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| author | jhibbits <jhibbits@FreeBSD.org> | 2014-09-05 05:07:38 +0000 |
|---|---|---|
| committer | jhibbits <jhibbits@FreeBSD.org> | 2014-09-05 05:07:38 +0000 |
| commit | ddbdadae3d18ef7ffae275c8425550bcef723269 (patch) | |
| tree | 8658715eaf25a104d5d753b376cc25e810ec7286 /sys/powerpc | |
| parent | 38e6a286e9b72285031197fb086aa9c423347bb7 (diff) | |
| download | FreeBSD-src-ddbdadae3d18ef7ffae275c8425550bcef723269.zip FreeBSD-src-ddbdadae3d18ef7ffae275c8425550bcef723269.tar.gz | |
MFC r258078,258079
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
Approved by: re
Relnotes: yes
Diffstat (limited to 'sys/powerpc')
| -rw-r--r-- | sys/powerpc/include/param.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/powerpc/include/param.h b/sys/powerpc/include/param.h index 7e7c8f1..5c25e8a 100644 --- a/sys/powerpc/include/param.h +++ b/sys/powerpc/include/param.h @@ -104,8 +104,12 @@ #define MAXPAGESIZES 1 /* maximum number of supported page sizes */ #ifndef KSTACK_PAGES +#ifdef __powerpc64__ +#define KSTACK_PAGES 8 /* includes pcb */ +#else #define KSTACK_PAGES 4 /* 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 */ |
