Date: Sat, 10 Aug 2013 21:42:14 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r254195 - head/sys/kern Message-ID: <201308102142.r7ALgEGd094684@svn.freebsd.org>
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Author: kib Date: Sat Aug 10 21:42:14 2013 New Revision: 254195 URL: http://svnweb.freebsd.org/changeset/base/254195 Log: The r254167 moved initialization of the sleepqueues before the witness is operational. init_sleepqueues() initializes 256 mutexes, which, due to witness still being cold, started to overflow the pending_locks array. As stated in the reported panic message, increase WITNESS_PENDLIST from 768 to 1024, which provides space for additional 256 locks. Reported by: many Tested by: rakuco, bdrewery Modified: head/sys/kern/subr_witness.c Modified: head/sys/kern/subr_witness.c ============================================================================== --- head/sys/kern/subr_witness.c Sat Aug 10 21:31:35 2013 (r254194) +++ head/sys/kern/subr_witness.c Sat Aug 10 21:42:14 2013 (r254195) @@ -135,7 +135,7 @@ __FBSDID("$FreeBSD$"); #define WITNESS_COUNT 1024 #define WITNESS_CHILDCOUNT (WITNESS_COUNT * 4) #define WITNESS_HASH_SIZE 251 /* Prime, gives load factor < 2 */ -#define WITNESS_PENDLIST 768 +#define WITNESS_PENDLIST 1024 /* Allocate 256 KB of stack data space */ #define WITNESS_LO_DATA_COUNT 2048
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