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Message-ID: <f5c68bc9-3c47-49a1-b336-4fe19a9f407f@amd.com>
Date: Tue, 25 Mar 2025 10:03:41 +0530
From: "Aithal, Srikanth" <sraithal@....com>
To: syzbot <syzbot+d33642573545e529ab61@...kaller.appspotmail.com>,
bhelgaas@...gle.com, linux-kernel@...r.kernel.org,
linux-next@...r.kernel.org, linux-pci@...r.kernel.org, sfr@...b.auug.org.au,
syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [pci?] linux-next test error: general protection fault
in msix_capability_init
Hello,
I tried booting host with my host config, there I am seeing different
issue but host crashes
[ 246.606736] INFO: task swapper/0:1 blocked for more than 120 seconds.
[ 246.613936] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 246.621509] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 246.630243] task:swapper/0 state:D stack:0 pid:1 tgid:1
ppid:0 task_flags:0x0140 flags:0x00004000
[ 246.642375] Call Trace:
[ 246.645099] <TASK>
[ 246.647435] __schedule+0x45e/0x14f0
[ 246.651424] ? mntput+0x28/0x40
[ 246.654924] ? path_put+0x22/0x30
[ 246.658617] schedule+0x2b/0xf0
[ 246.662116] async_synchronize_cookie_domain+0xd0/0x120
[ 246.667942] ? __pfx_autoremove_wake_function+0x10/0x10
[ 246.673769] ? __pfx_kernel_init+0x10/0x10
[ 246.678334] async_synchronize_full+0x1b/0x30
[ 246.683182] kernel_init+0x24/0x200
[ 246.687068] ret_from_fork+0x41/0x60
[ 246.691052] ? __pfx_kernel_init+0x10/0x10
[ 246.695617] ret_from_fork_asm+0x1a/0x30
[ 246.699989] RIP: 1f0f:0x0
[ 246.702907] RSP: 0000:0000000000000000 EFLAGS: 841f0f2e66 ORIG_RAX:
1f0f2e6600000000
[ 246.711546] RAX: 0000000000000000 RBX: 1f0f2e6600000000 RCX:
2e66000000000084
[ 246.719503] RDX: 0000000000841f0f RSI: 000000841f0f2e66 RDI:
00841f0f2e660000
[ 246.727460] RBP: 00841f0f2e660000 R08: 00841f0f2e660000 R09:
000000841f0f2e66
[ 246.735418] R10: 0000000000841f0f R11: 2e66000000000084 R12:
000000841f0f2e66
[ 246.743376] R13: 0000000000841f0f R14: 2e66000000000084 R15:
1f0f2e6600000000
[ 246.751335] </TASK>
[ 246.753796] INFO: task kworker/u1028:5:1665 blocked for more than 120
seconds.
[ 246.761851] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 246.769413] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 246.778137] task:kworker/u1028:5 state:D stack:0 pid:1665
tgid:1665 ppid:2 task_flags:0x4208060 flags:0x00004000
[ 246.790558] Workqueue: async async_run_entry_fn
[ 246.795608] Call Trace:
[ 246.798330] <TASK>
[ 246.800656] __schedule+0x45e/0x14f0
[ 246.804640] ? sched_clock_noinstr+0xd/0x20
[ 246.809304] ? sched_clock_cpu+0x71/0x1d0
[ 246.813773] schedule+0x2b/0xf0
[ 246.817271] schedule_timeout+0xdf/0xf0
[ 246.821545] __wait_for_common+0x93/0x180
[ 246.826013] ? __pfx_schedule_timeout+0x10/0x10
[ 246.831063] wait_for_completion+0x28/0x30
[ 246.835628] __flush_work+0x2e2/0x400
[ 246.839711] ? __pfx_wq_barrier_func+0x10/0x10
[ 246.844665] work_on_cpu_key+0x71/0x90
[ 246.848841] ? __pfx_work_for_cpu_fn+0x10/0x10
[ 246.853793] ? __pfx_local_pci_probe+0x10/0x10
[ 246.858749] pci_device_probe+0x200/0x260
[ 246.863218] really_probe+0xf1/0x3b0
[ 246.867204] __driver_probe_device+0x8c/0x170
[ 246.872058] driver_probe_device+0x24/0xd0
[ 246.876623] __driver_attach_async_helper+0x72/0x100
[ 246.882157] async_run_entry_fn+0x37/0x120
[ 246.886721] process_one_work+0x191/0x3d0
[ 246.891180] worker_thread+0x2ce/0x400
[ 246.895348] ? __pfx_worker_thread+0x10/0x10
[ 246.900096] kthread+0x101/0x230
[ 246.903693] ? __pfx_kthread+0x10/0x10
[ 246.907870] ret_from_fork+0x41/0x60
[ 246.911853] ? __pfx_kthread+0x10/0x10
[ 246.916029] ret_from_fork_asm+0x1a/0x30
[ 246.920401] </TASK>
[ 246.922832] INFO: task kworker/u1028:6:1667 blocked for more than 121
seconds.
