Date: Fri, 16 Jan 2009 08:00:37 +1000 (EST) From: Peter Grehan <grehan@freebsd.org> To: "Niels S. Eliasen" <nse@delfi-konsult.com> Cc: freebsd-ppc@freebsd.org Subject: Re: panic in stwu ?? Message-ID: <20090116080037.EOG19136@dommail.onthenet.com.au>
index | next in thread | raw e-mail
Hi Niels, >>> [thread pid 9 tid 100034 ] >>> Stopped at 0x100444:: stwu r31, r1, -0xb0 It looks like a stack overflow :( This instruction is bumping the stack and storing a value into it, and the stack pointer is probably hitting a guard page. These aren't handled very well, other than dropping directly into the debugger without any message. A possible workaround is to bump up the number of pages allocated for kernel stacks. Drop this into your config file: options KSTACK_MAX_PAGES=5 (the default is 4, and keep going up 'til no overflows are seen). later, Peter.home | help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20090116080037.EOG19136>