82bff370 R15: ffff88e8c147f958
[ 2131.511304] FS: 00007f659ae24580(0000) GS:ffff88e8fec00000(0000) knlGS:0000000000000000
[ 2131.512133] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.512727] CR2: 0000000000000008 CR3: 000000001210e000 CR4: 00000000001506f0
[ 2131.514232] DR0: 0000000000000001 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.514962] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
[ 2131.551760] BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 2131.553085] #PF: supervisor read access in kernel mode
[ 2131.554013] #PF: error_code(0x0000) - not-present page
[ 2131.554944] PGD 0 P4D 0
[ 2131.555432] Oops: 0000 [#1020] PREEMPT SMP PTI
[ 2131.556229] CPU: 3 PID: 15802 Comm: grep Tainted: G D 5.10.37-yocto-standard #1
[ 2131.557750] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 2131.559732] RIP: 0010:kernfs_sop_show_options+0x15/0x50
[ 2131.560667] Code: 10 48 c7 c0 f2 ff ff ff eb 97 cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 48 8b 46 30 48 85 c0 74 07 48 8b 80 48 02 00 00 <48> 8b 50 08 48 85 d2 48 0f 44 d0 31 c0 48 8b 72 50 48 8b 56 30 48
[ 2131.563701] RSP: 0018:ffff8eb784427d58 EFLAGS: 00010246
[ 2131.564254] RAX: 0000000000000000 RBX: ffff88e8c1328ca0 RCX: 0000000000000000
[ 2131.565000] RDX: ffffffff814d9640 RSI: ffff88e8c147f900 RDI: ffff88e8d20369d8
[ 2131.565765] RBP: ffff8eb784427da0 R08: 0000000000000008 R09: ffffffff82627360
[ 2131.566514] R10: 000000000000022b R11: 000000000000000c R12: ffff88e8d20369d8
[ 2131.567264] R13: ffff88e8daa3f000 R14: ffffffff8242b970 R15: ffff88e8c1328c80
[ 2131.568013] FS: 00007f28130cc740(0000) GS:ffff88e8fed80000(0000) knlGS:0000000000000000
[ 2131.568873] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.569486] CR2: 0000000000000008 CR3: 0000000004708000 CR4: 00000000001506e0
[ 2131.570243] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.571002] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2131.571782] Call Trace:
[ 2131.572062] ? show_vfsmnt+0x1b1/0x200
[ 2131.572466] m_show+0x1a/0x20
[ 2131.572799] seq_read_iter+0x2c8/0x490
[ 2131.573204] new_sync_read+0x10d/0x190
[ 2131.573627] vfs_read+0x128/0x180
[ 2131.573971] ksys_read+0x67/0xe0
[ 2131.574327] __x64_sys_read+0x19/0x20
[ 2131.574726] do_syscall_64+0x38/0x50
[ 2131.575098] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2131.575773] RIP: 0033:0x7f28131ba052
[ 2131.576143] Code: c0 e9 d2 fe ff ff 48 8d 3d 6b e1 09 00 50 e8 c5 d3 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
[ 2131.578113] RSP: 002b:00007fffc6474718 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 2131.579699] RAX: ffffffffffffffda RBX: 00005629054f3320 RCX: 00007f28131ba052
[ 2131.580455] RDX: 0000000000000400 RSI: 00005629054f3500 RDI: 0000000000000003
[ 2131.581214] RBP: 00007f2813289300 R08: 0000000000000003 R09: 00007f2813287a60
[ 2131.581962] R10: 0000000000000077 R11: 0000000000000246 R12: 0000000000000000
