Date: Wed, 18 Apr 2001 20:14:16 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: John Baldwin <jhb@FreeBSD.org> Cc: <cvs-committers@FreeBSD.org>, <cvs-all@FreeBSD.org> Subject: Re: cvs commit: src/sys/alpha/alpha exception.s Message-ID: <Pine.BSF.4.33.0104182012240.55816-100000@salmon.nlsystems.com> In-Reply-To: <200104181717.f3IHHtJ12069@freefall.freebsd.org>
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On Wed, 18 Apr 2001, John Baldwin wrote: > jhb 2001/04/18 10:17:55 PDT > > Modified files: > sys/alpha/alpha exception.s > Log: > Back out the previous revision as it causes random sig 11's to userland > processes until a better fix is found. I can see several possible races here. For instance, if an interrupt happened partway through restoring registers trying to return to userland, we could corrupt the user's t7 pretty easily. I can't quite think of the correct solution yet though. -- 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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