[ 246.930887] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 246.938447] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 246.947179] task:kworker/u1028:6 state:D stack:0 pid:1667
tgid:1667 ppid:2 task_flags:0x4208060 flags:0x00004000
[ 246.959598] Workqueue: async async_run_entry_fn
[ 246.964649] Call Trace:
[ 246.967362] <TASK>
[ 246.969686] __schedule+0x45e/0x14f0
[ 246.973661] ? sched_clock_noinstr+0xd/0x20
[ 246.978322] ? sched_clock_cpu+0x71/0x1d0
[ 246.982791] schedule+0x2b/0xf0
[ 246.986289] schedule_timeout+0xdf/0xf0
[ 246.990564] __wait_for_common+0x93/0x180
[ 246.995031] ? __pfx_schedule_timeout+0x10/0x10
[ 247.000081] wait_for_completion+0x28/0x30
[ 247.004645] __flush_work+0x2e2/0x400
[ 247.008725] ? __pfx_wq_barrier_func+0x10/0x10
[ 247.013678] work_on_cpu_key+0x71/0x90
[ 247.017854] ? __pfx_work_for_cpu_fn+0x10/0x10
[ 247.022798] ? __pfx_local_pci_probe+0x10/0x10
[ 247.027751] pci_device_probe+0x200/0x260
[ 247.032219] really_probe+0xf1/0x3b0
[ 247.036192] __driver_probe_device+0x8c/0x170
[ 247.041039] driver_probe_device+0x24/0xd0
[ 247.045604] __driver_attach_async_helper+0x72/0x100
[ 247.051139] async_run_entry_fn+0x37/0x120
[ 247.055703] process_one_work+0x191/0x3d0
[ 247.060170] worker_thread+0x2ce/0x400
[ 247.064338] ? __pfx_worker_thread+0x10/0x10
[ 247.069097] kthread+0x101/0x230
[ 247.072692] ? __pfx_kthread+0x10/0x10
[ 247.076859] ret_from_fork+0x41/0x60
[ 247.080834] ? __pfx_kthread+0x10/0x10
[ 247.085010] ret_from_fork_asm+0x1a/0x30
[ 247.089381] </TASK>
[ 247.091811] INFO: task kworker/u1028:7:1669 blocked for more than 121
seconds.
[ 247.099865] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 247.107435] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 247.116167] task:kworker/u1028:7 state:D stack:0 pid:1669
tgid:1669 ppid:2 task_flags:0x4208060 flags:0x00004000
[ 247.128578] Workqueue: async async_run_entry_fn
[ 247.133626] Call Trace:
[ 247.136348] <TASK>
[ 247.138682] __schedule+0x45e/0x14f0
[ 247.142656] ? sched_clock_noinstr+0xd/0x20
[ 247.147318] ? sched_clock_cpu+0x71/0x1d0
[ 247.151777] schedule+0x2b/0xf0
[ 247.155275] schedule_timeout+0xdf/0xf0
[ 247.159549] __wait_for_common+0x93/0x180
[ 247.164008] ? __pfx_schedule_timeout+0x10/0x10
[ 247.169057] wait_for_completion+0x28/0x30
[ 247.173612] __flush_work+0x2e2/0x400
[ 247.177692] ? __pfx_wq_barrier_func+0x10/0x10
[ 247.182644] work_on_cpu_key+0x71/0x90
[ 247.186822] ? __pfx_work_for_cpu_fn+0x10/0x10
[ 247.191774] ? __pfx_local_pci_probe+0x10/0x10
[ 247.196726] pci_device_probe+0x200/0x260
[ 247.201195] really_probe+0xf1/0x3b0
[ 247.205176] __driver_probe_device+0x8c/0x170
[ 247.210030] driver_probe_device+0x24/0xd0
[ 247.214595] __driver_attach_async_helper+0x72/0x100
[ 247.220128] async_run_entry_fn+0x37/0x120
[ 247.224693] process_one_work+0x191/0x3d0
[ 247.229161] worker_thread+0x2ce/0x400
[ 247.233338] ? __pfx_worker_thread+0x10/0x10
[ 247.238097] kthread+0x101/0x230
[ 247.241693] ? __pfx_kthread+0x10/0x10
[ 247.245871] ret_from_fork+0x41/0x60
[ 247.249853] ? __pfx_kthread+0x10/0x10
[ 247.254021] ret_from_fork_asm+0x1a/0x30
[ 247.258391] </TASK>
[ 247.260813] INFO: task kworker/u1028:8:1670 blocked for more than 121
seconds.
