Date: Fri, 06 Dec 1996 19:23:21 +0100 From: Tor Egge <Tor.Egge@idt.ntnu.no> To: peter@spinner.dialix.com Cc: smp@bluenose.na.tuns.ca, smp@freebsd.org Subject: Re: More info about fatal trap 12 Message-ID: <199612061823.TAA24340@pat.idt.unit.no> In-Reply-To: Your message of "Sat, 07 Dec 1996 02:15:12 %2B0800" References: <199612061815.CAA19205@spinner.DIALix.COM>
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> Tor Egge wrote: > > A closer examination of the kernel dump shows that the first page fault > > is from the user process /bin/sh. The call stack is > [..] > > The first access to the stack by the child process failed when trying > > to save the return value from fork. > > > > The parent process was running on CPU #1, and the child process > > was running on CPU #0. > > > > - Tor Egge > > Hmm!! The plot thickens! I noticed the failing pmap_enter was at > 0xefbfd000 which is the first stack page already, but I wasn't sure > if it was the initial creation, or if the stack had been paged out > and was failing on pagein. No pageouts. (kgdb) print/x cnt.v_free_count $20 = 0x1b607 - Tor Egge
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