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The r254167 moved initialization of the sleepqueues before the witness

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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
This commit is contained in:
Konstantin Belousov 2013-08-10 21:42:14 +00:00
parent 84efbe96f1
commit 2f7c18600c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=254195
1 changed files with 1 additions and 1 deletions
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sys/kern/subr_witness.c
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@ -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