[ 247.268868] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 247.276436] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 247.285168] task:kworker/u1028:8 state:D stack:0 pid:1670
tgid:1670 ppid:2 task_flags:0x4208060 flags:0x00004000
[ 247.297586] Workqueue: async async_run_entry_fn
[ 247.302626] Call Trace:
[ 247.305349] <TASK>
[ 247.307682] __schedule+0x45e/0x14f0
[ 247.311667] ? sched_clock_noinstr+0xd/0x20
[ 247.316329] ? sched_clock_cpu+0x71/0x1d0
[ 247.320797] schedule+0x2b/0xf0
[ 247.324294] schedule_timeout+0xdf/0xf0
[ 247.328558] __wait_for_common+0x93/0x180
[ 247.333027] ? __pfx_schedule_timeout+0x10/0x10
[ 247.338075] wait_for_completion+0x28/0x30
[ 247.342640] __flush_work+0x2e2/0x400
[ 247.346710] ? __pfx_wq_barrier_func+0x10/0x10
[ 247.351663] work_on_cpu_key+0x71/0x90
[ 247.355832] ? __pfx_work_for_cpu_fn+0x10/0x10
[ 247.360785] ? __pfx_local_pci_probe+0x10/0x10
[ 247.365737] pci_device_probe+0x200/0x260
[ 247.370205] really_probe+0xf1/0x3b0
[ 247.374186] __driver_probe_device+0x8c/0x170
[ 247.379041] driver_probe_device+0x24/0xd0
[ 247.383595] __driver_attach_async_helper+0x72/0x100
[ 247.389131] async_run_entry_fn+0x37/0x120
[ 247.393694] process_one_work+0x191/0x3d0
[ 247.398161] worker_thread+0x2ce/0x400
[ 247.402336] ? __pfx_worker_thread+0x10/0x10
[ 247.407093] kthread+0x101/0x230
[ 247.410688] ? __pfx_kthread+0x10/0x10
[ 247.414865] ret_from_fork+0x41/0x60
[ 247.418848] ? __pfx_kthread+0x10/0x10
[ 247.423015] ret_from_fork_asm+0x1a/0x30
[ 247.427387] </TASK>
[ 247.429833] INFO: task modprobe:1973 blocked for more than 121 seconds.
[ 247.437208] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 247.444778] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 247.453510] task:modprobe state:D stack:0 pid:1973
tgid:1973 ppid:1572 task_flags:0x400100 flags:0x00004002
[ 247.465831] Call Trace:
[ 247.468552] <TASK>
[ 247.470887] __schedule+0x45e/0x14f0
[ 247.474871] ? add_uevent_var+0x99/0x190
[ 247.479243] ? kobject_get_path+0x72/0x120
[ 247.483809] schedule+0x2b/0xf0
[ 247.487306] async_synchronize_cookie_domain+0xd0/0x120
[ 247.493121] ? __pfx_autoremove_wake_function+0x10/0x10
[ 247.498947] async_synchronize_full+0x1b/0x30
[ 247.503803] do_init_module+0x1f3/0x270
[ 247.508078] load_module+0x2bb4/0x2d10
[ 247.512255] ? kernel_read_file+0x2a4/0x320
[ 247.516917] init_module_from_file+0x96/0xd0
[ 247.521667] ? init_module_from_file+0x96/0xd0
[ 247.526620] idempotent_init_module+0xfc/0x2e0
[ 247.531572] __x64_sys_finit_module+0x77/0xf0
[ 247.536419] x64_sys_call+0x1f9e/0x20c0
[ 247.540694] do_syscall_64+0x6d/0x110
[ 247.544775] ? __pfx_page_put_link+0x10/0x10
[ 247.549534] ? strncpy_from_user+0x2b/0x100
[ 247.554196] ? putname+0x63/0x80
[ 247.557790] ? do_sys_openat2+0x8b/0xd0
[ 247.562067] ? __x64_sys_openat+0x58/0xa0
[ 247.566534] ? syscall_exit_to_user_mode+0x57/0x1b0
[ 247.571973] ? do_syscall_64+0x79/0x110
[ 247.576246] ? irqentry_exit+0x3f/0x50
[ 247.580423] ? exc_page_fault+0x94/0x1b0
[ 247.584793] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 247.590425] RIP: 0033:0x7f3595b5425d
[ 247.594407] RSP: 002b:00007fff77994d68 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 247.602841] RAX: ffffffffffffffda RBX: 000055edc4460b60 RCX:
00007f3595b5425d
[ 247.610790] RDX: 0000000000000000 RSI: 000055eda89bfe52 RDI:
0000000000000000
[ 247.618748] RBP: 00007fff77994e20 R08: 0000000000000040 R09:
00007fff77994db0
[ 247.626707] R10: 00007f3595c30b20 R11: 0000000000000246 R12:
000055eda89bfe52
[ 247.634665] R13: 0000000000040000 R14: 000055edc4460f60 R15:
0000000000000000
[ 247.642622] </TASK>
[ 256.846894] nvme nvme5: I/O tag 15 (100f) QID 0 timeout, completion
polled
[ 256.854920] nvme nvme6: I/O tag 3 (1003) QID 0 timeout, completion polled
[ 256.862591] nvme nvme7: I/O tag 11 (100b) QID 0 timeout, completion
polled
[ 256.870268] nvme nvme8: I/O tag 3 (1003) QID 0 timeout, completion polled
[ 318.286852] nvme nvme5: I/O tag 12 (200c) QID 0 timeout, completion
polled
[ 318.294546] nvme nvme6: I/O tag 0 (2000) QID 0 timeout, completion polled
[ 318.302129] nvme nvme7: I/O tag 8 (2008) QID 0 timeout, completion polled
[ 318.309771] nvme nvme8: I/O tag 0 (2000) QID 0 timeout, completion polled
[ 369.486768] INFO: task swapper/0:1 blocked for more than 243 seconds.
