Warning: Permanently added '10.128.0.15' (ED25519) to the list of known hosts. executing program [ 119.222993][ T6412] loop0: detected capacity change from 0 to 16 [ 119.228344][ T6412] erofs: (device loop0): mounted with root inode @ nid 36. [ 119.238076][ T6412] syz-executor173: attempt to access beyond end of device [ 119.238076][ T6412] loop0: rw=0, sector=8, nr_sectors = 32 limit=16 [ 284.638850][ T31] INFO: task syz-executor173:6412 blocked for more than 143 seconds. [ 284.641250][ T31] Not tainted 6.11.0-rc4-syzkaller-g048499f92ed7 #0 [ 284.643159][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.645507][ T31] task:syz-executor173 state:D stack:0 pid:6412 tgid:6412 ppid:6411 flags:0x00000005 [ 284.648215][ T31] Call trace: [ 284.649341][ T31] __switch_to+0x314/0x560 [ 284.650618][ T31] __schedule+0x13d4/0x2418 [ 284.651781][ T31] schedule+0xbc/0x238 [ 284.652885][ T31] io_schedule+0x8c/0x124 [ 284.654047][ T31] folio_wait_bit_common+0x65c/0xb90 [ 284.655593][ T31] __folio_lock+0x2c/0x3c [ 284.656708][ T31] z_erofs_runqueue+0x838/0x17ec [ 284.657912][ T31] z_erofs_readahead+0x858/0xc18 [ 284.659232][ T31] read_pages+0x160/0x694 [ 284.660304][ T31] page_cache_ra_unbounded+0x484/0x584 [ 284.661635][ T31] force_page_cache_ra+0x22c/0x290 [ 284.662932][ T31] generic_fadvise+0x3e8/0x6a0 [ 284.664079][ T31] __arm64_sys_fadvise64_64+0x12c/0x174 [ 284.665520][ T31] invoke_syscall+0x98/0x2b8 [ 284.666774][ T31] el0_svc_common+0x130/0x23c [ 284.668002][ T31] do_el0_svc+0x48/0x58 [ 284.669124][ T31] el0_svc+0x54/0x168 [ 284.670092][ T31] el0t_64_sync_handler+0x84/0xfc [ 284.671306][ T31] el0t_64_sync+0x190/0x194 [ 284.672430][ T31] [ 284.672430][ T31] Showing all locks held in the system: [ 284.674297][ T31] 1 lock held by khungtaskd/31: [ 284.675463][ T31] #0: ffff80008f6edb60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 284.677817][ T31] 2 locks held by getty/6155: [ 284.679094][ T31] #0: ffff0000d23b60a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 284.681523][ T31] #1: ffff80009836e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 [ 284.684026][ T31] 1 lock held by syz-executor173/6412: [ 284.685361][ T31] #0: ffff0000deee0330 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x584 [ 284.688079][ T31] [ 284.688738][ T31] ============================================= [ 284.688738][ T31] [ 284.690798][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 284.692471][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.11.0-rc4-syzkaller-g048499f92ed7 #0 [ 284.694841][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 284.697277][ T31] Call trace: [ 284.698079][ T31] dump_backtrace+0x1b8/0x1e4 [ 284.699247][ T31] show_stack+0x2c/0x3c [ 284.700268][ T31] dump_stack_lvl+0xe4/0x150 [ 284.701422][ T31] dump_stack+0x1c/0x28 [ 284.702497][ T31] panic+0x300/0x884 [ 284.703517][ T31] hung_task_panic+0x0/0x2c [ 284.704705][ T31] kthread+0x288/0x310 [ 284.705730][ T31] ret_from_fork+0x10/0x20 [ 284.706831][ T31] SMP: stopping secondary CPUs [ 284.708080][ T31] Kernel Offset: disabled [ 284.709154][ T31] CPU features: 0x08,00000103,80100128,42017203 [ 284.710758][ T31] Memory Limit: none [ 285.062651][ T31] Rebooting in 86400 seconds..