On Thursday 08 July 2004 10:31 pm, Robert Watson wrote: > Was doing some stress testing on a box with some if_xl locking tweaks from > Bruce Simpson, and ran into this. Configuration is a GENERIC kernel > running on a dual-Xeon 2.4GHz (each one with two logical processors, so > 4 HTT processors). The workload was as follows: > > - Apache 1.3 running on the box, 20 recursive wget clients from an > adjacent machine. > > - Simultaneous "supersmack" select key mysql test running with 11 threads > and 10,000 transactions, running with libkse. > > I attempted to log in on the serial console and got this panic: > > login: root > Password:panic: Assertion td->td_turnstile != NULL failed at > ../../../kern/subr_turnstile.c:478 This means your thread has no turnstile to give to the lock it is blocking on. Are you using TURNSTILE_PROFILING on this box? -- John Baldwin <jhb_at_FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.orgReceived on Fri Jul 09 2004 - 15:51:35 UTC
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