On Monday, 13 September 1999 at 20:00:02 +0000, greg wrote: > Hi, I want to see where some a deadlock is occurring in the kernel. I've got > a dump with a bunch of processes in the inode or namecache state. > > Can anybody give me a hint about how to find a proc's "kernel stack" - so that > I can find out what these kernel was doing for these processes when it locked > up... > > (see "repeated deadlocks in FS ..." on the smp list for more info about the > problem)...
Take a look at the .gdbinits in /usr/src/sys/modules/vinum. There's a little bit of documentation in vinum(4), but not really enough. The functions you might want are (extracted from gdb's "help user"): btp -- Show a backtrace for the process whose pid is specified as a parameter btpa -- Show backtraces for all processes in the system btpp -- Show a backtrace for the process previously selected with 'defproc' btr -- Show a backtrace from the ebp address specified defproc -- Specify a process for btpp and fr commands fr -- Show the frame of the stack of the process previously selected with 'defproc' Greg -- See complete headers for address, home page and phone numbers finger [email protected] for PGP public key To Unsubscribe: send mail to [email protected] with "unsubscribe freebsd-hackers" in the body of the message
