Hi,
blktest:block/027 failing consistently on latest linux-block/for-next
HEAD :-
commit dac4337ef0ff38b723e81e2d15593e1de829c4d2 (origin/for-next)
Merge: c506c378c29b 8d283ee62b07
Author: Jens Axboe <axboe@xxxxxxxxx>
Date: Tue Nov 29 10:53:26 2022 -0700
Merge branch 'for-6.2/block' into for-next
* for-6.2/block:
block: use bool as the return type of elv_iosched_allow_bio_merge
block: replace "len+name" with "name+len" in elv_iosched_show
block: always use 'e' when printing scheduler name
block: replace continue with else-if in elv_iosched_show
block: include 'none' for initial elv_iosched_show call
dev login: [ 350.408229] BUG: kernel NULL pointer dereference, address:
0000000000000008
[ 350.410132] #PF: supervisor read access in kernel mode
[ 350.411685] #PF: error_code(0x0000) - not-present page
[ 350.412981] PGD 0 P4D 0
[ 350.414258] Oops: 0000 [#1] PREEMPT SMP NOPTI
[ 350.415380] CPU: 38 PID: 13802 Comm: kworker/38:3 Tainted: G W
6.1.0-rc6blk+ #70
[ 350.417541] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
[ 350.420313] Workqueue: 0x0 (cgroup_destroy)
[ 350.421378] RIP: 0010:process_one_work+0x31/0x380
[ 350.422570] Code: 41 56 41 55 41 54 55 48 89 f5 53 48 89 fb 48 83 ec
08 48 8b 06 4c 8b 67 48 49 89 c5 45 30 ed a8 04 b8 00 00 00 00 4c 0f 44
e8 <49> 8b 45 08 44 8b b0 00 01 00 00 41 83 e6 20 41 f6 44 24 10 04 75
[ 350.427162] RSP: 0018:ffffc900083c7ea0 EFLAGS: 00010046
[ 350.428458] RAX: 0000000000000000 RBX: ffff8881054ef5c0 RCX:
000000010000c6b4
[ 350.430773] RDX: 000000010000c6b4 RSI: ffff88814843f468 RDI:
ffff8881054ef5c0
[ 350.432569] RBP: ffff88814843f468 R08: ffff88814843f468 R09:
0000000000000000
[ 350.434361] R10: ffff888100402b80 R11: ffffc900083c7e40 R12:
ffff888fffbac740
[ 350.435850] R13: 0000000000000000 R14: ffffffff810fb300 R15:
ffff888fffbac740
[ 350.437648] FS: 0000000000000000(0000) GS:ffff888fffb80000(0000)
knlGS:0000000000000000
[ 350.442354] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 350.443916] CR2: 0000000000000008 CR3: 000000000280a000 CR4:
0000000000350ee0
[ 350.446339] Call Trace:
[ 350.446967] <TASK>
[ 350.447512] ? rescuer_thread+0x390/0x390
[ 350.448515] worker_thread+0x50/0x3a0
[ 350.449452] ? rescuer_thread+0x390/0x390
[ 350.450477] kthread+0xe7/0x110
[ 350.451319] ? kthread_complete_and_exit+0x20/0x20
[ 350.452569] ret_from_fork+0x22/0x30
[ 350.453530] </TASK>
[ 350.454121] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq
snd_seq_device snd_timer snd soundcore ip6table_mangle ip6table_raw
ip6table_security iptable_mangle iptable_raw iptable_security ip_set
nf_tables rfkill nfnetlink ip6table_filter ip6_tables iptable_filter tun
sunrpc intel_rapl_msr intel_rapl_common xfs kvm_amd ccp kvm ppdev
parport_pc bfq irqbypass parport joydev pcspkr i2c_piix4 zram ip_tables
bochs drm_vram_helper drm_kms_helper drm_ttm_helper ttm crct10dif_pclmul
nvme crc32_pclmul drm crc32c_intel ghash_clmulni_intel virtio_net
sha512_ssse3 sd_mod nvme_core net_failover failover ata_generic
nvme_common virtio_blk serio_raw t10_pi qemu_fw_cfg pata_acpi fuse [last
