Author: jhibbits Date: Fri Sep 5 05:07:38 2014 New Revision: 271153 URL: http://svnweb.freebsd.org/changeset/base/271153
Log: 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 Modified: stable/10/sys/powerpc/include/param.h Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/powerpc/include/param.h ============================================================================== --- stable/10/sys/powerpc/include/param.h Fri Sep 5 03:33:16 2014 (r271152) +++ stable/10/sys/powerpc/include/param.h Fri Sep 5 05:07:38 2014 (r271153) @@ -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 */ _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
