Date: Tue, 21 Feb 1995 08:19:29 +1100 From: Bruce Evans <bde@zeta.org.au> To: bde@freefall.cdrom.com, davidg@Root.COM Cc: CVS-commiters@freefall.cdrom.com, cvs-sys@freefall.cdrom.com Subject: Re: cvs commit: src/sys/i386/isa icu.s Message-ID: <199502202119.IAA31791@godzilla.zeta.org.au>
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>> Fix restoring cpl in the swi_ast_phantom case. The system sometimes >> returned to user mode without enabling ASTs. The problem fixed itself > Hmmm...this sounds like the same bug that is (was?) causing Larry McVoy's >bw_tcp benchmark to 1) hang, and 2) after interrupting it the process would >hang in the kernel bouncing between the low level AST processing and the upper >layer TCP processing code. This didn't use to happen a few months ago - was >something changed to cause this? Not that I know of. The bug is very old - it is in 1.1.5 according to the sources. lmbench seemed OK (except it doesn't automatically scale to < 32MB memory) when I ran it here on Nov 29. Bruce
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