[ 2131.582729] R13: 0000000000000d68 R14: 00007f2813288700 R15: 0000000000000d68
[ 2131.583489] Modules linked in: bnep
[ 2131.583869] CR2: 0000000000000008
[ 2131.584254] ---[ end trace bec3d6eec9de38c9 ]---
[ 2131.584752] RIP: 0010:d_alloc_parallel+0xd5/0x570
[ 2131.585275] Code: 00 48 89 83 a0 00 00 00 e8 28 9e 9c 00 4c 89 65 80 65 48 8b 04 25 00 6d 01 00 48 89 85 70 ff ff ff e8 3f f4 e7 ff 48 8b 43 30 <44> 8b a0 28 02 00 00 44 8b 3d ed 1c 3b 01 41 f6 c7 01 74 0f f3 90
[ 2131.587273] RSP: 0018:ffff8eb785587c50 EFLAGS: 00010202
[ 2131.587845] RAX: 0000000000000000 RBX: ffff88e8c147f900 RCX: 0000000000000000
[ 2131.588620] RDX: ffff88e8c147f9a0 RSI: ffffffff82433240 RDI: ffff88e8c147f958
[ 2131.589385] RBP: ffff8eb785587cf0 R08: 00000000000000c0 R09: ffff8eb785587dc0
[ 2131.590137] R10: ffff88e8c147f900 R11: ffffff8b919a989e R12: ffff88e8c147f900
[ 2131.590909] R13: 000000009655cd16 R14: ffffffff82bff370 R15: ffff88e8c147f958
[ 2131.591706] FS: 00007f28130cc740(0000) GS:ffff88e8fed80000(0000) knlGS:0000000000000000
[ 2131.592577] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.593210] CR2: 0000000000000008 CR3: 0000000004708000 CR4: 00000000001506e0
[ 2131.593989] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.594785] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2131.600460] BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 2131.602355] #PF: supervisor read access in kernel mode
[ 2131.603527] #PF: error_code(0x0000) - not-present page
[ 2131.604353] PGD 0 P4D 0
[ 2131.604782] Oops: 0000 [#1021] PREEMPT SMP PTI
[ 2131.605619] CPU: 0 PID: 15806 Comm: mount Tainted: G D 5.10.37-yocto-standard #1
[ 2131.607001] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 2131.608803] RIP: 0010:kernfs_sop_show_path+0x1c/0x60
[ 2131.609603] Code: b6 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 49 89 f0 48 8b 76 30 48 89 e5 48 85 f6 74 07 48 8b b6 48 02 00 00 <48> 8b 46 08 48 85 c0 48 0f 44 c6 48 8b 50 50 48 8b 42 30 48 85 c0
[ 2131.612590] RSP: 0018:ffff8eb78443fd48 EFLAGS: 00010246
[ 2131.613432] RAX: ffffffff814d9700 RBX: ffff88e8c1328ca0 RCX: 0000000000000001
[ 2131.614578] RDX: 0000000000001000 RSI: 0000000000000000 RDI: ffff88e8c3efa2d0
[ 2131.615575] RBP: ffff8eb78443fd48 R08: ffff88e8c147f900 R09: 0000000000000001
[ 2131.616319] R10: ffffffff8263d97c R11: ffff88e8dc3e1317 R12: ffff88e8c3efa2d0
[ 2131.617042] R13: ffff88e8daa3f000 R14: ffff88e8c3efa2f8 R15: ffff88e8fd7e2600
[ 2131.617768] FS: 00007f5eb7d5c580(0000) GS:ffff88e8fec00000(0000) knlGS:0000000000000000
[ 2131.618589] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.619207] CR2: 0000000000000008 CR3: 000000001131a000 CR4: 00000000001506f0
[ 2131.619955] DR0: 0000000000000001 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.620679] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
[ 2131.621404] Call Trace:
[ 2131.621666] show_mountinfo+0x8b/0x330
[ 2131.622056] m_show+0x1a/0x20
