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Remove confusing SIGSEGV message

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This commit is contained in:
Kevin Tew 2010-09-03 09:28:37 -06:00
parent 3b0de9c141
commit d138b18db7
1 changed files with 7 additions and 2 deletions
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9
src/racket/gc2/sighand.c
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@ -49,12 +49,17 @@ void fault_handler(int sn, struct siginfo *si, void *ctx)
if (si->si_code != SEGV_ACCERR) { /*SEGV_MAPERR*/ if (si->si_code != SEGV_ACCERR) { /*SEGV_MAPERR*/
if (c == SEGV_MAPERR) { if (c == SEGV_MAPERR) {
printf("SIGSEGV MAPERR si_code %i fault on addr %p\n", c, p); printf("SIGSEGV MAPERR si_code %i fault on addr %p\n", c, p);
printf("This often means %p isn't getting marked, and was prematurely freed\n", p); /* SIGSEGV MAPERRs are invalid addresses. Possible reasons:
An object is prematurely freed because it isn't getting marked correctly
An unsafe operation was used incorrectly
The stack grew beyond its bounds.
*/
} }
if (c == 0) { if (c == 0) {
/* I have no idea why this happens on linux */ /* I have no idea why this happens on linux */
/* supposedly its coming from the user via kill */ /* supposedly its coming from the user via kill */
/* so just ignore it. */ /* so just ignore it. It appears when */
/* running w/ places in GDB */
printf("SIGSEGV SI_USER SI_CODE %i fault on addr %p\n", c, p); printf("SIGSEGV SI_USER SI_CODE %i fault on addr %p\n", c, p);
#ifdef MZ_USE_PLACES #ifdef MZ_USE_PLACES
printf("pid %i uid %i thread %lx\n", si->si_pid, si->si_uid, mz_proc_thread_self()); printf("pid %i uid %i thread %lx\n", si->si_pid, si->si_uid, mz_proc_thread_self());