Hello,
the following kernel panic was triggered by ubdsrv generic/002,
please help check and let me know if you need any info/test, thanks.
commit HEAD:
commit 2589cd05008205ee29f5f66f24a684732ee2e3a3
Merge: 98d0347fe8fb e1c75831f682
Author: Jens Axboe <axboe@xxxxxxxxx>
Date: Wed Jun 18 05:11:50 2025 -0600
Merge branch 'io_uring-6.16' into for-next
* io_uring-6.16:
io_uring: fix potential page leak in io_sqe_buffer_register()
io_uring/sqpoll: don't put task_struct on tctx setup failure
io_uring: remove duplicate io_uring_alloc_task_context() definition
dmesg log:
[ 7016.058777] running generic/002
[ 7018.902645] I/O error, dev ublkb0, sector 164120 op 0x1:(WRITE)
flags 0x8800 phys_seg 1 prio class 0
[ 7018.911876] I/O error, dev ublkb0, sector 164072 op 0x0:(READ)
flags 0x0 phys_seg 2 prio class 0
[ 7018.920776] I/O error, dev ublkb0, sector 164128 op 0x1:(WRITE)
flags 0x8800 phys_seg 3 prio class 0
[ 7018.930012] I/O error, dev ublkb0, sector 164088 op 0x0:(READ)
flags 0x0 phys_seg 2 prio class 0
[ 7018.938885] I/O error, dev ublkb0, sector 164152 op 0x1:(WRITE)
flags 0x8800 phys_seg 1 prio class 0
[ 7018.948100] I/O error, dev ublkb0, sector 164104 op 0x0:(READ)
flags 0x0 phys_seg 3 prio class 0
[ 7018.956985] I/O error, dev ublkb0, sector 152112 op 0x0:(READ)
flags 0x0 phys_seg 3 prio class 0
[ 7018.965884] I/O error, dev ublkb0, sector 153040 op 0x1:(WRITE)
flags 0x8800 phys_seg 1 prio class 0
[ 7018.966317] I/O error, dev ublkb0, sector 164160 op 0x1:(WRITE)
flags 0x8800 phys_seg 2 prio class 0
[ 7018.966398] I/O error, dev ublkb0, sector 153056 op 0x1:(WRITE)
flags 0x8800 phys_seg 2 prio class 0
[ 7019.030649] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7019.037860] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7019.045042] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7019.052207] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7019.059367] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7019.066568] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7023.086712] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7023.093983] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7023.101162] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7023.108331] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7027.271895] blk_print_req_error: 524 callbacks suppressed
[ 7027.271948] I/O error, dev ublkb0, sector 78016 op 0x0:(READ) flags
0x0 phys_seg 1 prio class 0
[ 7027.272241] I/O error, dev ublkb0, sector 174712 op 0x1:(WRITE)
flags 0x8800 phys_seg 5 prio class 0
[ 7027.277500] I/O error, dev ublkb0, sector 78024 op 0x1:(WRITE)
flags 0x8800 phys_seg 2 prio class 0
[ 7027.286245] I/O error, dev ublkb0, sector 174472 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 0
[ 7027.295391] I/O error, dev ublkb0, sector 78008 op 0x0:(READ) flags
0x0 phys_seg 1 prio class 0
[ 7027.304482] I/O error, dev ublkb0, sector 174752 op 0x1:(WRITE)
flags 0x8800 phys_seg 3 prio class 0
[ 7027.313313] I/O error, dev ublkb0, sector 70808 op 0x0:(READ) flags
0x0 phys_seg 1 prio class 0
[ 7027.322074] I/O error, dev ublkb0, sector 174480 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 0
[ 7027.331237] I/O error, dev ublkb0, sector 70888 op 0x1:(WRITE)
flags 0x8800 phys_seg 2 prio class 0
[ 7027.339972] I/O error, dev ublkb0, sector 174776 op 0x1:(WRITE)
flags 0x8800 phys_seg 2 prio class 0
[ 7027.344409] buffer_io_error: 2 callbacks suppressed
[ 7027.344423] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7027.379136] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7027.386297] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7027.393505] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7027.400652] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7027.407828] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7027.441199] Buffer I/O error on dev ublkb0, logical block 65535984,
