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INFO: task syz-executor.1:30162 blocked for more than 143 seconds. Not tainted 6.7.0-syzkaller-01367-g35f11a3710cd #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:23792 pid:30162 tgid:30160 ppid:14471 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5399 [inline] __schedule+0x177f/0x4960 kernel/sched/core.c:6726 __schedule_loop kernel/sched/core.c:6801 [inline] schedule+0x149/0x260 kernel/sched/core.c:6816 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6873 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x703/0xa40 kernel/locking/rwsem.c:1528 inode_lock_shared include/linux/fs.h:812 [inline] btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:370 btrfs_direct_write fs/btrfs/file.c:1484 [inline] btrfs_do_write_iter+0x4f9/0x1190 fs/btrfs/file.c:1684 call_write_iter include/linux/fs.h:2085 [inline] iter_file_splice_write+0xa64/0x1320 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0xf6/0x1e0 fs/splice.c:1164 splice_direct_to_actor+0x54e/0xc80 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x28c/0x3e0 fs/splice.c:1233 do_sendfile+0x56d/0xdb0 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1348 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f4f1027cd29 RSP: 002b:00007f4f10f7b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f4f103abf80 RCX: 00007f4f1027cd29 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000006 RBP: 00007f4f102c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008800000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f4f103abf80 R15: 00007ffcbb212d38 </TASK> INFO: task syz-executor.1:30196 blocked for more than 144 seconds. Not tainted 6.7.0-syzkaller-01367-g35f11a3710cd #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:23216 pid:30196 tgid:30160 ppid:14471 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5399 [inline] __schedule+0x177f/0x4960 kernel/sched/core.c:6726 __schedule_loop kernel/sched/core.c:6801 [inline] schedule+0x149/0x260 kernel/sched/core.c:6816 io_schedule+0x8c/0x100 kernel/sched/core.c:9022 folio_wait_bit_common+0x881/0x12b0 mm/filemap.c:1273 folio_lock include/linux/pagemap.h:1031 [inline] extent_write_cache_pages fs/btrfs/extent_io.c:2082 [inline] extent_writepages+0xb47/0x26a0 fs/btrfs/extent_io.c:2230 do_writepages+0x3a6/0x670 mm/page-writeback.c:2553 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:387 __filemap_fdatawrite_range mm/filemap.c:420 [inline] filemap_fdatawrite_range+0x16e/0x1e0 mm/filemap.c:438 btrfs_start_ordered_extent+0x26e/0x5f0 fs/btrfs/ordered-data.c:797 btrfs_lock_and_flush_ordered_range+0x115/0x220 fs/btrfs/ordered-data.c:1105 btrfs_read_folio+0x10b/0x180 fs/btrfs/extent_io.c:1132 prepare_uptodate_page+0xc8/0x5c0 fs/btrfs/file.c:855 prepare_pages+0x215/0x3b0 fs/btrfs/file.c:943 btrfs_buffered_write+0x7f1/0x1380 fs/btrfs/file.c:1316 btrfs_do_write_iter+0x2bb/0x1190 fs/btrfs/file.c:1687 call_write_iter include/linux/fs.h:2085 [inline] iter_file_splice_write+0xa64/0x1320 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0xf6/0x1e0 fs/splice.c:1164 splice_direct_to_actor+0x54e/0xc80 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x28c/0x3e0 fs/splice.c:1233 do_sendfile+0x56d/0xdb0 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1348 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f4f1027cd29 RSP: 002b:00007f4f10f5a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f4f103ac050 RCX: 00007f4f1027cd29 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f4f102c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f4f103ac050 R15: 00007ffcbb212d38 </TASK> INFO: task syz-executor.1:30197 blocked for more than 145 seconds. Not tainted 6.7.0-syzkaller-01367-g35f11a3710cd #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:26672 pid:30197 tgid:30160 ppid:14471 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5399 [inline] __schedule+0x177f/0x4960 kernel/sched/core.c:6726 __schedule_loop kernel/sched/core.c:6801 [inline] schedule+0x149/0x260 kernel/sched/core.c:6816 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6873 rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306 inode_lock_nested include/linux/fs.h:837 [inline] lock_two_inodes fs/inode.c:1129 [inline] lock_two_nondirectories+0x1ae/0x270 fs/inode.c:1149 