[ 2131.622366] seq_read_iter+0x2c8/0x490
[ 2131.622755] new_sync_read+0x10d/0x190
[ 2131.623149] vfs_read+0x128/0x180
[ 2131.623540] ksys_read+0x67/0xe0
[ 2131.623875] __x64_sys_read+0x19/0x20
[ 2131.624258] do_syscall_64+0x38/0x50
[ 2131.624630] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2131.625147] RIP: 0033:0x7f5eb7ec5052
[ 2131.625519] Code: c0 e9 d2 fe ff ff 48 8d 3d 6b e1 09 00 50 e8 c5 d3 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
[ 2131.627433] RSP: 002b:00007ffdd589ed58 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 2131.628220] RAX: ffffffffffffffda RBX: 0000000000004000 RCX: 00007f5eb7ec5052
[ 2131.628947] RDX: 0000000000004000 RSI: 00005621afedf310 RDI: 0000000000000003
[ 2131.629672] RBP: 00007ffdd589ede0 R08: 00005621afedf310 R09: 00007f5eb7f92a60
[ 2131.630399] R10: 0000000000000077 R11: 0000000000000246 R12: 0000000000000003
[ 2131.631122] R13: 0000000000000000 R14: 00007f5eb7d5c500 R15: 00005621afedf310
[ 2131.631890] Modules linked in: bnep
[ 2131.632255] CR2: 0000000000000008
[ 2131.632632] ---[ end trace bec3d6eec9de38ca ]---
[ 2131.633120] RIP: 0010:d_alloc_parallel+0xd5/0x570
[ 2131.633613] Code: 00 48 89 83 a0 00 00 00 e8 28 9e 9c 00 4c 89 65 80 65 48 8b 04 25 00 6d 01 00 48 89 85 70 ff ff ff e8 3f f4 e7 ff 48 8b 43 30 <44> 8b a0 28 02 00 00 44 8b 3d ed 1c 3b 01 41 f6 c7 01 74 0f f3 90
[ 2131.635650] RSP: 0018:ffff8eb785587c50 EFLAGS: 00010202
[ 2131.636194] RAX: 0000000000000000 RBX: ffff88e8c147f900 RCX: 0000000000000000
[ 2131.636924] RDX: ffff88e8c147f9a0 RSI: ffffffff82433240 RDI: ffff88e8c147f958
[ 2131.637661] RBP: ffff8eb785587cf0 R08: 00000000000000c0 R09: ffff8eb785587dc0
[ 2131.638406] R10: ffff88e8c147f900 R11: ffffff8b919a989e R12: ffff88e8c147f900
[ 2131.639136] R13: 000000009655cd16 R14: ffffffff82bff370 R15: ffff88e8c147f958
[ 2131.639919] FS: 00007f5eb7d5c580(0000) GS:ffff88e8fec00000(0000) knlGS:0000000000000000
[ 2131.640750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.641353] CR2: 0000000000000008 CR3: 000000001131a000 CR4: 00000000001506f0
[ 2131.642090] DR0: 0000000000000001 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.642824] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
[ 2131.678894] BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 2131.683398] #PF: supervisor read access in kernel mode
[ 2131.683942] #PF: error_code(0x0000) - not-present page
[ 2131.684492] PGD 0 P4D 0
[ 2131.684774] Oops: 0000 [#1022] PREEMPT SMP PTI
[ 2131.685247] CPU: 2 PID: 15831 Comm: grep Tainted: G D 5.10.37-yocto-standard #1
[ 2131.686238] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 2131.687474] RIP: 0010:kernfs_sop_show_options+0x15/0x50
[ 2131.688025] Code: 10 48 c7 c0 f2 ff ff ff eb 97 cc cc cc cc cc cc cc cc cc cc cc 0f 1f 44 00 00 48 8b 46 30 48 85 c0 74 07 48 8b 80 48 02 00 00 <48> 8b 50 08 48 85 d2 48 0f 44 d0 31 c0 48 8b 72 50 48 8b 56 30 48
[ 2131.689986] RSP: 0018:ffff8eb784497d58 EFLAGS: 00010246
