panic: malloc(M_WAITOK) with sleeping prohibited with main-n245383-15565e0a2177

[Mark Johnston]

On Thu, Mar 11, 2021 at 06:32:13PM +0100, Peter Holm wrote:
> I just got this panic:
> 
> panic: malloc(M_WAITOK) with sleeping prohibited
> cpuid = 0
> time = 1615472733
> KDB: stack backtrace:
> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00e49748b0
> vpanic() at vpanic+0x181/frame 0xfffffe00e4974900
> panic() at panic+0x43/frame 0xfffffe00e4974960
> malloc_dbg() at malloc_dbg+0xd4/frame 0xfffffe00e4974980
> malloc() at malloc+0x34/frame 0xfffffe00e49749e0
> g_mirror_event_send() at g_mirror_event_send+0x30/frame 0xfffffe00e4974a30
> softclock_call_cc() at softclock_call_cc+0x15d/frame 0xfffffe00e4974b00
> softclock() at softclock+0x66/frame 0xfffffe00e4974b20
> ithread_loop() at ithread_loop+0x279/frame 0xfffffe00e4974bb0
> fork_exit() at fork_exit+0x80/frame 0xfffffe00e4974bf0
> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00e4974bf0
> 
> https://people.freebsd.org/~pho/stress/log/log0078.txt

Hi Peter,

Could you try the patch here? https://reviews.freebsd.org/D29223