Date: Wed, 14 Jun 2017 10:36:20 -0400 From: Nikolai Lifanov <lifanov@FreeBSD.org> To: freebsd-hackers@freebsd.org Subject: crash under load in GENERIC Message-ID: <2cbb32a6-4721-544c-ddd1-c9cfa6633a79@FreeBSD.org>
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From: Nikolai Lifanov <lifanov@FreeBSD.org>
To: freebsd-hackers@freebsd.org
Message-ID: <2cbb32a6-4721-544c-ddd1-c9cfa6633a79@FreeBSD.org>
Subject: crash under load in GENERIC
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Hi!
I haven't nailed it to a specific commit, but some time after
head-319667, my package builder box crashes when running Poudriere.
The earliest version that I can confirm crashes is head-319735.
I have full crash summary and core dumps if these are helpful.
__curthread () at ./machine/pcpu.h:232
232 __asm("movq %%gs:%1,%0" : "=3Dr" (td)
(kgdb) #0 __curthread () at ./machine/pcpu.h:232
#1 doadump (textdump=3D1) at /usr/src/sys/kern/kern_shutdown.c:318
#2 0xffffffff80a705f6 in kern_reboot (howto=3D260)
at /usr/src/sys/kern/kern_shutdown.c:386
#3 0xffffffff80a70bf6 in vpanic (fmt=3D<optimized out>,
ap=3D0xfffffe20249e4360)
at /usr/src/sys/kern/kern_shutdown.c:779
#4 0xffffffff80a70c43 in panic (fmt=3D<unavailable>)
at /usr/src/sys/kern/kern_shutdown.c:710
#5 0xffffffff80efe960 in trap_fatal (frame=3D0xfffffe20249e4600, eva=3D1=
024)
at /usr/src/sys/amd64/amd64/trap.c:801
#6 0xffffffff80efe9d2 in trap_pfault (frame=3D0xfffffe20249e4600, usermo=
de=3D0)
at /usr/src/sys/amd64/amd64/trap.c:657
#7 0xffffffff80efe168 in trap (frame=3D0xfffffe20249e4600)
at /usr/src/sys/amd64/amd64/trap.c:421
#8 <signal handler called>
#9 _sx_xlock_hard (sx=3D0xfffff8022c4b4258, x=3D<optimized out>,
tid=3D<optimized out>, opts=3D<optimized out>, file=3D<optimized out>=
,
line=3D<optimized out>) at /usr/src/sys/kern/kern_sx.c:576
#10 0xffffffff80a78cac in _sx_xlock (sx=3D0xfffff8022c4b4258, opts=3D64,
file=3D0xffffffff81142b62 "/usr/src/sys/kern/uipc_sockbuf.c", line=3D=
283)
at /usr/src/sys/kern/kern_sx.c:308
#11 0xffffffff80b04aff in sosend_generic (so=3D0xffffffff81142b62, addr=3D=
0x0,
uio=3D<optimized out>, top=3D0x0, control=3D0x0, flags=3D283, td=3D<o=
ptimized
out>)
at /usr/src/sys/kern/uipc_socket.c:1464
#12 0xffffffff80ae1292 in soo_write (fp=3D<optimized out>,
uio=3D0xfffffe20249e4940, active_cred=3D<optimized out>,
flags=3D<optimized out>, td=3D<optimized out>)
at /usr/src/sys/kern/sys_socket.c:146
#13 0xffffffff80ad8407 in fo_write (fp=3D<optimized out>,
uio=3D0xfffffe20249e4940, active_cred=3D0x0, flags=3D0, td=3D<optimiz=
ed out>)
at /usr/src/sys/sys/file.h:307
#14 dofilewrite (td=3D0xfffff803d3dc4560, fd=3D9, fp=3D0xfffff805a8f320a0=
,
auio=3D0xfffffe20249e4940, offset=3D<optimized out>, flags=3D0)
at /usr/src/sys/kern/sys_generic.c:592
#15 0xffffffff80ad7ff8 in kern_writev (td=3D0xfffff803d3dc4560, fd=3D9,
auio=3D0xfffffe20249e4940) at /usr/src/sys/kern/sys_generic.c:506
#16 0xffffffff80ad7f86 in sys_write (td=3D0xfffff8022c4b4258,
uap=3D<optimized out>) at /usr/src/sys/kern/sys_generic.c:420
#17 0xffffffff80eff399 in syscallenter (td=3D0xfffff803d3dc4560)
at /usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:132
#18 amd64_syscall (td=3D0xfffff803d3dc4560, traced=3D0)
at /usr/src/sys/amd64/amd64/trap.c:903
#19 <signal handler called>
#20 0x0000000800ba2fca in ?? ()
Backtrace stopped: Cannot access memory at address 0x7fffffffe498
(kgdb)
- Nikolai
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