Further ltp hang - kernel issue?


Richard Purdie
 

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)


Richard Purdie
 

On Sun, 2021-05-23 at 11:33 +0100, Richard Purdie via lists.yoctoproject.org wrote:
https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1932
Oddly enough, 
https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1933 
on centos7-ty-4 (master build) is locked up with pretty much exactly 
the same issue/ps output/tests/dmesg.

The first one above was debian10-ty-1 with master-next.

Recent kernel version bump?

Cheers,

Richard


Bruce Ashfield <bruce.ashfield@...>
 

On Sun, May 23, 2021 at 6:36 AM Richard Purdie
<richard.purdie@linuxfoundation.org> wrote:

On Sun, 2021-05-23 at 11:33 +0100, Richard Purdie via lists.yoctoproject.org wrote:
https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1932
Oddly enough,
https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1933
on centos7-ty-4 (master build) is locked up with pretty much exactly
the same issue/ps output/tests/dmesg.

The first one above was debian10-ty-1 with master-next.

Recent kernel version bump?
I can't think of anything specific that would cause those issues, but the
Wind River guys did report some bad iommu patches that were part of
5.10.37

I've merged .38, which has the fixes, but I haven't sent the bumps yet.
It is worth trying the attached SRCREV patch, to see if there's any
change in behaviour.

Bruce


Cheers,

Richard

--
- Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end
- "Use the force Harry" - Gandalf, Star Trek II


Richard Purdie
 

On Sun, 2021-05-23 at 07:42 -0400, Bruce Ashfield wrote:
On Sun, May 23, 2021 at 6:36 AM Richard Purdie
<richard.purdie@linuxfoundation.org> wrote:

On Sun, 2021-05-23 at 11:33 +0100, Richard Purdie via lists.yoctoproject.org wrote:
https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1932
Oddly enough,
https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1933
on centos7-ty-4 (master build) is locked up with pretty much exactly
the same issue/ps output/tests/dmesg.

The first one above was debian10-ty-1 with master-next.

Recent kernel version bump?
I can't think of anything specific that would cause those issues, but the
Wind River guys did report some bad iommu patches that were part of
5.10.37

I've merged .38, which has the fixes, but I haven't sent the bumps yet.
It is worth trying the attached SRCREV patch, to see if there's any
change in behaviour.
Thanks for the patch, I ran with it for a number of runs. I have not seen .38
break in the way master or master-next with .37 did. I've ran several and 50%
of the time .37 would hang in ltp.

Can we upgrade to .38 ASAP please? :)

This is obviously a separate issue to the rcu stalls but I also think that
is 5.10 related.

Cheers,

Richard


Bruce Ashfield <bruce.ashfield@...>
 

On Mon, May 24, 2021 at 11:31 AM Richard Purdie
<richard.purdie@linuxfoundation.org> wrote:

On Sun, 2021-05-23 at 07:42 -0400, Bruce Ashfield wrote:
On Sun, May 23, 2021 at 6:36 AM Richard Purdie
<richard.purdie@linuxfoundation.org> wrote:

On Sun, 2021-05-23 at 11:33 +0100, Richard Purdie via lists.yoctoproject.org wrote:
https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1932
Oddly enough,
https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1933
on centos7-ty-4 (master build) is locked up with pretty much exactly
the same issue/ps output/tests/dmesg.

The first one above was debian10-ty-1 with master-next.

Recent kernel version bump?
I can't think of anything specific that would cause those issues, but the
Wind River guys did report some bad iommu patches that were part of
5.10.37

I've merged .38, which has the fixes, but I haven't sent the bumps yet.
It is worth trying the attached SRCREV patch, to see if there's any
change in behaviour.
Thanks for the patch, I ran with it for a number of runs. I have not seen .38
break in the way master or master-next with .37 did. I've ran several and 50%
of the time .37 would hang in ltp.

Can we upgrade to .38 ASAP please? :)
sent. I cherry picked it from my queue and sent it individually.

I'll continue testing the rest of my updates.

Bruce

This is obviously a separate issue to the rcu stalls but I also think that
is 5.10 related.

Cheers,

Richard


--
- Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end
- "Use the force Harry" - Gandalf, Star Trek II