[ 369.493957] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 369.501529] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 369.510262] task:swapper/0 state:D stack:0 pid:1 tgid:1
ppid:0 task_flags:0x0140 flags:0x00004000
[ 369.522389] Call Trace:
[ 369.525110] <TASK>
[ 369.527445] __schedule+0x45e/0x14f0
[ 369.531430] ? mntput+0x28/0x40
[ 369.534929] ? path_put+0x22/0x30
[ 369.538620] schedule+0x2b/0xf0
[ 369.542118] async_synchronize_cookie_domain+0xd0/0x120
[ 369.547944] ? __pfx_autoremove_wake_function+0x10/0x10
[ 369.553769] ? __pfx_kernel_init+0x10/0x10
[ 369.558326] async_synchronize_full+0x1b/0x30
[ 369.563180] kernel_init+0x24/0x200
[ 369.567059] ret_from_fork+0x41/0x60
[ 369.571042] ? __pfx_kernel_init+0x10/0x10
[ 369.575598] ret_from_fork_asm+0x1a/0x30
[ 369.579960] RIP: 1f0f:0x0
[ 369.582876] RSP: 0000:0000000000000000 EFLAGS: 841f0f2e66 ORIG_RAX:
1f0f2e6600000000
[ 369.591512] RAX: 0000000000000000 RBX: 1f0f2e6600000000 RCX:
2e66000000000084
[ 369.599469] RDX: 0000000000841f0f RSI: 000000841f0f2e66 RDI:
00841f0f2e660000
[ 369.607427] RBP: 00841f0f2e660000 R08: 00841f0f2e660000 R09:
000000841f0f2e66
[ 369.615384] R10: 0000000000841f0f R11: 2e66000000000084 R12:
000000841f0f2e66
[ 369.623340] R13: 0000000000841f0f R14: 2e66000000000084 R15:
1f0f2e6600000000
[ 369.631299] </TASK>
[ 369.633778] INFO: task kworker/u1028:5:1665 blocked for more than 243
seconds.
[ 369.641833] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 369.649394] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 369.658128] task:kworker/u1028:5 state:D stack:0 pid:1665
tgid:1665 ppid:2 task_flags:0x4208060 flags:0x00004000
[ 369.670547] Workqueue: async async_run_entry_fn
[ 369.675596] Call Trace:
[ 369.678317] <TASK>
[ 369.680652] __schedule+0x45e/0x14f0
[ 369.684636] ? sched_clock_noinstr+0xd/0x20
[ 369.689299] ? sched_clock_cpu+0x71/0x1d0
[ 369.693766] schedule+0x2b/0xf0
[ 369.697254] schedule_timeout+0xdf/0xf0
[ 369.701519] __wait_for_common+0x93/0x180
[ 369.705979] ? __pfx_schedule_timeout+0x10/0x10
[ 369.711028] wait_for_completion+0x28/0x30
[ 369.715592] __flush_work+0x2e2/0x400
[ 369.719672] ? __pfx_wq_barrier_func+0x10/0x10
[ 369.724625] work_on_cpu_key+0x71/0x90
[ 369.728801] ? __pfx_work_for_cpu_fn+0x10/0x10
[ 369.733754] ? __pfx_local_pci_probe+0x10/0x10
[ 369.738707] pci_device_probe+0x200/0x260
[ 369.743175] really_probe+0xf1/0x3b0
[ 369.747148] __driver_probe_device+0x8c/0x170
[ 369.751996] driver_probe_device+0x24/0xd0
[ 369.756560] __driver_attach_async_helper+0x72/0x100
[ 369.762094] async_run_entry_fn+0x37/0x120
[ 369.766649] process_one_work+0x191/0x3d0
[ 369.771116] worker_thread+0x2ce/0x400
[ 369.775292] ? __pfx_worker_thread+0x10/0x10
[ 369.780042] kthread+0x101/0x230
[ 369.783638] ? __pfx_kthread+0x10/0x10
[ 369.787814] ret_from_fork+0x41/0x60
[ 369.791788] ? __pfx_kthread+0x10/0x10
[ 369.795965] ret_from_fork_asm+0x1a/0x30
[ 369.800336] </TASK>
[ 369.802759] INFO: task kworker/u1028:6:1667 blocked for more than 244
seconds.
[ 369.810813] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 369.818384] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 369.827116] task:kworker/u1028:6 state:D stack:0 pid:1667
tgid:1667 ppid:2 task_flags:0x4208060 flags:0x00004000
[ 369.839526] Workqueue: async async_run_entry_fn
[ 369.844574] Call Trace:
[ 369.847294] <TASK>
[ 369.849628] __schedule+0x45e/0x14f0
[ 369.853602] ? sched_clock_noinstr+0xd/0x20
[ 369.858264] ? sched_clock_cpu+0x71/0x1d0
[ 369.862722] schedule+0x2b/0xf0
[ 369.866211] schedule_timeout+0xdf/0xf0
[ 369.870476] __wait_for_common+0x93/0x180
[ 369.874934] ? __pfx_schedule_timeout+0x10/0x10
[ 369.879985] wait_for_completion+0x28/0x30
[ 369.884549] __flush_work+0x2e2/0x400
[ 369.888628] ? __pfx_wq_barrier_func+0x10/0x10
[ 369.893573] work_on_cpu_key+0x71/0x90
[ 369.897750] ? __pfx_work_for_cpu_fn+0x10/0x10
[ 369.902703] ? __pfx_local_pci_probe+0x10/0x10
[ 369.907656] pci_device_probe+0x200/0x260
[ 369.912125] really_probe+0xf1/0x3b0
[ 369.916107] __driver_probe_device+0x8c/0x170
[ 369.920955] driver_probe_device+0x24/0xd0
[ 369.925519] __driver_attach_async_helper+0x72/0x100
[ 369.931053] async_run_entry_fn+0x37/0x120
[ 369.935607] process_one_work+0x191/0x3d0
[ 369.940075] worker_thread+0x2ce/0x400
[ 369.944244] ? __pfx_worker_thread+0x10/0x10
[ 369.949002] kthread+0x101/0x230
[ 369.952598] ? __pfx_kthread+0x10/0x10
[ 369.956774] ret_from_fork+0x41/0x60
[ 369.960747] ? __pfx_kthread+0x10/0x10
[ 369.964923] ret_from_fork_asm+0x1a/0x30
[ 369.969294] </TASK>
[ 369.971715] INFO: task kworker/u1028:7:1669 blocked for more than 244
seconds.
