Re: [9fans] crashing 9vx

[Philippe Anel <xigh@bouyapop.org>]

Could not crash with your program, but it crashed quite fast with this one:


#include <u.h>
#include <libc.h>
#include <thread.h>

enum {
    NPROC=10,
};

void
crproc(void * p)
{
    int i = (int)p;

    while (1) {
        int fd;
        char *name = smprint("/tmp/%d", i);
        fd = create(name, OWRITE, 0666);
        if (fd < 0) exits(nil);
        // free(name);
        close(fd);
        i += NPROC;
    }
}

void
threadmain(int, char**)
{
    for (int n = 0; n < NPROC-1; n++)
        proccreate(crproc, (void *)n, 4096);
    crproc((void *) (NPROC-1));
}


ron minnich wrote:
> I'm trying to create a reproducer. This little gem does crash it
> frequently. Note that tar and mk install are doing lots of creates too
> -- you're welcome to try this.
>
> term% cat lotsafiles.c
> #include <u.h>
> #include <libc.h>
>
> void
> main(int, char**)
> {
> 	int i = 0;
> 	while (1) {
> 		int fd;
> 		char *name = smprint("/tmp/%d", i);
> 		fd = create(name, OWRITE, 0666);
> 		if (fd < 0) exits(nil);
> 		close(fd);
> 		i++;
> 	}
> }
>
>
>