async page read
[ 7032.010124] restraintd[1486]: *** Current Time: Fri Jun 20 13:33:51
2025 Localwatchdog at: Fri Jun 20 17:14:51 2025
[ 7031.507630] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7031.514883] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7031.522069] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7035.677852] blk_print_req_error: 506 callbacks suppressed
[ 7035.677867] I/O error, dev ublkb0, sector 113224 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 0
[ 7035.678946] I/O error, dev ublkb0, sector 205808 op 0x1:(WRITE)
flags 0x8800 phys_seg 3 prio class 0
[ 7035.683413] I/O error, dev ublkb0, sector 113168 op 0x0:(READ)
flags 0x0 phys_seg 2 prio class 0
[ 7035.692216] I/O error, dev ublkb0, sector 207248 op 0x0:(READ)
flags 0x0 phys_seg 4 prio class 0
[ 7035.719077] I/O error, dev ublkb0, sector 205832 op 0x1:(WRITE)
flags 0x8800 phys_seg 1 prio class 0
[ 7035.728292] I/O error, dev ublkb0, sector 207280 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 0
[ 7035.737160] I/O error, dev ublkb0, sector 205840 op 0x1:(WRITE)
flags 0x8800 phys_seg 1 prio class 0
[ 7035.746416] I/O error, dev ublkb0, sector 207288 op 0x0:(READ)
flags 0x0 phys_seg 3 prio class 0
[ 7035.755296] I/O error, dev ublkb0, sector 205848 op 0x1:(WRITE)
flags 0x8800 phys_seg 2 prio class 0
[ 7035.764516] I/O error, dev ublkb0, sector 207312 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 0
[ 7035.778303] buffer_io_error: 3 callbacks suppressed
[ 7035.778317] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7035.790565] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7035.797745] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7035.804930] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7035.812112] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7035.819299] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7035.862857] Buffer I/O error on dev ublkb0, logical block 65535984,
async page read
[ 7039.928599] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7039.935813] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7039.942990] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 7044.064528] BUG: kernel NULL pointer dereference, address: 0000000000000001
[ 7044.071507] #PF: supervisor read access in kernel mode
[ 7044.076653] #PF: error_code(0x0000) - not-present page
[ 7044.081801] PGD 462c42067 P4D 462c42067 PUD 462c43067 PMD 0
[ 7044.087488] Oops: Oops: 0000 [#1] SMP NOPTI
[ 7044.091685] CPU: 13 UID: 0 PID: 367 Comm: kworker/13:1H Not tainted
6.16.0-rc2+ #1 PREEMPT(voluntary)
[ 7044.100991] Hardware name: Dell Inc. PowerEdge R640/0X45NX, BIOS
2.22.2 09/12/2024
[ 7044.108565] Workqueue: kblockd blk_mq_requeue_work
[ 7044.113374] RIP: 0010:__io_req_task_work_add+0x18/0x1f0
[ 7044.118608] Code: 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
90 90 66 0f 1f 00 e8 27 5a ac 0d 41 56 41 55 41 54 55 53 48 8b 6f 60
48 89 fb <f6> 45 01 20 0f 84 8e 00 00 00 31 c0 f6 47 48 0c 0f 94 c0 21
c6 41
[ 7044.137362] RSP: 0018:ffffcf6ec3d63c50 EFLAGS: 00010292
[ 7044.142598] RAX: ffffffffc136e3b0 RBX: ffff8ecf44fb3e80 RCX: 0000000000000000
[ 7044.149740] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8ecf44fb3e80
[ 7044.156882] RBP: 0000000000000000 R08: 00000000248436de R09: ffff8ecf4409a100
[ 7044.164021] R10: 000000000000003c R11: ffff8ed2812f1180 R12: ffff8ecf44fb3e80
[ 7044.171163] R13: ffffcf6ec3d63cc8 R14: 0000000000000000 R15: ffff8ece97859310
[ 7044.178304] FS: 0000000000000000(0000) GS:ffff8ed379e45000(0000)
knlGS:0000000000000000
[ 7044.186399] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7044.192155] CR2: 0000000000000001 CR3: 000000036eb7c004 CR4: 00000000007726f0