[ 369.979771] Not tainted 6.14.0-rc7-next-20250324-882a18c2c1-base #1
[ 369.987340] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
disables this message.
[ 369.996073] task:kworker/u1028:7 state:D stack:0 pid:1669
tgid:1669 ppid:2 task_flags:0x4208060 flags:0x00004000
[ 370.008492] Workqueue: async async_run_entry_fn
[ 370.013541] Call Trace:
[ 370.016261] <TASK>
[ 370.018595] __schedule+0x45e/0x14f0
[ 370.022579] ? sched_clock_noinstr+0xd/0x20
[ 370.027241] ? sched_clock_cpu+0x71/0x1d0
[ 370.031708] schedule+0x2b/0xf0
[ 370.035198] schedule_timeout+0xdf/0xf0
[ 370.039471] __wait_for_common+0x93/0x180
[ 370.043938] ? __pfx_schedule_timeout+0x10/0x10
[ 370.048987] wait_for_completion+0x28/0x30
[ 370.053551] __flush_work+0x2e2/0x400
[ 370.057621] ? __pfx_wq_barrier_func+0x10/0x10
[ 370.062565] work_on_cpu_key+0x71/0x90
[ 370.066741] ? __pfx_work_for_cpu_fn+0x10/0x10
[ 370.071684] ? __pfx_local_pci_probe+0x10/0x10
[ 370.076637] pci_device_probe+0x200/0x260
[ 370.081105] really_probe+0xf1/0x3b0
[ 370.085087] __driver_probe_device+0x8c/0x170
[ 370.089942] driver_probe_device+0x24/0xd0
[ 370.094498] __driver_attach_async_helper+0x72/0x100
[ 370.100022] async_run_entry_fn+0x37/0x120
[ 370.104586] process_one_work+0x191/0x3d0
[ 370.109053] worker_thread+0x2ce/0x400
[ 370.113230] ? __pfx_worker_thread+0x10/0x10
[ 370.117989] kthread+0x101/0x230
[ 370.121584] ? __pfx_kthread+0x10/0x10
[ 370.125753] ret_from_fork+0x41/0x60
[ 370.129737] ? __pfx_kthread+0x10/0x10
[ 370.133914] ret_from_fork_asm+0x1a/0x30
[ 370.138285] </TASK>
[ 370.140707] Future hung task reports are suppressed, see sysctl
kernel.hung_task_warnings
On 3/25/2025 9:25 AM, Aithal, Srikanth wrote:
> Hello,
>
> Even I hit similar crash while boot a KVM guest with next-20250325 kernel.
>
> [ 1.472006] BUG: kernel NULL pointer dereference, address:
> 0000000000000000
> [ 1.472243] #PF: supervisor read access in kernel mode
> [ 1.472243] #PF: error_code(0x0000) - not-present page
> [ 1.472243] PGD 0 P4D 0
> [ 1.472243] Oops: Oops: 0000 [#1] SMP NOPTI
> [ 1.472243] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.14.0-
> rc7-next-20250324 #10 PREEMPT(voluntary)
> [ 1.472243] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
> unknown 02/02/2022
> [ 1.472243] RIP: 0010:msix_prepare_msi_desc+0x2f/0x80
> [ 1.472243] Code: 00 00 48 89 f0 48 8b 52 20 66 81 4e 4c 01 01 c7 46
> 04 01 00 00 00 8b 8f 94 03 00 00 89 4e 50 48 8b b7 a8 07 00 00 48 89 70
> 58 <8b> 0a 31 d2 81 e1 00 00 40 00 75 0c 0f b6 50 4d d0 ea 83 f2 01 83
> [ 1.472243] RSP: 0018:ffffa1b940027988 EFLAGS: 00010202
> [ 1.472243] RAX: ffffa1b9400279c8 RBX: 0000000000000000 RCX:
> 0000000000000017
> [ 1.472243] RDX: 0000000000000000 RSI: ffffa1b940089000 RDI:
> ffff8b73c55ed000
> [ 1.472243] RBP: ffffa1b9400279c8 R08: 0000000000000002 R09:
> ffffa1b94002795c
> [ 1.472243] R10: 0000000000000000 R11: ffffffff98493250 R12:
> ffff8b73d8fb0000
> [ 1.472243] R13: 0000000000000000 R14: ffff8b73c55ed0c0 R15:
> 0000000000000100
> [ 1.472243] FS: 0000000000000000(0000) GS:ffff8b7494849000(0000)
> knlGS:0000000000000000
