svn commit: r270745 - in head: bin/ps sys/compat/freebsd32 sys/kern sys/sys

Sat Aug 30 00:50:47 UTC 2014

On Fri, Aug 29, 2014 at 05:07:51PM -0700, Adrian Chadd wrote:
> Hi!
> 
> So I'm now getting panics in the process coredump path on -HEAD. The
> proctree lock isn't held.
> 
> Assertion : proctree not locked @ kern_proc.c:795
> 
> path:
> 
> sigexit() -> elf64_coredump() -> elf64_note_procstat_proc() ->
> kern_proc_out() -> fill_kinfo_proc() -> panic.
> 
> What did you peeps do this time? :P
> 
> 
> 
> -a
Here's my similar one...

borg.lerctr.org dumped core - see /var/crash/vmcore.0

Fri Aug 29 18:34:26 CDT 2014

FreeBSD borg.lerctr.org 11.0-CURRENT FreeBSD 11.0-CURRENT #1 r270811M: Fri Aug 29 16:33:32 CDT 2014     root at borg.lerctr.org:/usr/obj/usr/src/sys/VT-LER  amd64

panic: Lock proctree not locked @ /usr/src/sys/kern/kern_proc.c:795

GNU gdb 6.1.1 [FreeBSD]
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welcome to change it and/or distribute copies of it under certain conditions.
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This GDB was configured as "amd64-marcel-freebsd"...

Unread portion of the kernel message buffer:
panic: Lock proctree not locked @ /usr/src/sys/kern/kern_proc.c:795

cpuid = 0
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe100c63fd50
kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe100c63fe00
vpanic() at vpanic+0x189/frame 0xfffffe100c63fe80
panic() at panic+0x43/frame 0xfffffe100c63fee0
_sx_assert() at _sx_assert+0x137/frame 0xfffffe100c63fef0
fill_kinfo_proc() at fill_kinfo_proc+0x3c/frame 0xfffffe100c63ff30
kern_proc_out() at kern_proc_out+0x67/frame 0xfffffe100c6406c0
elf32_note_procstat_proc() at elf32_note_procstat_proc+0x79/frame 0xfffffe100c640700
elf32_coredump() at elf32_coredump+0x9e2/frame 0xfffffe100c640810
sigexit() at sigexit+0xadb/frame 0xfffffe100c640ac0
postsig() at postsig+0x3c8/frame 0xfffffe100c640bb0
ast() at ast+0x327/frame 0xfffffe100c640bf0
doreti_ast() at doreti_ast+0x1f/frame 0xffffccd0
Uptime: 2m50s
Dumping 2545 out of 64456 MB: (CTRL-C to abort) ..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%