unloaded: scsi_debug]
Entering kdb (current=0xffff8881038f5080, pid 13802) on processor 38
Oops: (null)
due to oops @ 0xffffffff810fac21
CPU: 38 PID: 13802 Comm: kworker/38:3 Tainted: G W
6.1.0-rc6blk+ #70
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Workqueue: 0x0 (cgroup_destroy)
RIP: 0010:process_one_work+0x31/0x380
Code: 41 56 41 55 41 54 55 48 89 f5 53 48 89 fb 48 83 ec 08 48 8b 06 4c
8b 67 48 49 89 c5 45 30 ed a8 04 b8 00 00 00 00 4c 0f 44 e8 <49> 8b 45
08 44 8b b0 00 01 00 00 41 83 e6 20 41 f6 44 24 10 04 75
RSP: 0018:ffffc900083c7ea0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8881054ef5c0 RCX: 000000010000c6b4
RDX: 000000010000c6b4 RSI: ffff88814843f468 RDI: ffff8881054ef5c0
RBP: ffff88814843f468 R08: ffff88814843f468 R09: 0000000000000000
R10: ffff888100402b80 R11: ffffc900083c7e40 R12: ffff888fffbac740
R13: 0000000000000000 R14: ffffffff810fb300 R15: ffff888fffbac740
FS: 0000000000000000(0000) GS:ffff888fffb80000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 000000000280a000 CR4: 0000000000350ee0
Call Trace:
<TASK>
? rescuer_thread+0x390/0x390
worker_thread+0x50/0x3a0
? rescuer_thread+0x390/0x390
kthread+0xe7/0x110
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x22/0x30
</TASK>
[38]kdb> bt
Stack traceback for pid 13802
0xffff8881038f5080 13802 2 1 38 R 0xffff8881038f7440
*kworker/38:3
CPU: 38 PID: 13802 Comm: kworker/38:3 Tainted: G W
6.1.0-rc6blk+ #70
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Workqueue: 0x0 (cgroup_destroy)
Call Trace:
<TASK>
dump_stack_lvl+0x45/0x5e
kdb_show_stack+0x79/0x90
kdb_bt1+0xbb/0x130
kdb_bt+0x34f/0x3b0
kdb_parse+0x2b7/0x700
kdb_main_loop+0x4a8/0x990
? process_one_work+0x10/0x380
kdb_stub+0x1ab/0x3f0
kgdb_cpu_enter+0x331/0x5e0
kgdb_handle_exception+0xb6/0x100
__kgdb_notify+0x30/0x90
kgdb_notify+0x1d/0x40
notify_die+0x6f/0xb0
__die_body+0x7d/0xa0
page_fault_oops+0xae/0x270
? do_user_addr_fault+0x65/0x6a0
exc_page_fault+0x71/0x170
asm_exc_page_fault+0x22/0x30
RIP: 0010:process_one_work+0x31/0x380
Code: 41 56 41 55 41 54 55 48 89 f5 53 48 89 fb 48 83 ec 08 48 8b 06 4c
8b 67 48 49 89 c5 45 30 ed a8 04 b8 00 00 00 00 4c 0f 44 e8 <49> 8b 45
08 44 8b b0 00 01 00 00 41 83 e6 20 41 f6 44 24 10 04 75
RSP: 0018:ffffc900083c7ea0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8881054ef5c0 RCX: 000000010000c6b4
RDX: 000000010000c6b4 RSI: ffff88814843f468 RDI: ffff8881054ef5c0
RBP: ffff88814843f468 R08: ffff88814843f468 R09: 0000000000000000
R10: ffff888100402b80 R11: ffffc900083c7e40 R12: ffff888fffbac740
R13: 0000000000000000 R14: ffffffff810fb300 R15: ffff888fffbac740
? rescuer_thread+0x390/0x390
? rescuer_thread+0x390/0x390
worker_thread+0x50/0x3a0
? rescuer_thread+0x390/0x390
kthread+0xe7/0x110
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x22/0x30
</TASK>
[38]kdb>
<4>[ 118.772433] ------------[ cut here ]------------
<4>[ 118.772438] list_add corruption. prev->next should be next
(ffff888fff2ac768), but was ffff888fff2b3468. (prev=ffff88817b40cc70).