[ 2131.690559] RAX: 0000000000000000 RBX: ffff88e8c1328ca0 RCX: 0000000000000000
[ 2131.691304] RDX: ffffffff814d9640 RSI: ffff88e8c147f900 RDI: ffff88e8c3e080f0
[ 2131.692045] RBP: ffff8eb784497da0 R08: 0000000000000008 R09: ffffffff82627360
[ 2131.692944] R10: 000000000000022b R11: 000000000000000c R12: ffff88e8c3e080f0
[ 2131.693799] R13: ffff88e8daa3f000 R14: ffffffff8242b970 R15: ffff88e8c1328c80
[ 2131.694580] FS: 00007fd2e715d740(0000) GS:ffff88e8fed00000(0000) knlGS:0000000000000000
[ 2131.695576] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.696176] CR2: 0000000000000008 CR3: 0000000014322000 CR4: 00000000001506e0
[ 2131.696937] DR0: 0000558661313290 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.697707] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[ 2131.698722] Call Trace:
[ 2131.699033] ? show_vfsmnt+0x1b1/0x200
[ 2131.699454] m_show+0x1a/0x20
[ 2131.699792] seq_read_iter+0x2c8/0x490
[ 2131.700180] new_sync_read+0x10d/0x190
[ 2131.700608] vfs_read+0x128/0x180
[ 2131.700954] ksys_read+0x67/0xe0
[ 2131.701312] __x64_sys_read+0x19/0x20
[ 2131.701713] do_syscall_64+0x38/0x50
[ 2131.702084] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2131.702645] RIP: 0033:0x7fd2e724b052
[ 2131.703015] Code: c0 e9 d2 fe ff ff 48 8d 3d 6b e1 09 00 50 e8 c5 d3 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
[ 2131.705018] RSP: 002b:00007ffe0fbf7368 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 2131.705826] RAX: ffffffffffffffda RBX: 00005633a5489320 RCX: 00007fd2e724b052
[ 2131.706656] RDX: 0000000000000400 RSI: 00005633a5489500 RDI: 0000000000000003
[ 2131.707696] RBP: 00007fd2e731a300 R08: 0000000000000003 R09: 00007fd2e7318a60
[ 2131.708451] R10: 0000000000000077 R11: 0000000000000246 R12: 0000000000000000
[ 2131.709983] R13: 0000000000000d68 R14: 00007fd2e7319700 R15: 0000000000000d68
[ 2131.710763] Modules linked in: bnep
[ 2131.711127] CR2: 0000000000000008
[ 2131.711551] ---[ end trace bec3d6eec9de38cb ]---
[ 2131.712048] RIP: 0010:d_alloc_parallel+0xd5/0x570
[ 2131.712553] Code: 00 48 89 83 a0 00 00 00 e8 28 9e 9c 00 4c 89 65 80 65 48 8b 04 25 00 6d 01 00 48 89 85 70 ff ff ff e8 3f f4 e7 ff 48 8b 43 30 <44> 8b a0 28 02 00 00 44 8b 3d ed 1c 3b 01 41 f6 c7 01 74 0f f3 90
[ 2131.714535] RSP: 0018:ffff8eb785587c50 EFLAGS: 00010202
[ 2131.715097] RAX: 0000000000000000 RBX: ffff88e8c147f900 RCX: 0000000000000000
[ 2131.715874] RDX: ffff88e8c147f9a0 RSI: ffffffff82433240 RDI: ffff88e8c147f958
[ 2131.716655] RBP: ffff8eb785587cf0 R08: 00000000000000c0 R09: ffff8eb785587dc0
[ 2131.717412] R10: ffff88e8c147f900 R11: ffffff8b919a989e R12: ffff88e8c147f900
[ 2131.718169] R13: 000000009655cd16 R14: ffffffff82bff370 R15: ffff88e8c147f958
[ 2131.718940] FS: 00007fd2e715d740(0000) GS:ffff88e8fed00000(0000) knlGS:0000000000000000
[ 2131.719820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.720438] CR2: 0000000000000008 CR3: 0000000014322000 CR4: 00000000001506e0