Reading symbols from /boot/kernel/linux.ko.symbols...done.
Loaded symbols for /boot/kernel/linux.ko.symbols
Reading symbols from /boot/kernel/if_lagg.ko.symbols...done.
Loaded symbols for /boot/kernel/if_lagg.ko.symbols
Reading symbols from /boot/kernel/snd_envy24ht.ko.symbols...done.
Loaded symbols for /boot/kernel/snd_envy24ht.ko.symbols
Reading symbols from /boot/kernel/snd_spicds.ko.symbols...done.
Loaded symbols for /boot/kernel/snd_spicds.ko.symbols
Reading symbols from /boot/kernel/coretemp.ko.symbols...done.
Loaded symbols for /boot/kernel/coretemp.ko.symbols
Reading symbols from /boot/kernel/ichsmb.ko.symbols...done.
Loaded symbols for /boot/kernel/ichsmb.ko.symbols
Reading symbols from /boot/kernel/smbus.ko.symbols...done.
Loaded symbols for /boot/kernel/smbus.ko.symbols
Reading symbols from /boot/kernel/ichwd.ko.symbols...done.
Loaded symbols for /boot/kernel/ichwd.ko.symbols
Reading symbols from /boot/kernel/cpuctl.ko.symbols...done.
Loaded symbols for /boot/kernel/cpuctl.ko.symbols
Reading symbols from /boot/kernel/crypto.ko.symbols...done.
Loaded symbols for /boot/kernel/crypto.ko.symbols
Reading symbols from /boot/kernel/cryptodev.ko.symbols...done.
Loaded symbols for /boot/kernel/cryptodev.ko.symbols
Reading symbols from /boot/kernel/dtraceall.ko.symbols...done.
Loaded symbols for /boot/kernel/dtraceall.ko.symbols
Reading symbols from /boot/kernel/profile.ko.symbols...done.
Loaded symbols for /boot/kernel/profile.ko.symbols
Reading symbols from /boot/kernel/cyclic.ko.symbols...done.
Loaded symbols for /boot/kernel/cyclic.ko.symbols
Reading symbols from /boot/kernel/dtrace.ko.symbols...done.
Loaded symbols for /boot/kernel/dtrace.ko.symbols
Reading symbols from /boot/kernel/systrace_freebsd32.ko.symbols...done.
Loaded symbols for /boot/kernel/systrace_freebsd32.ko.symbols
Reading symbols from /boot/kernel/systrace.ko.symbols...done.
Loaded symbols for /boot/kernel/systrace.ko.symbols
Reading symbols from /boot/kernel/sdt.ko.symbols...done.
Loaded symbols for /boot/kernel/sdt.ko.symbols
Reading symbols from /boot/kernel/lockstat.ko.symbols...done.
Loaded symbols for /boot/kernel/lockstat.ko.symbols
Reading symbols from /boot/kernel/fasttrap.ko.symbols...done.
Loaded symbols for /boot/kernel/fasttrap.ko.symbols
Reading symbols from /boot/kernel/fbt.ko.symbols...done.
Loaded symbols for /boot/kernel/fbt.ko.symbols
Reading symbols from /boot/kernel/dtnfscl.ko.symbols...done.
Loaded symbols for /boot/kernel/dtnfscl.ko.symbols
Reading symbols from /boot/kernel/dtmalloc.ko.symbols...done.
Loaded symbols for /boot/kernel/dtmalloc.ko.symbols
Reading symbols from /boot/modules/vboxdrv.ko...done.
Loaded symbols for /boot/modules/vboxdrv.ko
Reading symbols from /boot/modules/nvidia.ko...done.
Loaded symbols for /boot/modules/nvidia.ko
Reading symbols from /boot/kernel/ipmi.ko.symbols...done.
Loaded symbols for /boot/kernel/ipmi.ko.symbols
Reading symbols from /boot/kernel/ipmi_linux.ko.symbols...done.
Loaded symbols for /boot/kernel/ipmi_linux.ko.symbols
Reading symbols from /boot/kernel/radeonkms.ko.symbols...done.
Loaded symbols for /boot/kernel/radeonkms.ko.symbols
Reading symbols from /boot/kernel/iicbb.ko.symbols...done.
Loaded symbols for /boot/kernel/iicbb.ko.symbols
Reading symbols from /boot/kernel/iicbus.ko.symbols...done.
Loaded symbols for /boot/kernel/iicbus.ko.symbols
Reading symbols from /boot/kernel/iic.ko.symbols...done.
Loaded symbols for /boot/kernel/iic.ko.symbols
Reading symbols from /boot/kernel/drm2.ko.symbols...done.
Loaded symbols for /boot/kernel/drm2.ko.symbols
Reading symbols from /boot/kernel/radeonkmsfw_R100_cp.ko.symbols...done.
Loaded symbols for /boot/kernel/radeonkmsfw_R100_cp.ko.symbols
Reading symbols from /boot/kernel/fdescfs.ko.symbols...done.
Loaded symbols for /boot/kernel/fdescfs.ko.symbols
Reading symbols from /boot/kernel/uhid.ko.symbols...done.
Loaded symbols for /boot/kernel/uhid.ko.symbols
Reading symbols from /boot/modules/vboxnetflt.ko...done.
Loaded symbols for /boot/modules/vboxnetflt.ko
Reading symbols from /boot/kernel/netgraph.ko.symbols...done.
Loaded symbols for /boot/kernel/netgraph.ko.symbols
Reading symbols from /boot/kernel/ng_ether.ko.symbols...done.
Loaded symbols for /boot/kernel/ng_ether.ko.symbols
Reading symbols from /boot/modules/vboxnetadp.ko...done.
Loaded symbols for /boot/modules/vboxnetadp.ko
#0  doadump (textdump=1) at pcpu.h:219
219	pcpu.h: No such file or directory.
	in pcpu.h
(kgdb) #0  doadump (textdump=1) at pcpu.h:219
#1  0xffffffff80a15227 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:447
#2  0xffffffff80a157c8 in vpanic (fmt=<value optimized out>, 
    ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:746
#3  0xffffffff80a15813 in panic (fmt=0x0)
    at /usr/src/sys/kern/kern_shutdown.c:675
#4  0xffffffff80a1ce47 in _sx_assert (sx=0x0, what=<value optimized out>, 
    file=0x0, line=0) at /usr/src/sys/kern/kern_sx.c:1086
#5  0xffffffff80a0611c in fill_kinfo_proc (p=0xfffff80257916000, 
    kp=0xfffffe100c640250) at /usr/src/sys/kern/kern_proc.c:795
#6  0xffffffff80a06cc7 in kern_proc_out (p=0xfffff80257916000, 
    sb=0xfffff800241c8400, flags=2) at /usr/src/sys/kern/kern_proc.c:1205
#7  0xffffffff809c0709 in elf32_note_procstat_proc (
    arg=<value optimized out>, sb=<value optimized out>, 
    sizep=0xfffff80024267dd8) at imgact_elf.c:1787
#8  0xffffffff809bea02 in elf32_coredump (td=<value optimized out>, 
    vp=0xfffff802708f9000, limit=<value optimized out>, flags=0)
    at imgact_elf.c:1618
#9  0xffffffff80a18c4b in sigexit (td=0xfffff80270e5d000, sig=11)
    at /usr/src/sys/kern/kern_sig.c:3297
#10 0xffffffff80a19318 in postsig (sig=<value optimized out>)
    at /usr/src/sys/kern/kern_sig.c:2837
#11 0xffffffff80a60727 in ast (framep=<value optimized out>)
    at /usr/src/sys/kern/subr_trap.c:275
#12 0xffffffff80e08e09 in doreti_ast ()
    at /usr/src/sys/amd64/amd64/exception.S:676
#13 0x000000000814f470 in ?? ()
#14 0x000000000814f430 in ?? ()
#15 0x0000000000000000 in ?? ()
Current language:  auto; currently minimal
(kgdb) 

-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: ler at lerctr.org
US Mail: 108 Turvey Cove, Hutto, TX 78634-5688