<4>[ 118.772458] WARNING: CPU: 2 PID: 864 at lib/list_debug.c:30
__list_add_valid+0x89/0xb0
more>
<4>[ 118.772527] CPU: 2 PID: 864 Comm: kworker/2:2 Not tainted
6.1.0-rc6blk+ #70
<4>[ 118.772531] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
<4>[ 118.772534] Workqueue: 0x0 (cgwb_release)
<4>[ 118.772539] RIP: 0010:__list_add_valid+0x89/0xb0
<4>[ 118.772545] RSP: 0018:ffffc90000e83e70 EFLAGS: 00010082
<4>[ 118.772548] RAX: 0000000000000000 RBX: ffff888105cb1ae0 RCX:
0000000000000000
<4>[ 118.772550] RDX: 0000000000000002 RSI: ffffffff825c7b01 RDI:
00000000ffffffff
<4>[ 118.772552] RBP: ffff888105cb1ae8 R08: ffff88903ff403a8 R09:
00000000ffffbfff
<4>[ 118.772553] R10: ffff888fff0a0000 R11: ffff88903fee03c0 R12:
ffff888fff2ac768
<4>[ 118.772555] R13: ffff888fff2b3e60 R14: 0000000000000000 R15:
ffff88817b40cc70
<4>[ 118.772559] FS: 0000000000000000(0000) GS:ffff888fff280000(0000)
knlGS:0000000000000000
<4>[ 118.772561] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 118.772563] CR2: 00007f469e848224 CR3: 000000000280a000 CR4:
0000000000350ee0
<4>[ 118.772567] Call Trace:
<4>[ 118.772581] <TASK>
<4>[ 118.772582] move_linked_works+0x70/0xa0
<4>[ 118.772589] ? rescuer_thread+0x390/0x390
<4>[ 118.772592] pwq_activate_inactive_work+0x39/0xa0
<4>[ 118.772595] pwq_dec_nr_in_flight+0x65/0xc0
<4>[ 118.772598] worker_thread+0x50/0x3a0
<4>[ 118.772602] ? rescuer_thread+0x390/0x390
<4>[ 118.772605] kthread+0xe7/0x110
<4>[ 118.772608] ? kthread_complete_and_exit+0x20/0x20
<4>[ 118.772611] ret_from_fork+0x22/0x30
<4>[ 118.772619] </TASK>
<4>[ 118.772620] ---[ end trace 0000000000000000 ]---
<1>[ 118.772629] BUG: kernel NULL pointer dereference, address:
0000000000000008
<1>[ 118.774401] #PF: supervisor read access in kernel mode
<1>[ 118.775688] #PF: error_code(0x0000) - not-present page
<6>[ 118.777504] PGD 0 P4D 0
<4>[ 118.778124] Oops: 0000 [#1] PREEMPT SMP NOPTI
<4>[ 118.779227] CPU: 2 PID: 864 Comm: kworker/2:2 Tainted: G W
6.1.0-rc6blk+ #70
<4>[ 118.781326] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
<4>[ 118.784171] Workqueue: 0x0 (cgroup_destroy)
<4>[ 118.785424] RIP: 0010:process_one_work+0x31/0x380
<4>[ 118.790983] RSP: 0018:ffffc90000e83ea0 EFLAGS: 00010046
<4>[ 118.792230] RAX: 0000000000000000 RBX: ffff888112d6a300 RCX:
00000000fffd3aeb
<4>[ 118.794563] RDX: 00000000fffd3aeb RSI: ffff88817b40cc68 RDI:
ffff888112d6a300
<4>[ 118.796447] RBP: ffff88817b40cc68 R08: ffff88817b40cc68 R09:
0000000000000000
<4>[ 118.798264] R10: ffff888100400028 R11: ffffc90000e83e40 R12:
ffff888fff2ac740
<4>[ 118.800002] R13: 0000000000000000 R14: ffffffff810fb300 R15:
ffff888fff2ac740
<4>[ 118.801743] FS: 0000000000000000(0000) GS:ffff888fff280000(0000)
knlGS:0000000000000000
<4>[ 118.803940] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 118.806042] CR2: 0000000000000008 CR3: 000000000280a000 CR4:
0000000000350ee0
<4>[ 118.807975] Call Trace:
<4>[ 118.808615] <TASK>
<4>[ 118.809657] ? rescuer_thread+0x390/0x390
<4>[ 118.810770] worker_thread+0x50/0x3a0
<4>[ 118.811725] ? rescuer_thread+0x390/0x390
<4>[ 118.812567] kthread+0xe7/0x110
<4>[ 118.813423] ? kthread_complete_and_exit+0x20/0x20
<4>[ 118.814760] ret_from_fork+0x22/0x30
<4>[ 118.815739] </TASK>
[2]kdb>
-ck
