Date: Sat, 13 Oct 2001 00:50:46 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: John Baldwin <jhb@FreeBSD.org> Cc: Doug Rabson <dfr@FreeBSD.org>, <cvs-all@FreeBSD.org>, <cvs-committers@FreeBSD.org> Subject: RE: cvs commit: src/sys/ia64/ia64 trap.c Message-ID: <20011013004948.F549-100000@salmon.nlsystems.com> In-Reply-To: <XFMail.011012121228.jhb@FreeBSD.org>
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On Fri, 12 Oct 2001, John Baldwin wrote: > > On 12-Oct-01 Doug Rabson wrote: > > dfr 2001/10/12 04:49:11 PDT > > > > Modified files: > > sys/ia64/ia64 trap.c > > Log: > > If the faulting instruction is a cmpxchg, then isr.w and isr.r will both > > be set. We need to check isr.w before isr.r so that we can correctly > > handle a cmpxchg to a copy-on-write page. > > > > This fixes the hang-after-fork problem for dynamically linked programs. > > Wow. Good snooping. :) I love simulators.... I'll work on trying to reproduce the mutex panic I saw before tomorrow. -- Doug Rabson Mail: dfr@nlsystems.com Phone: +44 20 8348 6160 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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