Tumbleweed Build 20211110 kernel 5.14.14-2-default (2b5383f) (but it might have
been failing in 5.13 and older kernels)
https://openqa.opensuse.org/tests/2029105/file/serial0.txt
Prints really long stack trace, which begins:
[ 5211.445898][ C0] sysrq: Show State
[ 5211.446508][ C0] task:systemd state:S stack: 0 pid: 1 ppid:
0 flags:0x00000000
[ 5211.447686][ C0] Call Trace:
[ 5211.448216][ C0] __schedule+0x325/0x1530
[ 5211.448874][ C0] ? kmem_cache_alloc+0x151/0x480
[ 5211.449593][ C0] schedule+0x44/0xa0
[ 5211.450202][ C0] schedule_hrtimeout_range_clock+0x10b/0x120
[ 5211.451077][ C0] ? kfree+0xba/0x3c0
[ 5211.451934][ C0] ? sock_poll+0x4f/0xe0
[ 5211.452914][ C0] ? ep_done_scan+0xa7/0xf0
[ 5211.453723][ C0] do_epoll_wait+0x542/0x700
[ 5211.454594][ C0] ? wait_woken+0x70/0x70
[ 5211.455511][ C0] __x64_sys_epoll_wait+0x60/0x100
[ 5211.456475][ C0] ? syscall_exit_to_user_mode+0x18/0x40
[ 5211.457467][ C0] do_syscall_64+0x5c/0x80
[ 5211.458342][ C0] ? syscall_exit_to_user_mode+0x18/0x40
[ 5211.459302][ C0] ? do_syscall_64+0x69/0x80
[ 5211.460048][ C0] ? ksys_read+0x5f/0xe0
[ 5211.460755][ C0] ? syscall_exit_to_user_mode+0x18/0x40
[ 5211.461615][ C0] ? do_syscall_64+0x69/0x80
[ 5211.462361][ C0] ? syscall_exit_to_user_mode+0x18/0x40
[ 5211.463276][ C0] ? do_syscall_64+0x69/0x80
[ 5211.464043][ C0] ? exc_page_fault+0x68/0x130
[ 5211.464821][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 5211.465736][ C0] RIP: 0033:0x7fe070700c1e
[ 5211.466480][ C0] RSP: 002b:00007ffc484b5ed0 EFLAGS: 00000293 ORIG_RAX:
00000000000000e8
[ 5211.467713][ C0] RAX: ffffffffffffffda RBX: 0000562627698e40 RCX:
00007fe070700c1e
[ 5211.468853][ C0] RDX: 00000000000000ae RSI: 000056262788a3e0 RDI:
0000000000000004
[ 5211.469999][ C0] RBP: 0000000000000001 R08: 0000000000000000 R09:
0000000000000006
[ 5211.471147][ C0] R10: 00000000ffffffff R11: 0000000000000293 R12:
0000000000000352
[ 5211.472315][ C0] R13: 00000000000000ae R14: 0000000000000055 R15:
0000562627698fd0
[ 5211.473472][ C0] task:kthreadd state:S stack: 0 pid: 2 ppid:
0 flags:0x00004000
[ 5211.474773][ C0] Call Trace:
[ 5211.475449][ C0] __schedule+0x325/0x1530
[ 5211.476249][ C0] ? kernel_thread+0x55/0x70
[ 5211.477068][ C0] schedule+0x44/0xa0
[ 5211.477836][ C0] kthreadd+0x2c0/0x2e0
[ 5211.478647][ C0] ? kthread_is_per_cpu+0x30/0x30
[ 5211.479670][ C0] ret_from_fork+0x22/0x30
[ 5211.480495][ C0] task:rcu_gp state:I stack: 0 pid: 3 ppid:
2 flags:0x00004000