[stable is included] On Saturday 11 March 2006 19:40, Martin wrote: > > The following reply was made to PR threads/80435; it has been noted by GNATS. > > From: Martin <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Cc: > Subject: Re: threads/80435: panic on high loads > Date: Sat, 11 Mar 2006 12:36:04 +0100 > > Hi, > > I've a similar panic. Not exactly the same, but in a similar > situation. You can trigger it with a slightly modified fork bomb: > > #include <stdlib.h> > #include <unistd.h> > > int main(void) > { > while(1) { > fork(); > malloc(1024); > } > return 0; > } > > > The resulting panic is: > > fault code = supervisor write, page not present > > backtrace: > pmap_qenter() > vm_thread_new() > thread_init() > slab_zalloc() > uma_zone_slab() > uma_zalloc_bucket() > uma_zalloc_arg() > thread_alloc() > proc_init() > slab_zalloc() > uma_zone_slab() > uma_zalloc_bucket() > uma_zalloc_arg() > fork1() > fork() > syscall() > Xint0x80() > -- syscall (2, FreeBSD ELF32, fork) > > Reproducible on: -STABLE > uname -a: > FreeBSD klotz.local 6.1-PRERELEASE FreeBSD 6.1-PRERELEASE #0: Mon Mar 6 > 00:21:54 CET 2006 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/KLOTZ i386 > > -- > Martin This bug unlikely should be reported on thread@, your code is a fork bomb, I think it is a warning why recent days the kernel crashed by such attack, can you reproduce it on 6.0 ?
David Xu _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"