libev: segmentation fault in ev_feed_event().

[Mushtaq Khan]

Hi,

I see a segmentation fault ev_feed_event() called from timer_reify(). I
used to see this issue intermittently now i see this quite consistently in
my work environment.
Here is the backtrace of segmentation fault,
(gdb) bt
#0  ev_feed_event (loop=loop at entry=0x236e8b80, w=0x235387a0,
revents=revents at entry=256) at ev.c:2011
#1  0x0000ffff956f0420 in feed_reverse_done (revents=<optimized out>,
loop=<optimized out>) at ev.c:2031
#2  timers_reify (loop=0x236e8b80) at ev.c:3388
#3  ev_run (loop=0x236e8b80, flags=flags at entry=0) at ev.c:3710
#4  0x0000ffff986ca2ac in sdk::event_thread::event_thread::run_
(this=this at entry=0x236e7db0) at sdk/lib/event_thread/event_thread.cc:476
#5  0x0000ffff986ca3bc in
sdk::event_thread::event_thread::event_thread_entry_ (ctx=0x236e7db0) at
sdk/lib/event_thread/event_thread.cc:262
#6  0x0000ffff95760030 in start_thread (arg=0xffff95784000
<__pthread_keys+15744>) at pthread_create.c:331
#7  0x0000ffff906514d0 in thread_start () at
../sysdeps/unix/sysv/linux/aarch64/clone.S:89

Regards,
Mushtaq Khan
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