> [ 1.472243] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 1.472243] CR2: 0000000000000000 CR3: 0008000073e44000 CR4:
> 00000000003506f0
> [ 1.472243] Call Trace:
> [ 1.472243] <TASK>
> [ 1.472243] ? __die+0x1a/0x60
> [ 1.472243] ? page_fault_oops+0x153/0x500
> [ 1.472243] ? srso_return_thunk+0x5/0x5f
> [ 1.472243] ? do_user_addr_fault+0x5f/0x680
> [ 1.472243] ? srso_return_thunk+0x5/0x5f
> [ 1.472243] ? exc_page_fault+0x66/0x140
> [ 1.472243] ? asm_exc_page_fault+0x22/0x30
> [ 1.472243] ? __pfx_pci_conf1_read+0x10/0x10
> [ 1.472243] ? msix_prepare_msi_desc+0x2f/0x80
> [ 1.472243] ? srso_return_thunk+0x5/0x5f
> [ 1.472243] __pci_enable_msix_range+0x37f/0x650
> [ 1.472243] pci_alloc_irq_vectors_affinity+0xa2/0x100
> [ 1.472243] vp_find_vqs_msix+0x188/0x470
> [ 1.472243] vp_find_vqs+0x36/0x260
> [ 1.472243] ? srso_return_thunk+0x5/0x5f
> [ 1.472243] vp_modern_find_vqs+0xe/0x60
> [ 1.472243] init_vq+0x348/0x3a0
> [ 1.472243] ? __pfx_default_calc_sets+0x10/0x10
> [ 1.472243] virtblk_probe+0x108/0xa20
> [ 1.472243] ? srso_return_thunk+0x5/0x5f
> [ 1.472243] ? ct_nmi_exit+0xbf/0x1d0
> [ 1.472243] virtio_dev_probe+0x1aa/0x260
> [ 1.472243] really_probe+0xbe/0x2c0
> [ 1.472243] ? __pfx___driver_attach+0x10/0x10
> [ 1.472243] __driver_probe_device+0x6e/0x110
> [ 1.472243] driver_probe_device+0x1a/0xe0
> [ 1.472243] __driver_attach+0x7f/0x180
> [ 1.472243] bus_for_each_dev+0x6d/0xc0
> [ 1.472243] bus_add_driver+0xdf/0x210
> [ 1.472243] driver_register+0x50/0x100
> [ 1.472243] virtio_blk_init+0x47/0x90
> [ 1.472243] ? __pfx_virtio_blk_init+0x10/0x10
> [ 1.472243] do_one_initcall+0x3e/0x200
> [ 1.472243] ? __x86_indirect_jump_thunk_r14+0x20/0x20
> [ 1.472243] kernel_init_freeable+0x199/0x2d0
> [ 1.472243] ? __pfx_kernel_init+0x10/0x10
> [ 1.472243] kernel_init+0x11/0x1b0
> [ 1.472243] ret_from_fork+0x2b/0x40
> [ 1.472243] ? __pfx_kernel_init+0x10/0x10
> [ 1.472243] ret_from_fork_asm+0x1a/0x30
> [ 1.472243] </TASK>
> [ 1.472243] Modules linked in:
> [ 1.472243] CR2: 0000000000000000
> [ 1.472243] ---[ end trace 0000000000000000 ]---
> [ 1.472243] RIP: 0010:msix_prepare_msi_desc+0x2f/0x80
> [ 1.472243] Code: 00 00 48 89 f0 48 8b 52 20 66 81 4e 4c 01 01 c7 46
> 04 01 00 00 00 8b 8f 94 03 00 00 89 4e 50 48 8b b7 a8 07 00 00 48 89 70
> 58 <8b> 0a 31 d2 81 e1 00 00 40 00 75 0c 0f b6 50 4d d0 ea 83 f2 01 83
> [ 1.472243] RSP: 0018:ffffa1b940027988 EFLAGS: 00010202
> [ 1.472243] RAX: ffffa1b9400279c8 RBX: 0000000000000000 RCX:
> 0000000000000017
> [ 1.472243] RDX: 0000000000000000 RSI: ffffa1b940089000 RDI:
> ffff8b73c55ed000
> [ 1.472243] RBP: ffffa1b9400279c8 R08: 0000000000000002 R09:
> ffffa1b94002795c
> [ 1.472243] R10: 0000000000000000 R11: ffffffff98493250 R12:
> ffff8b73d8fb0000
> [ 1.472243] R13: 0000000000000000 R14: ffff8b73c55ed0c0 R15:
> 0000000000000100
> [ 1.472243] FS: 0000000000000000(0000) GS:ffff8b7494849000(0000)
> knlGS:0000000000000000
> [ 1.472243] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 1.472243] CR2: 0000000000000000 CR3: 0008000073e44000 CR4:
> 00000000003506f0
> [ 1.472243] note: swapper/0[1] exited with irqs disabled
> [ 1.509205] Kernel panic - not syncing: Attempted to kill init!
