Date: Fri, 3 Mar 2006 11:14:47 -0500 From: John Baldwin <jhb@freebsd.org> To: Kris Kennaway <kris@obsecurity.org> Cc: current@freebsd.org Subject: Re: panic: blockable sleep lock (sleep mutex) Giant @ kern/kern_intr.c:661 Message-ID: <200603031114.48956.jhb@freebsd.org> In-Reply-To: <20060302235957.GA75453@xor.obsecurity.org> References: <20060302235957.GA75453@xor.obsecurity.org>
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On Thursday 02 March 2006 18:59, Kris Kennaway wrote: > Updated to -current, panicked at boot: > > Timecounters tick evpanic: blockable sleep lock (sleep mutex) Giant @ kern/kern_intr.c:661 > cpuid = 0 > KDB: enter: panic > [thread pid 30 tid 100035 ] > Stopped at kdb_enter+0x30: leave > db> wh > Tracing pid 30 tid 100035 td 0xcc5b7bd0 > kdb_enter(c072c0f6,0,c07303fc,f5893c50,cc5b7bd0) at kdb_enter+0x30 > panic(c07303fc,c074362d,c073e0e1,c07294ca,295) at panic+0x13f > witness_checkorder(c07939e8,9,c07294ca,295,c07999f8) at witness_checkorder+0xd6 > _mtx_lock_flags(c07939e8,0,c07294c1,295,2) at _mtx_lock_flags+0x94 > ithread_execute_handlers(cc5c1000,cc5f8c80,c052b648,c07939d0,cc5b7bd0) at ithread_execute_handlers+0x10c > ithread_loop(cc5d3440,f5893d38,c07292b7,31a,cc5d3440) at ithread_loop+0x78 > fork_exit(c051d959,cc5d3440,f5893d38) at fork_exit+0xc5 > fork_trampoline() at fork_trampoline+0x8 > --- trap 0x1, eip = 0, esp = 0xf5893d6c, ebp = 0 --- Something has leaked a critical section. Do you have witness_skipspin enabled? Can you try turning it off? It's probably a missing unlock of a spin mutex somewhere. > db> ps > pid proc uid ppid pgrp flag stat wmesg wchan cmd > 30 cc5c1000 0 0 0 0000204 [CPU 0] swi0: sio > 29 cc5c1234 0 0 0 0000204 [IWAIT] irq1: atkbd0 > 28 cc5c1468 0 0 0 0000204 [RUNQ] fdc0 > 27 cc4cc69c 0 0 0 0000204 [IWAIT] irq15: ata1 > 26 cc4cc8d0 0 0 0 0000204 [IWAIT] irq14: ata0 > 25 cc4ccb04 0 0 0 0000204 [IWAIT] irq18: fxp1 > 24 cc4ccd38 0 0 0 0000204 [IWAIT] irq17: fxp0 > 23 cc531000 0 0 0 0000204 [RUNQ] aic_recovery1 > 22 cc531234 0 0 0 0000204 [IWAIT] irq77: ahc1 > 9 cc531468 0 0 0 0000204 [RUNQ] aic_recovery1 > 8 cc53169c 0 0 0 0000204 [RUNQ] aic_recovery0 > 21 cc5318d0 0 0 0 0000204 [IWAIT] irq76: ahc0 > 7 cc531b04 0 0 0 0000204 [RUNQ] aic_recovery0 > 20 cc47e234 0 0 0 0000204 [IWAIT] swi2: cambio > 19 cc47e468 0 0 0 0000204 [IWAIT] swi5: + > 6 cc47e69c 0 0 0 0000204 [RUNQ] thread taskq > 18 cc47e8d0 0 0 0 0000204 [IWAIT] swi6: Giant taskq > 17 cc47eb04 0 0 0 0000204 [IWAIT] swi6: task queue > 5 cc47ed38 0 0 0 0000204 [RUNQ] kqueue taskq > 16 cc4cc000 0 0 0 0000204 [RUNQ] yarrow > 4 cc4cc234 0 0 0 0000204 [RUNQ] g_down > 3 cc4cc468 0 0 0 0000204 [RUNQ] g_up > 2 cc479000 0 0 0 0000204 [RUNQ] g_event > 15 cc479234 0 0 0 0000204 [IWAIT] swi1: net > 14 cc479468 0 0 0 0000204 [IWAIT] swi3: vm > 13 cc47969c 0 0 0 000020c [RUNQ] swi4: clock sio > 12 cc4798d0 0 0 0 000020c [Can run] idle: cpu0 > 11 cc479b04 0 0 0 000020c [Can run] idle: cpu1 > 1 cc479d38 0 0 0 0000200 [INACTIVE] swapper > 10 cc47e000 0 0 0 0000204 [RUNQ] audit_worker > 0 c0792020 0 0 0 0000200 [RUNQ] swapper > db> show alllocks > Process 0 () thread 0xc0792258 (0) > exclusive sleep mutex Giant r = 0 (0xc07939e8) locked @ vm/vm_contig.c:583 > > Kris -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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