Re: LOCK_PROFILING
Pramod Srinivasan <[email protected]> Fri, 21 Aug 2009 02:10:02 -0700
| Newsgroups | gmane.os.freebsd.devel.smp |
|---|---|
| Message-ID | <C6B3B27A.15FB1%[email protected]> |
Hi John, On 8/19/09 4:57 AM, "John Baldwin" <[email protected]> wrote: >=20 > It sounds like a tripe fault. I suspect you are recursing on your stack > somehow leading to a double fault that faults again trying to get a lock = to > output to the console perhaps (that would explain the lack of double faul= t > messages if that were the case). Perhaps a lock used in the profiling is > incorrectly being profiled? Yes, this is right!! The clock_lock was not initialized with MTX_NOPROFILE, and we ended up profiling the clock_lock recursively until we overflowed the stack. Thanks for pointing out. Thanks, Pramod _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-smp To unsubscribe, send any mail to "[email protected]"