[ 2131.721210] DR0: 0000558661313290 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.721962] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[ 2131.728339] BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 2131.730096] #PF: supervisor read access in kernel mode
[ 2131.731361] #PF: error_code(0x0000) - not-present page
[ 2131.732385] PGD 0 P4D 0
[ 2131.732907] Oops: 0000 [#1023] PREEMPT SMP PTI
[ 2131.733802] CPU: 3 PID: 15835 Comm: mount Tainted: G D 5.10.37-yocto-standard #1
[ 2131.735537] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 2131.737738] RIP: 0010:kernfs_sop_show_path+0x1c/0x60
[ 2131.738721] Code: b6 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 49 89 f0 48 8b 76 30 48 89 e5 48 85 f6 74 07 48 8b b6 48 02 00 00 <48> 8b 46 08 48 85 c0 48 0f 44 c6 48 8b 50 50 48 8b 42 30 48 85 c0
[ 2131.742383] RSP: 0018:ffff8eb78449fd48 EFLAGS: 00010246
[ 2131.743437] RAX: ffffffff814d9700 RBX: ffff88e8c1328ca0 RCX: 0000000000000001
[ 2131.744301] RDX: 0000000000001000 RSI: 0000000000000000 RDI: ffff88e8d20369d8
[ 2131.745041] RBP: ffff8eb78449fd48 R08: ffff88e8c147f900 R09: 0000000000000001
[ 2131.745803] R10: ffffffff8263d97c R11: ffff88e8f572f317 R12: ffff88e8d20369d8
[ 2131.746567] R13: ffff88e8daa3f000 R14: ffff88e8d2036a00 R15: ffff88e8ce719c00
[ 2131.747316] FS: 00007f4d5c6b7580(0000) GS:ffff88e8fed80000(0000) knlGS:0000000000000000
[ 2131.748152] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.748776] CR2: 0000000000000008 CR3: 00000000122e0000 CR4: 00000000001506e0
[ 2131.749540] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.750281] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2131.751023] Call Trace:
[ 2131.751305] show_mountinfo+0x8b/0x330
[ 2131.751715] m_show+0x1a/0x20
[ 2131.752024] seq_read_iter+0x2c8/0x490
[ 2131.752434] new_sync_read+0x10d/0x190
[ 2131.752837] vfs_read+0x128/0x180
[ 2131.753180] ksys_read+0x67/0xe0
[ 2131.753555] __x64_sys_read+0x19/0x20
[ 2131.753933] do_syscall_64+0x38/0x50
[ 2131.754322] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2131.754860] RIP: 0033:0x7f4d5c820052
[ 2131.755251] Code: c0 e9 d2 fe ff ff 48 8d 3d 6b e1 09 00 50 e8 c5 d3 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
[ 2131.757310] RSP: 002b:00007ffda90edce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 2131.758096] RAX: ffffffffffffffda RBX: 0000000000004000 RCX: 00007f4d5c820052
[ 2131.758856] RDX: 0000000000004000 RSI: 0000561bd49c6310 RDI: 0000000000000003
[ 2131.759624] RBP: 00007ffda90edd70 R08: 0000561bd49c6310 R09: 00007f4d5c8eda60
[ 2131.760369] R10: 0000000000000077 R11: 0000000000000246 R12: 0000000000000003
[ 2131.761109] R13: 0000000000000000 R14: 00007f4d5c6b7500 R15: 0000561bd49c6310
[ 2131.761871] Modules linked in: bnep
[ 2131.762251] CR2: 0000000000000008
[ 2131.762652] ---[ end trace bec3d6eec9de38cc ]---
[ 2131.763146] RIP: 0010:d_alloc_parallel+0xd5/0x570
