INFO: task syz-executor.5:3445 blocked for more than 143 seconds.
Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:25568 pid:3445 ppid:3618 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
wb_wait_for_completion+0x17e/0x240 fs/fs-writeback.c:191
__writeback_inodes_sb_nr+0x1d7/0x280 fs/fs-writeback.c:2620
try_to_writeback_inodes_sb+0x94/0xc0 fs/fs-writeback.c:2668
ext4_nonda_switch+0x1aa/0x1f0 fs/ext4/inode.c:2950
ext4_da_write_begin+0x16c/0xb50 fs/ext4/inode.c:2977
generic_perform_write+0x252/0x570 mm/filemap.c:3753
ext4_buffered_write_iter+0x15b/0x460 fs/ext4/file.c:285
ext4_file_write_iter+0x8b8/0x16e0 fs/ext4/file.c:700
__kernel_write_iter+0x25e/0x730 fs/read_write.c:517
dump_emit_page fs/coredump.c:857 [inline]
dump_user_range+0x230/0x700 fs/coredump.c:908
elf_core_dump+0x26de/0x3510 fs/binfmt_elf.c:2311
do_coredump+0x26c5/0x3bc0 fs/coredump.c:755
get_signal+0x1be1/0x2430 kernel/signal.c:2844
arch_do_signal_or_restart+0x82/0x2300 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203
irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:309
asm_exc_general_protection+0x22/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7fa52ec8b5b1
RSP: 002b:00000000200001b0 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fa52edabf80 RCX: 00007fa52ec8b5a9
RDX: 0000000020000200 RSI: 00000000200001b0 RDI: 0000000000000000
RBP: 00007fa52ece67b0 R08: 0000000020000280 R09: 0000000020000280
R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd9c15acef R14: 00007fa52faa0300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc71/0xfc0 kernel/hung_task.c:377
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7999 Comm: kworker/u4:7 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Workqueue: phy14 ieee80211_iface_work
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:207
Code: 48 89 ef 5d e9 e1 13 34 00 5d be 03 00 00 00 e9 d6 8e 87 02 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 b9 d2 85 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90014d579d8 EFLAGS: 00000297
RAX: 0000000000000000 RBX: 0000000000000078 RCX: ffffffff88dcb9a4
RDX: ffff888057a957c0 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 000000000000000c R08: 0000000000000006 R09: 0000000000000008
R10: 000000000000000c R11: 000000000008c07e R12: 0000000000000008
R13: 0000000000000008 R14: 00000000000000b4 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89b734ea70 CR3: 0000000060f2e000 CR4: 0000000000350ef0
Call Trace:
ieee80211_sta_get_rates+0x482/0x960 net/mac80211/util.c:2199
ieee80211_update_sta_info net/mac80211/ibss.c:1003 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1118 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x11c4/0x3190 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1630 [inline]
ieee80211_iface_work+0xa47/0xd30 net/mac80211/iface.c:1684
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306