> exitcode=0x00000009
> [ 1.510194] Kernel Offset: 0x16200000 from 0xffffffff81000000
> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [ 1.510194] ---[ end Kernel panic - not syncing: Attempted to kill
> init! exitcode=0x00000009 ]---
>
>
> The guest kernel was built using the attached kernel config file.
>
>
> On 3/25/2025 5:28 AM, syzbot wrote:
>> Hello,
>>
>> syzbot found the following issue on:
>>
>> HEAD commit: 882a18c2c14f Add linux-next specific files for 20250324
>> git tree: linux-next
>> console output: https://syzkaller.appspot.com/x/log.txt?x=17d24804580000
>> kernel config: https://syzkaller.appspot.com/x/.config?
>> x=30e7faf61be4d27e
>> dashboard link: https://syzkaller.appspot.com/bug?
>> extid=d33642573545e529ab61
>> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for
>> Debian) 2.40
>>
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/ea720fb0d677/
>> disk-882a18c2.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/723a320ec217/
>> vmlinux-882a18c2.xz
>> kernel image: https://storage.googleapis.com/syzbot-
>> assets/4f23b2e1eb2c/bzImage-882a18c2.xz
>>
>> IMPORTANT: if you fix the issue, please add the following tag to the
>> commit:
>> Reported-by: syzbot+d33642573545e529ab61@...kaller.appspotmail.com
>>
>> ntfs3: Enabled Linux POSIX ACLs support
>> ntfs3: Read-only LZX/Xpress compression included
>> efs: 1.0a - http://aeschi.ch.eu.org/efs/
>> jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
>> romfs: ROMFS MTD (C) 2007 Red Hat, Inc.
>> QNX4 filesystem 0.2.3 registered.
>> qnx6: QNX6 filesystem 1.0.0 registered.
>> fuse: init (API version 7.43)
>> orangefs_debugfs_init: called with debug mask: :none: :0:
>> orangefs_init: module version upstream loaded
>> JFS: nTxBlock = 8192, nTxLock = 65536
>> SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled
>> 9p: Installing v9fs 9p2000 file system support
>> NILFS version 2 loaded
>> befs: version: 0.9.3
>> ocfs2: Registered cluster interface o2cb
>> ocfs2: Registered cluster interface user
>> OCFS2 User DLM kernel interface loaded
>> gfs2: GFS2 installed
>> ceph: loaded (mds proto 32)
>> NET: Registered PF_ALG protocol family
>> xor: automatically using best checksumming function avx
>> async_tx: api initialized (async)
>> Key type asymmetric registered
>> Asymmetric key parser 'x509' registered
>> Asymmetric key parser 'pkcs8' registered
>> Key type pkcs7_test registered
>> Block layer SCSI generic (bsg) driver version 0.4 loaded (major 238)
>> io scheduler mq-deadline registered
>> io scheduler kyber registered
>> io scheduler bfq registered
>> input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
>> ACPI: button: Power Button [PWRF]
>> input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1
>> ACPI: button: Sleep Button [SLPF]
>> ioatdma: Intel(R) QuickData Technology Driver 5.00
>> ACPI: \_SB_.LNKC: Enabled at IRQ 11
>> virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver
>> ACPI: \_SB_.LNKD: Enabled at IRQ 10
>> virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver
>> ACPI: \_SB_.LNKB: Enabled at IRQ 10
>> virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver
>> virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver
>> N_HDLC line discipline registered with maxframe=4096
>> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>> 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
>> 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A
>> 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A
>> 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A
>> Non-volatile memory driver v1.3
>> Oops: general protection fault, probably for non-canonical address
>> 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
>> KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
>> CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.14.0-rc7-
>> next-20250324-syzkaller #0 PREEMPT(full)
>> Hardware name: Google Google Compute Engine/Google Compute Engine,
>> BIOS Google 02/12/2025
>> RIP: 0010:msix_prepare_msi_desc drivers/pci/msi/msi.c:616 [inline]
>> RIP: 0010:msix_setup_msi_descs drivers/pci/msi/msi.c:640 [inline]
>> RIP: 0010:msix_setup_interrupts drivers/pci/msi/msi.c:680 [inline]
>> RIP: 0010:msix_capability_init+0x7a9/0x1550 drivers/pci/msi/msi.c:743
>> Code: 10 00 74 0f e8 28 9f de fc 48 ba 00 00 00 00 00 fc ff df 48 89
>> 9c 24 d0 00 00 00 48 89 9c 24 98 01 00 00 4c 89 f0 48 c1 e8 03 <0f> b6
>> 04 10 84 c0 0f 85 86 02 00 00 41 8b 1e be 00 00 40 00 21 de
>> RSP: 0000:ffffc90000066ee0 EFLAGS: 00010246
>> RAX: 0000000000000000 RBX: ffffc9000009e008 RCX: ffff8881412b8000
>> RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90000067078
