Messages in this thread |  | | Date | Wed, 2 May 2001 15:03:11 -0600 | From | Don Dugger <> |
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Zdenek-
Yes, this is a known problem. I sent out a patch last month that fixed this problem. Unfortunately, the patch caused some kernel hangs that I just fixed today. I'm testing the fix now so expect a new patch either this afternoon or tomorrow that will fix this.
On Wed, May 02, 2001 at 08:53:00PM +0000, Zdenek Kabelac wrote: > Hello > > Looks to me like the latest 2.4.5-pre1 is not creating > coredump for multithreaded aplications: > > ---- > $ ulimit -a > core file size (blocks) unlimited > data seg size (kbytes) unlimited > file size (blocks) unlimited > max locked memory (kbytes) unlimited > max memory size (kbytes) unlimited > open files 1024 > pipe size (512 bytes) 8 > stack size (kbytes) 8192 > cpu time (seconds) unlimited > max user processes 6144 > virtual memory (kbytes) unlimited > > $ ./testcore > Segmentation fault > > > --- test program -- > > #include <stdio.h> > #include <pthread.h> > > #define TASKS 10 > > void* thread(void* arg) > { > printf("yuk %s\n", 0xffff0000); > return 0; > } > > int main(int argc, char *argv[]) > { > pthread_t task[TASKS]; > void* ret; > int i = 0; > for(i = 0; i < TASKS; i++) > pthread_create(&task[i], NULL, thread, 0); > for(i = 0; i < TASKS; i++) > pthread_join(task[i], &ret); > > return 0; > } > --- > > > for single threadad apps there is no problem: > (just put printf after int i declaration) > $ ./testcore > Segmentation fault (core dumped) > > --- > > Am I doing something wrong ??? > > Also for quite a long time Alan's AC patches were efictively locking > my machine when threaded application was crashing - resolvin > almost original behaviour solved this problem - but I like > per-thread coredump - is there any special reason why this is still > not present in the current 2.4.4 kernel as I can see this as quite > usefull. > > > bye > > > kabi@i.am > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
-- Don Dugger "Censeo Toto nos in Kansa esse decisse." - D. Gale n0ano@valinux.com Ph: 303/938-9838 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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