btrfs_remap_file_range+0x165/0xeb0 fs/btrfs/reflink.c:896 do_clone_file_range+0x19f/0x6d0 fs/remap_range.c:394 vfs_clone_file_range+0x39e/0x730 fs/remap_range.c:420 ioctl_file_clone fs/ioctl.c:240 [inline] ioctl_file_clone_range fs/ioctl.c:259 [inline] do_vfs_ioctl+0xfa1/0x2b40 fs/ioctl.c:824 __do_sys_ioctl fs/ioctl.c:869 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f4f1027cd29 RSP: 002b:00007f4f10f390c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4f103ac120 RCX: 00007f4f1027cd29 RDX: 0000000020000000 RSI: 000000004020940d RDI: 0000000000000008 RBP: 00007f4f102c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f4f103ac120 R15: 00007ffcbb212d38 </TASK> INFO: task syz-executor.1:30198 blocked for more than 145 seconds. Not tainted 6.7.0-syzkaller-01367-g35f11a3710cd #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:25968 pid:30198 tgid:30160 ppid:14471 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5399 [inline] __schedule+0x177f/0x4960 kernel/sched/core.c:6726 __schedule_loop kernel/sched/core.c:6801 [inline] schedule+0x149/0x260 kernel/sched/core.c:6816 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6873 rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178 __down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306 inode_lock include/linux/fs.h:802 [inline] process_measurement+0x450/0x21c0 security/integrity/ima/ima_main.c:248 ima_file_check+0xf1/0x170 security/integrity/ima/ima_main.c:557 do_open fs/namei.c:3624 [inline] path_openat+0x287a/0x31e0 fs/namei.c:3779 do_filp_open+0x234/0x490 fs/namei.c:3806 do_sys_openat2+0x13e/0x1d0 fs/open.c:1404 do_sys_open fs/open.c:1419 [inline] __do_sys_open fs/open.c:1427 [inline] __se_sys_open fs/open.c:1423 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1423 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f4f1027cd29 RSP: 002b:00007f4f10f180c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f4f103ac1f0 RCX: 00007f4f1027cd29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020007f80 RBP: 00007f4f102c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f4f103ac1f0 R15: 00007ffcbb212d38 </TASK> INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-01367-g35f11a3710cd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xfaf/0xff0 kernel/hung_task.c:379 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 </TASK> Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.7.0-syzkaller-01367-g35f11a3710cd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: events nsim_dev_trap_report_work RIP: 0010:stack_trace_consume_entry+0x12a/0x280 kernel/stacktrace.c:95 Code: 49 89 f5 e8 28 33 6f 00 4d 89 f9 4c 89 ee 4c 89 f2 48 89 33 41 8b 19 41 0f b6 04 14 84 c0 0f 85 30 01 00 00 3b 5d 00 0f 92 c0 <48> 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 44 89 c9 80 e1 07 80 RSP: 0018:ffffc900000d75b0 EFLAGS: 00000283 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff8880152cd940 RDX: dffffc0000000000 RSI: ffffffff86c58ed1 RDI: ffffc900000d76ec RBP: ffffc900000d76e8 R08: 0000000000000007 R09: ffffc900000d76f0 R10: 0000000000000003 R11: ffff8880152cd940 R12: 1ffff9200001aedd R13: 1ffff9200001aedd R14: 0000000000000008 R15: 1ffff9200001aede FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055aac1f181f8 CR3: 000000000d732000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <TASK> arch_stack_walk+0x13a/0x1a0 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x70 mm/kasan/common.c:68 kasan_save_free_info+0x4e/0x60 mm/kasan/generic.c:634 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:241 __kasan_slab_free+0x34/0x60 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x14a/0x380 mm/slub.c:4409 skb_kfree_head net/core/skbuff.c:950 [inline] skb_free_head net/core/skbuff.c:962 [inline] skb_release_data+0x660/0x850 net/core/skbuff.c:992 skb_release_all net/core/skbuff.c:1058 [inline] __kfree_skb net/core/skbuff.c:1072 [inline] consume_skb+0xb3/0x150 net/core/skbuff.c:1288 nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline] nsim_dev_trap_report_work+0x761/0xa90 drivers/net/netdevsim/dev.c:850 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2706 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/01/10 08:11 | upstream | 35f11a3710cd | b438bd66 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in btrfs_do_write_iter |