>> RBP: ffffc90000067138 R08: ffffffff854ea585 R09: 0000000000000000
>> R10: ffffc90000067020 R11: fffff5200000ce10 R12: 0000000000000000
>> R13: 0000000000000101 R14: 0000000000000000 R15: 1ffff9200000ce0d
>> FS: 0000000000000000(0000) GS:ffff888124fc0000(0000)
>> knlGS:0000000000000000
>> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> CR2: ffff88823ffff000 CR3: 000000000eb38000 CR4: 00000000003526f0
>> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
>> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
>> Call Trace:
>> <TASK>
>> __pci_enable_msix_range+0x5c7/0x710 drivers/pci/msi/msi.c:851
>> pci_alloc_irq_vectors_affinity+0x10e/0x2b0 drivers/pci/msi/api.c:270
>> vp_request_msix_vectors drivers/virtio/virtio_pci_common.c:160 [inline]
>> vp_find_vqs_msix+0x5da/0xeb0 drivers/virtio/virtio_pci_common.c:417
>> vp_find_vqs+0xa0/0x7e0 drivers/virtio/virtio_pci_common.c:525
>> virtio_find_vqs include/linux/virtio_config.h:226 [inline]
>> virtio_find_single_vq include/linux/virtio_config.h:237 [inline]
>> probe_common+0x37b/0x6b0 drivers/char/hw_random/virtio-rng.c:155
>> virtio_dev_probe+0x931/0xc80 drivers/virtio/virtio.c:341
>> really_probe+0x2b9/0xad0 drivers/base/dd.c:658
>> __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
>> driver_probe_device+0x50/0x430 drivers/base/dd.c:830
>> __driver_attach+0x45f/0x710 drivers/base/dd.c:1216
>> bus_for_each_dev+0x23e/0x2b0 drivers/base/bus.c:370
>> bus_add_driver+0x346/0x670 drivers/base/bus.c:678
>> driver_register+0x23a/0x320 drivers/base/driver.c:249
>> do_one_initcall+0x24a/0x940 init/main.c:1257
>> do_initcall_level+0x157/0x210 init/main.c:1319
>> do_initcalls+0x71/0xd0 init/main.c:1335
>> kernel_init_freeable+0x432/0x5d0 init/main.c:1567
>> kernel_init+0x1d/0x2b0 init/main.c:1457
>> ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
>> ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
>> </TASK>
>> Modules linked in:
>> ---[ end trace 0000000000000000 ]---
>> RIP: 0010:msix_prepare_msi_desc drivers/pci/msi/msi.c:616 [inline]
>> RIP: 0010:msix_setup_msi_descs drivers/pci/msi/msi.c:640 [inline]
>> RIP: 0010:msix_setup_interrupts drivers/pci/msi/msi.c:680 [inline]
>> RIP: 0010:msix_capability_init+0x7a9/0x1550 drivers/pci/msi/msi.c:743
>> Code: 10 00 74 0f e8 28 9f de fc 48 ba 00 00 00 00 00 fc ff df 48 89
>> 9c 24 d0 00 00 00 48 89 9c 24 98 01 00 00 4c 89 f0 48 c1 e8 03 <0f> b6
>> 04 10 84 c0 0f 85 86 02 00 00 41 8b 1e be 00 00 40 00 21 de
>> RSP: 0000:ffffc90000066ee0 EFLAGS: 00010246
>> RAX: 0000000000000000 RBX: ffffc9000009e008 RCX: ffff8881412b8000
>> RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90000067078
>> RBP: ffffc90000067138 R08: ffffffff854ea585 R09: 0000000000000000
>> R10: ffffc90000067020 R11: fffff5200000ce10 R12: 0000000000000000
>> R13: 0000000000000101 R14: 0000000000000000 R15: 1ffff9200000ce0d
>> FS: 0000000000000000(0000) GS:ffff8881250c0000(0000)
>> knlGS:0000000000000000
>> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> CR2: 0000000000000000 CR3: 000000000eb38000 CR4: 00000000003526f0
>> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
>> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
>> ----------------
>> Code disassembly (best guess):
>> 0: 10 00 adc %al,(%rax)
>> 2: 74 0f je 0x13
>> 4: e8 28 9f de fc call 0xfcde9f31
>> 9: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
>> 10: fc ff df
>> 13: 48 89 9c 24 d0 00 00 mov %rbx,0xd0(%rsp)
>> 1a: 00
>> 1b: 48 89 9c 24 98 01 00 mov %rbx,0x198(%rsp)
>> 22: 00
>> 23: 4c 89 f0 mov %r14,%rax
>> 26: 48 c1 e8 03 shr $0x3,%rax
>> * 2a: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax <--
>> trapping instruction
>> 2e: 84 c0 test %al,%al
>> 30: 0f 85 86 02 00 00 jne 0x2bc
>> 36: 41 8b 1e mov (%r14),%ebx
>> 39: be 00 00 40 00 mov $0x400000,%esi
>> 3e: 21 de and %ebx,%esi
>>
>>
>> ---
>> This report is generated by a bot. It may contain errors.
>> See https://goo.gl/tpsmEJ for more information about syzbot.
>> syzbot engineers can be reached at syzkaller@...glegroups.com.
>>
>> syzbot will keep track of this issue. See:
>> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>>
>> If the report is already addressed, let syzbot know by replying with:
>> #syz fix: exact-commit-title
>>
>> If you want to overwrite report's subsystems, reply with:
>> #syz set subsystems: new-subsystem
>> (See the list of subsystem names on the web dashboard)
>>
>> If the report is a duplicate of another one, reply with:
>> #syz dup: exact-subject-of-another-report
>>
>> If you want to undo deduplication, reply with:
>> #syz undup
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