[ 2131.763657] Code: 00 48 89 83 a0 00 00 00 e8 28 9e 9c 00 4c 89 65 80 65 48 8b 04 25 00 6d 01 00 48 89 85 70 ff ff ff e8 3f f4 e7 ff 48 8b 43 30 <44> 8b a0 28 02 00 00 44 8b 3d ed 1c 3b 01 41 f6 c7 01 74 0f f3 90
[ 2131.765645] RSP: 0018:ffff8eb785587c50 EFLAGS: 00010202
[ 2131.766251] RAX: 0000000000000000 RBX: ffff88e8c147f900 RCX: 0000000000000000
[ 2131.767005] RDX: ffff88e8c147f9a0 RSI: ffffffff82433240 RDI: ffff88e8c147f958
[ 2131.767784] RBP: ffff8eb785587cf0 R08: 00000000000000c0 R09: ffff8eb785587dc0
[ 2131.768569] R10: ffff88e8c147f900 R11: ffffff8b919a989e R12: ffff88e8c147f900
[ 2131.769320] R13: 000000009655cd16 R14: ffffffff82bff370 R15: ffff88e8c147f958
[ 2131.770077] FS: 00007f4d5c6b7580(0000) GS:ffff88e8fed80000(0000) knlGS:0000000000000000
[ 2131.770953] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2131.771597] CR2: 0000000000000008 CR3: 00000000122e0000 CR4: 00000000001506e0
[ 2131.772352] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2131.773108] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2136.795714] BUG: kernel NULL pointer dereference, address: 000000000000000d
[ 2136.798484] #PF: supervisor read access in kernel mode
[ 2136.799299] #PF: error_code(0x0000) - not-present page
[ 2136.799845] PGD 0 P4D 0
[ 2136.800129] Oops: 0000 [#1024] PREEMPT SMP PTI
[ 2136.800604] CPU: 1 PID: 15843 Comm: rm Tainted: G D 5.10.37-yocto-standard #1
[ 2136.801508] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 2136.802706] RIP: 0010:security_inode_getattr+0xd/0x50
[ 2136.803272] Code: 4d 85 f6 75 e3 31 c0 5b 41 5c 41 5d 41 5e 5d c3 31 c0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 8b 47 08 48 8b 40 30 <f6> 40 0d 02 75 35 55 48 89 e5 41 54 49 89 fc 53 48 8b 1d dc 91 fe
[ 2136.805275] RSP: 0018:ffff8eb7844d7e20 EFLAGS: 00010246
[ 2136.805910] RAX: 0000000000000000 RBX: ffff8eb7844d7e80 RCX: 000000002a1ce201
[ 2136.806665] RDX: 000000002a1ce1c1 RSI: ffffffff8144b20c RDI: ffff8eb7844d7e30
[ 2136.807432] RBP: ffff8eb7844d7e70 R08: 0000000000000064 R09: 0000000000000000
[ 2136.808197] R10: ffff88e8c1481f00 R11: 000070756f726763 R12: 0000000000000000
[ 2136.808951] R13: 0000000000000005 R14: 0000564ec0f757e8 R15: 0000000000000900
[ 2136.809714] FS: 00007f4bdb1965c0(0000) GS:ffff88e8fec80000(0000) knlGS:0000000000000000
[ 2136.810575] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2136.811204] CR2: 000000000000000d CR3: 000000002cc44000 CR4: 00000000001506e0
[ 2136.812083] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2136.812843] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2136.813615] Call Trace:
[ 2136.813896] ? vfs_statx+0x87/0x120
[ 2136.814289] __do_sys_newfstatat+0x36/0x70
[ 2136.814738] ? fsnotify_find_mark+0x16/0x80
[ 2136.815210] ? iterate_dir+0x121/0x1c0
[ 2136.815634] ? fput+0x13/0x20
[ 2136.815970] ? filp_close+0x60/0x70
[ 2136.816362] __x64_sys_newfstatat+0x1c/0x20
[ 2136.816824] do_syscall_64+0x38/0x50
