Hi,
I've got a repeatable panic on latest 9.0-STABLE and HEAD with turned on
overcommit (vm.overcommit=1) and RACCT.
kgdb trace on today's HEAD:
#10 0xffffffff80bc3513 in calltrap ()
at /usr/src/sys/amd64/amd64/exception.S:228
#11 0xffffffff808aab71 in racct_set_locked (p=0xfffffe0005d684a0,
resource=0,
amount=2680) at /usr/src/sys/kern/kern_racct.c:372
#12 0xffffffff808ab645 in racct_proc_exit (p=0xfffffe0005d684a0)
at /usr/src/sys/kern/kern_racct.c:615
#13 0xffffffff80880d69 in fork1 (td=0xfffffe0005b2c460, flags=20, pages=4,
procp=0xffffff811a36bb00, procdescp=Variable "procdescp" is not
available.
) at /usr/src/sys/kern/kern_fork.c:943
#14 0xffffffff80882362 in sys_fork (td=0xfffffe0005b2c460, uap=Variable
"uap" is not available.
)
at /usr/src/sys/kern/kern_fork.c:110
#15 0xffffffff80bd7a89 in amd64_syscall (td=0xfffffe0005b2c460, traced=0)
at subr_syscall.c:135
#16 0xffffffff80bc37f7 in Xfast_syscall ()
at /usr/src/sys/amd64/amd64/exception.S:387
#17 0x00000008024729fc in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb)
Unread portion of the kernel message buffer:
Kernel page fault with the following non-sleepable locks held:
exclusive sleep mutex racct lock (racct lock) r = 0 (0xffffffff8128a7c0)
locked @ /usr/src/sys/kern/kern_racct.c:614
exclusive sleep mutex process lock (process lock) r = 0
(0xfffffe0005d68598) locked @ /usr/src/sys/kern/kern_racct.c:603
--
Andrey Zonov
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