[ 7044.199295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 7044.206437] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 7044.213578] PKRU: 55555554
[ 7044.216299] Call Trace:
[ 7044.218762] <TASK>
[ 7044.220881] ? ftrace_stub_direct_tramp+0x10/0x10
[ 7044.225599] ublk_queue_rq+0x50/0x90 [ublk_drv]
[ 7044.230155] ? ftrace_stub_direct_tramp+0x10/0x10
[ 7044.234873] blk_mq_dispatch_rq_list+0x13c/0x510
[ 7044.239520] ? ftrace_stub_direct_tramp+0x10/0x10
[ 7044.244230] __blk_mq_sched_dispatch_requests+0x118/0x1a0
[ 7044.249652] ? ftrace_stub_direct_tramp+0x10/0x10
[ 7044.254363] blk_mq_sched_dispatch_requests+0x2d/0x70
[ 7044.259426] ? ftrace_stub_direct_tramp+0x10/0x10
[ 7044.264140] blk_mq_run_hw_queue+0x26a/0x2e0
[ 7044.268430] ? ftrace_stub_direct_tramp+0x10/0x10
[ 7044.273144] blk_mq_run_hw_queues+0x7f/0x140
[ 7044.277436] ? ftrace_stub_direct_tramp+0x10/0x10
[ 7044.282150] blk_mq_requeue_work+0x19f/0x1e0
[ 7044.286445] ? ftrace_stub_direct_tramp+0x10/0x10
[ 7044.291160] process_one_work+0x188/0x340
[ 7044.295194] ? ftrace_stub_direct_tramp+0x10/0x10
[ 7044.299906] worker_thread+0x257/0x3a0
[ 7044.303677] ? __pfx_worker_thread+0x10/0x10
[ 7044.307959] kthread+0xfc/0x240
[ 7044.311115] ? __pfx_kthread+0x10/0x10
[ 7044.314875] ? __pfx_kthread+0x10/0x10
[ 7044.318643] ret_from_fork+0xed/0x110
[ 7044.322319] ? __pfx_kthread+0x10/0x10
[ 7044.326083] ret_from_fork_asm+0x1a/0x30
[ 7044.330046] </TASK>
[ 7044.332243] Modules linked in: ublk_drv raid1 ext4 crc16 mbcache
jbd2 rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace
nfs_localio netfs rfkill intel_rapl_msr intel_rapl_common sunrpc
intel_uncore_frequency intel_uncore_frequency_common skx_edac
skx_edac_common nfit libnvdimm x86_pkg_temp_thermal intel_powerclamp
coretemp kvm_intel vfat fat kvm iTCO_wdt iTCO_vendor_support irqbypass
rapl intel_cstate dell_smbios ipmi_ssif platform_profile bnxt_en
mgag200 intel_uncore dcdbas tg3 dell_wmi_descriptor wmi_bmof mei_me
i2c_i801 pcspkr i2c_algo_bit mei acpi_power_meter i2c_smbus lpc_ich
intel_pch_thermal ipmi_si acpi_ipmi ipmi_devintf ipmi_msghandler sg
fuse loop dm_multipath nfnetlink xfs sd_mod nvme ahci nvme_core
libahci ghash_clmulni_intel libata nvme_keyring megaraid_sas nvme_auth
wmi dm_mirror dm_region_hash dm_log dm_mod [last unloaded: null_blk]
[ 7044.408751] CR2: 0000000000000001
[ 7044.412082] ---[ end trace 0000000000000000 ]---
[ 7044.427300] RIP: 0010:__io_req_task_work_add+0x18/0x1f0
[ 7044.432549] Code: 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
90 90 66 0f 1f 00 e8 27 5a ac 0d 41 56 41 55 41 54 55 53 48 8b 6f 60
48 89 fb <f6> 45 01 20 0f 84 8e 00 00 00 31 c0 f6 47 48 0c 0f 94 c0 21
c6 41
[ 7044.451303] RSP: 0018:ffffcf6ec3d63c50 EFLAGS: 00010292
[ 7044.456539] RAX: ffffffffc136e3b0 RBX: ffff8ecf44fb3e80 RCX: 0000000000000000
[ 7044.463681] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8ecf44fb3e80
[ 7044.470822] RBP: 0000000000000000 R08: 00000000248436de R09: ffff8ecf4409a100
[ 7044.477964] R10: 000000000000003c R11: ffff8ed2812f1180 R12: ffff8ecf44fb3e80
[ 7044.485102] R13: ffffcf6ec3d63cc8 R14: 0000000000000000 R15: ffff8ece97859310
[ 7044.492246] FS: 0000000000000000(0000) GS:ffff8ed379e45000(0000)
knlGS:0000000000000000
[ 7044.500339] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7044.506095] CR2: 0000000000000001 CR3: 000000036eb7c004 CR4: 00000000007726f0
[ 7044.513235] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 7044.520377] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 7044.527518] PKRU: 55555554
[ 7044.530241] Kernel panic - not syncing: Fatal exception
[ 7044.535536] Kernel Offset: 0x32200000 from 0xffffffff81000000
(relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 7044.557117] ---[ end Kernel panic - not syncing: Fatal exception ]---
Best Regards,
Changhui
