This looks pretty odd to me. I can't really see anything that would cause an atomic context (spinlock, irq disabling) anywhere near blk_trace_ioctl. On Sat, Jun 18, 2022 at 05:16:23AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 6012273897fe Add linux-next specific files for 20220615 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=16406cb0080000 > kernel config: https://syzkaller.appspot.com/x/.config?x=b4154677977b1776 > dashboard link: https://syzkaller.appspot.com/bug?extid=4fe838aeddc9710946ca > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > Unfortunately, I don't have any reproducer for this issue yet. > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+4fe838aeddc9710946ca@xxxxxxxxxxxxxxxxxxxxxxxxx > > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 1, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Not tainted 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 1, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 1, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 1, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > relay_alloc_buf kernel/relay.c:124 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x2a7/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > preempt_count: 2, expected: 0 > RCU nest depth: 0, expected: 0 > 2 locks held by syz-executor.5/10461: > #0: ffff888146a4f718 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_ioctl+0xa9/0x270 kernel/trace/blktrace.c:735 > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] > #1: ffffffff8bdee228 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 > Preemption disabled at: > [<ffffffff81bc96e5>] rmqueue_pcplist mm/page_alloc.c:3813 [inline] > [<ffffffff81bc96e5>] rmqueue mm/page_alloc.c:3858 [inline] > [<ffffffff81bc96e5>] get_page_from_freelist+0x455/0x3a20 mm/page_alloc.c:4293 > CPU: 0 PID: 10461 Comm: syz-executor.5 Tainted: G W 5.19.0-rc2-next-20220615-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > __might_resched.cold+0x222/0x26b kernel/sched/core.c:9823 > might_alloc include/linux/sched/mm.h:274 [inline] > prepare_alloc_pages+0x3d8/0x570 mm/page_alloc.c:5290 > __alloc_pages+0x145/0x510 mm/page_alloc.c:5501 > alloc_pages+0x1aa/0x310 mm/mempolicy.c:2279 > __get_free_pages+0x8/0x40 mm/page_alloc.c:5561 > kasan_populate_vmalloc_pte mm/kasan/shadow.c:271 [inline] > kasan_populate_vmalloc_pte+0x25/0x160 mm/kasan/shadow.c:262 > apply_to_pte_range mm/memory.c:2648 [inline] > apply_to_pmd_range mm/memory.c:2692 [inline] > apply_to_pud_range mm/memory.c:2728 [inline] > apply_to_p4d_range mm/memory.c:2764 [inline] > __apply_to_page_range+0x68c/0x1030 mm/memory.c:2798 > alloc_vmap_area+0xacf/0x1d30 mm/vmalloc.c:1625 > __get_vm_area_node+0x142/0x3f0 mm/vmalloc.c:2483 > get_vm_area_caller mm/vmalloc.c:2536 [inline] > vmap+0x131/0x330 mm/vmalloc.c:2831 > relay_alloc_buf kernel/relay.c:129 [inline] > relay_create_buf kernel/relay.c:165 [inline] > relay_open_buf.part.0+0x4b2/0xc00 kernel/relay.c:387 > relay_open_buf kernel/relay.c:384 [inline] > relay_open kernel/relay.c:520 [inline] > relay_open+0x4fb/0xa00 kernel/relay.c:477 > do_blk_trace_setup+0x4bc/0xb60 kernel/trace/blktrace.c:559 > __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:599 > blk_trace_ioctl+0x13b/0x270 kernel/trace/blktrace.c:740 > blkdev_ioctl+0x181/0x800 block/ioctl.c:603 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:870 [inline] > __se_sys_ioctl fs/ioctl.c:856 [inline] > __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x46/0xb0 > RIP: 0033:0x7f2933089109 > Code: Unable to access opcode bytes at RIP 0x7f29330890df. > RSP: 002b:00007f2934150168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f293319bf60 RCX: 00007f2933089109 > RDX: 0000000020000080 RSI: 00000000c0481273 RDI: 0000000000000003 > RBP: 00007f29330e305d R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007ffe5646271f R14: 00007f2934150300 R15: 0000000000022000 > </TASK> > BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 > in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 10461, name: syz-executor.5 > > > --- > 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@xxxxxxxxxxxxxxxx. > > syzbot will keep track of this issue. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. ---end quoted text---
