INFO: task syz.7.23:7043 blocked for more than 143 seconds.
      Not tainted 6.17.0-rc2-syzkaller-gc17b750b3ad9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.23        state:D stack:27880 pid:7043  tgid:7041  ppid:6899   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x81b/0x1060 kernel/locking/mutex.c:760
 blk_trace_setup+0xd7/0x1b0 kernel/trace/blktrace.c:613
 sg_ioctl_common drivers/scsi/sg.c:1114 [inline]
 sg_ioctl+0x7d7/0x2880 drivers/scsi/sg.c:1156
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f581d18d169
RSP: 002b:00007f581df04038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f581d3a5fa0 RCX: 00007f581d18d169
RDX: 0000400000000040 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007f581d20e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f581d3a5fa0 R15: 00007ffe26144c08
 </TASK>
INFO: task syz.7.23:7045 blocked for more than 143 seconds.
      Not tainted 6.17.0-rc2-syzkaller-gc17b750b3ad9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.23        state:D stack:29336 pid:7045  tgid:7041  ppid:6899   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x81b/0x1060 kernel/locking/mutex.c:760
 blk_trace_remove+0x1f/0x40 kernel/trace/blktrace.c:406
 sg_ioctl_common drivers/scsi/sg.c:1122 [inline]
 sg_ioctl+0x9c9/0x2880 drivers/scsi/sg.c:1156
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f581d18d169
RSP: 002b:00007f581c3fe038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f581d3a6080 RCX: 00007f581d18d169
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003
RBP: 00007f581d20e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f581d3a6080 R15: 00007ffe26144c08
 </TASK>
INFO: task syz.8.24:7055 blocked for more than 143 seconds.
      Not tainted 6.17.0-rc2-syzkaller-gc17b750b3ad9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.24        state:D stack:28312 pid:7055  tgid:7054  ppid:6900   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x81b/0x1060 kernel/locking/mutex.c:760
 blk_trace_setup+0xd7/0x1b0 kernel/trace/blktrace.c:613
 sg_ioctl_common drivers/scsi/sg.c:1114 [inline]
 sg_ioctl+0x7d7/0x2880 drivers/scsi/sg.c:1156
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffa3598d169
RSP: 002b:00007ffa36873038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffa35ba5fa0 RCX: 00007ffa3598d169
RDX: 0000400000000040 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007ffa35a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffa35ba5fa0 R15: 00007ffc46e961a8
 </TASK>
INFO: task syz.8.24:7057 blocked for more than 144 seconds.
      Not tainted 6.17.0-rc2-syzkaller-gc17b750b3ad9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.24        state:D stack:29336 pid:7057  tgid:7054  ppid:6900   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x81b/0x1060 kernel/locking/mutex.c:760
 blk_trace_remove+0x1f/0x40 kernel/trace/blktrace.c:406
 sg_ioctl_common drivers/scsi/sg.c:1122 [inline]
 sg_ioctl+0x9c9/0x2880 drivers/scsi/sg.c:1156
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffa3598d169
RSP: 002b:00007ffa36852038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffa35ba6080 RCX: 00007ffa3598d169
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003
RBP: 00007ffa35a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007ffa35ba6080 R15: 00007ffc46e961a8
 </TASK>
INFO: task syz.9.25:7063 blocked for more than 144 seconds.
      Not tainted 6.17.0-rc2-syzkaller-gc17b750b3ad9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.25        state:D stack:28088 pid:7063  tgid:7062  ppid:6924   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x81b/0x1060 kernel/locking/mutex.c:760
 blk_trace_setup+0xd7/0x1b0 kernel/trace/blktrace.c:613
 sg_ioctl_common drivers/scsi/sg.c:1114 [inline]
 sg_ioctl+0x7d7/0x2880 drivers/scsi/sg.c:1156
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f74cd98d169
RSP: 002b:00007f74ce802038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f74cdba5fa0 RCX: 00007f74cd98d169
RDX: 0000400000000040 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007f74cda0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f74cdba5fa0 R15: 00007ffeb4f9acb8
 </TASK>
INFO: task syz.9.25:7064 blocked for more than 145 seconds.
      Not tainted 6.17.0-rc2-syzkaller-gc17b750b3ad9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.25        state:D stack:29200 pid:7064  tgid:7062  ppid:6924   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7058
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7115
 __mutex_lock_common kernel/locking/mutex.c:676 [inline]
 __mutex_lock+0x81b/0x1060 kernel/locking/mutex.c:760
 blk_trace_remove+0x1f/0x40 kernel/trace/blktrace.c:406
 sg_ioctl_common drivers/scsi/sg.c:1122 [inline]
 sg_ioctl+0x9c9/0x2880 drivers/scsi/sg.c:1156
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f74cd98d169
RSP: 002b:00007f74ce7e1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f74cdba6080 RCX: 00007f74cd98d169
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003
RBP: 00007f74cda0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f74cdba6080 R15: 00007ffeb4f9acb8
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.17.0-rc2-syzkaller-gc17b750b3ad9 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline]
 watchdog+0xf0e/0x1260 kernel/hung_task.c:491
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 7011 Comm: syz.6.22 Not tainted 6.17.0-rc2-syzkaller-gc17b750b3ad9 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:unwind_next_frame+0x1582/0x20a0 arch/x86/kernel/unwind_orc.c:648
Code: 02 48 89 f8 48 c1 e8 03 0f b6 34 10 48 8d 41 03 49 89 c0 49 c1 e8 03 41 0f b6 14 10 49 89 f8 41 83 e0 07 44 38 c6 41 0f 9e c0 <40> 84 f6 40 0f 95 c6 41 84 f0 0f 85 47 08 00 00 83 e0 07 38 c2 40
RSP: 0018:ffffc900031e78f0 EFLAGS: 00000293
RAX: ffffffff91488ffb RBX: 0000000000000001 RCX: ffffffff91488ff8
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff91488ffa
RBP: ffffc900031e79a8 R08: 0000000000000001 R09: 0000000000000000
R10: ffffc900031e7960 R11: 000000000000c388 R12: ffffc900031e79b0
R13: ffffc900031e7960 R14: ffffc900031e7d28 R15: ffffc900031e7994
FS:  00007fecf81f66c0(0000) GS:ffff8881247bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ccfa017be0 CR3: 00000000a2b08000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 save_stack+0x160/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:308
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895
 relay_destroy_buf+0x11f/0x3e0 kernel/relay.c:200
 relay_remove_buf kernel/relay.c:220 [inline]
 kref_put include/linux/kref.h:65 [inline]
 relay_close_buf+0x144/0x1a0 kernel/relay.c:435
 relay_close kernel/relay.c:664 [inline]
 relay_close+0x356/0x540 kernel/relay.c:650
 blk_trace_free+0x37/0x170 kernel/trace/blktrace.c:316
 blk_trace_cleanup kernel/trace/blktrace.c:384 [inline]
 __blk_trace_remove+0x7f/0x140 kernel/trace/blktrace.c:397
 blk_trace_remove+0x27/0x40 kernel/trace/blktrace.c:407
 sg_ioctl_common drivers/scsi/sg.c:1122 [inline]
 sg_ioctl+0x9c9/0x2880 drivers/scsi/sg.c:1156
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fecf738d169
Code: Unable to access opcode bytes at 0x7fecf738d13f.
RSP: 002b:00007fecf81f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fecf75a6080 RCX: 00007fecf738d169
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003
RBP: 00007fecf740e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fecf75a6080 R15: 00007ffe8cb07cd8
 </TASK>