On Jun 23, 2013, at 9:16 AM, Konstantin Belousov wrote: > On Sun, Jun 23, 2013 at 06:43:46PM +0400, Ruslan Bukin wrote: >> On Sun, Jun 23, 2013 at 05:32:48PM +0300, Konstantin Belousov wrote: >>> >>> This is useless without a backtrace. >> >> Trying to mount root from ufs:/dev/da0 []... >> WARNING: / was not properly dismounted >> warning: no time-of-day clock registered, system time will not be set accurately >> panic: __rw_wlock_hard: recursing but non-recursive rw pmap pv global _at_ /usr/home/br/dev/head/sys/arm/arm/pmap-v6.c:1289 >> >> KDB: enter: panic >> [ thread pid 1 tid 100001 ] >> Stopped at kdb_enter+0x48: ldrb r15, [r15, r15, ror r15]! >> db> bt >> Tracing pid 1 tid 100001 td 0xc547f620 >> _end() at 0xde9d0530 >> scp=0xde9d0530 rlv=0xc1211458 (db_trace_thread+0x34) >> rsp=0xde9d0514 rfp=0xc12d1b60 >> Bad frame pointer: 0xc12d1b60 >> db> > This is completely broken. It seems that witness triggered the panic, > and ddb is unable to obtain a backtrace from the normal panic(9) call. Kernel backtraces are currently broken on ARM EABI kernels. Tim
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