So while the unstable, reverse-engineered ATI drivers were locked up (which is
usual, it happens ~5 times a day on average), I pressed the ATX power button to
initiate a clean shutdown (statistically, this usually succeeds). During the
shutdown procedure, a panic occurred. (As a result, the filesystem wasn't
cleanly unmounted.)
I was doing a ``git pull --rebase'' (which turned out to have succeeded) when
the driver lockup occurred.
The crashinfo output is attached. Note: the kernel used during the panic has no
debugging symbols; a version compiled with debugging symbols was used for
crashinfo.
dumped core - see /var/crash/vmcore.0
Sat May 19 18:36:13 CEST 2012
FreeBSD 10.0-CURRENT FreeBSD 10.0-CURRENT #1 r235500M: Sat May 19 17:53:32
CEST 2012 root@:/usr/obj/usr/src/sys/HQ i386
panic: page fault
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This GDB was configured as i386-marcel-freebsd...
Cannot access memory at address 0x0
(kgdb) #0 0x in ?? ()
(kgdb)
ps -axl
UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND
vmstat -s
0 cpu context switches
3230491304 device interrupts
0 software interrupts
3230491296 traps
0 system calls
3230491472 kernel threads created
0 fork() calls
3230491464 vfork() calls
0 rfork() calls
0 swap pager pageins
0 swap pager pages paged in
3230491336 swap pager pageouts
3230491344 swap pager pages paged out
0 vnode pager pageins
0 vnode pager pages paged in
3230491352 vnode pager pageouts
3230491360 vnode pager pages paged out
0 page daemon wakeups
3230491376 pages examined by the page daemon
3230491368 pages reactivated
0 copy-on-write faults
3230491320 copy-on-write optimized faults
0 zero fill pages zeroed
3230491328 zero fill pages prezeroed
0 intransit blocking page faults
3230491312 total VM faults taken
3230491488 pages affected by kernel thread creation
0 pages affected by fork()
3230491480 pages affected by vfork()
0 pages affected by rfork()
0 pages cached
3230491392 pages freed
3230491384 pages freed by daemon
0 pages freed by exiting processes
3230491424 pages active
3230491432 pages inactive
0 pages in VM cache
0 pages wired down
3230491416 pages free
0 bytes per page
-2108415131 total name lookups
cache hits (0% pos + 0% neg) system 0% per-directory
deletions 0%, falsehits 50%, toolong -1%
vmstat -m
vmstat: memstat_kvm_malloc: invalid address (0x7cd6d6c6)
Type InUse MemUse HighUse Requests Size(s)
vmstat -z
ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP
vmstat -i
vmstat: malloc(): Cannot allocate memory
pstat -T
19/ 0 files
0M/0M swap space
pstat -s
Device 1K-blocks UsedAvail Capacity
iostat
iostat: devstat_checkversion: userland devstat version 6 is not the same as the
kernel
devstat_checkversion: devstat version -1065155924
devstat_checkversion: libdevstat newer than kernel
ipcs -a
ipcs: shmsegs: invalid address (0x0)
Message Queues:
T ID KEY MODEOWNERGROUPCREATOR CGROUP
CBYTES QNUM QBYTESLSPID
LRPID STIMERTIMECTIME
ipcs -T
msginfo:
msgmax:0(max characters in a message)
msgmni:0(# of message queues)
msgmnb: 1312130(max characters in a message queue)
msgtql: -65536(max # of messages in system)
msgssz: 60(size of a message segment)
msgseg:0(# of message segments in system)
shminfo:
shmmax: 25165824(max shared memory segment size)
shmmin:268435455(min shared memory segment size)
shmmni: 3227543568(max number of shared memory identifiers)
shmseg: 3230161136(max shared memory
