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| author | jhibbits <jhibbits@FreeBSD.org> | 2013-11-13 01:37:52 +0000 |
|---|---|---|
| committer | jhibbits <jhibbits@FreeBSD.org> | 2013-11-13 01:37:52 +0000 |
| commit | 7e2131407e3790e5903874cc906caec631f81efd (patch) | |
| tree | 928be69d324aba6fd9371d456845f17ddbcb3b2e | |
| parent | 1708e7ba2f73abb09e138ea8a39d84e2a338381f (diff) | |
| download | FreeBSD-src-7e2131407e3790e5903874cc906caec631f81efd.zip FreeBSD-src-7e2131407e3790e5903874cc906caec631f81efd.tar.gz | |
Increase the stack size for ppc64 from 4 pages to 8.
I found a stack overflow when a coredump was taken onto a ZFS volume with
heavy network activity. 2 DSI traps, plus one DECR trap, along with several
function calls in the stack, overflowed the 4 pages. 8 page stack fixes this.
Discussed with: nwhitehorn
MFC after: 1 week
| -rw-r--r-- | sys/powerpc/include/param.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/powerpc/include/param.h b/sys/powerpc/include/param.h index 7e7c8f1..e4e4b25 100644 --- a/sys/powerpc/include/param.h +++ b/sys/powerpc/include/param.h @@ -104,7 +104,11 @@ #define MAXPAGESIZES 1 /* maximum number of supported page sizes */ #ifndef KSTACK_PAGES -#define KSTACK_PAGES 4 /* includes pcb */ +#ifdef __powerpc64__ +#define KSTACK_PAGES 8 /* includes pcb */ +#else +#define KSTACK_PAGES 8 /* includes pcb */ +#endif #endif #define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ #define USPACE (KSTACK_PAGES * PAGE_SIZE) /* total size of pcb */ |