[ 2136.817225] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2136.817785] RIP: 0033:0x7f4bdb0bb70e
[ 2136.818188] Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 07 00 00 00 0f 1f 80 00 00 00 00 f3 0f 1e fa 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 0b 31 c0 c3 0f 1f 84 00 00 00 00 00 48 8b 15 29
[ 2136.820303] RSP: 002b:00007fffa2df5358 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
[ 2136.821123] RAX: ffffffffffffffda RBX: 0000564ec0f756e0 RCX: 00007f4bdb0bb70e
[ 2136.821897] RDX: 0000564ec0f75758 RSI: 0000564ec0f757e8 RDI: 0000000000000005
[ 2136.822667] RBP: 0000564ec0f742f0 R08: 0000000000000000 R09: 00007f4bdb189a60
[ 2136.823445] R10: 0000000000000100 R11: 0000000000000246 R12: 0000564ec0f75758
[ 2136.824234] R13: 0000000000000000 R14: 0000000000000000 R15: 0000564ec0f7d870
[ 2136.825004] Modules linked in: bnep
[ 2136.825393] CR2: 000000000000000d
[ 2136.826208] ---[ end trace bec3d6eec9de38cd ]---
[ 2136.826731] RIP: 0010:d_alloc_parallel+0xd5/0x570
[ 2136.827320] Code: 00 48 89 83 a0 00 00 00 e8 28 9e 9c 00 4c 89 65 80 65 48 8b 04 25 00 6d 01 00 48 89 85 70 ff ff ff e8 3f f4 e7 ff 48 8b 43 30 <44> 8b a0 28 02 00 00 44 8b 3d ed 1c 3b 01 41 f6 c7 01 74 0f f3 90
[ 2136.829415] RSP: 0018:ffff8eb785587c50 EFLAGS: 00010202
[ 2136.829986] RAX: 0000000000000000 RBX: ffff88e8c147f900 RCX: 0000000000000000
[ 2136.830836] RDX: ffff88e8c147f9a0 RSI: ffffffff82433240 RDI: ffff88e8c147f958
[ 2136.831689] RBP: ffff8eb785587cf0 R08: 00000000000000c0 R09: ffff8eb785587dc0
[ 2136.832512] R10: ffff88e8c147f900 R11: ffffff8b919a989e R12: ffff88e8c147f900
[ 2136.833351] R13: 000000009655cd16 R14: ffffffff82bff370 R15: ffff88e8c147f958
[ 2136.834121] FS: 00007f4bdb1965c0(0000) GS:ffff88e8fec80000(0000) knlGS:0000000000000000
[ 2136.835062] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2136.835757] CR2: 000000000000000d CR3: 000000002cc44000 CR4: 00000000001506e0
[ 2136.836574] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2136.837397] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2157.360870] EXT4-fs (loop0): mounting ext2 file system using the ext4 subsystem
[ 2157.363369] EXT4-fs (loop0): mounted filesystem without journal. Opts: (null)
[ 2157.364829] ext2 filesystem being mounted at /opt/ltp/ltp-i2b5MCkGm9/LTP_df01.8NtMZ3LBLa/mntpoint supports timestamps until 2038 (0x7fffffff)
[ 2457.550406] EXT4-fs (loop1): mounting ext3 file system using the ext4 subsystem
[ 2457.562617] EXT4-fs (loop1): mounted filesystem with ordered data mode. Opts: (null)
[ 2457.563892] ext3 filesystem being mounted at /opt/ltp/ltp-i2b5MCkGm9/LTP_df01.JKoAa3Ab5v/mntpoint supports timestamps until 2038 (0x7fffffff)
[ 2757.421401] EXT4-fs (loop2): mounted filesystem with ordered data mode. Opts: (null)
[ 2757.422417] ext4 filesystem being mounted at /opt/ltp/ltp-i2b5MCkGm9/LTP_df01.d8q4Q6tnah/mntpoint supports timestamps until 2038 (0x7fffffff)