Date: Fri, 16 Jan 2004 11:18:07 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Peter Losher <Peter_Losher@isc.org> Cc: current@freebsd.org Subject: Re: Fatal trap under heavy load on 5.1-p10... Message-ID: <16392.3775.357598.168310@grasshopper.cs.duke.edu> In-Reply-To: <200401160250.54593.Peter_Losher@isc.org> References: <200401160250.54593.Peter_Losher@isc.org>
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Peter Losher writes: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > After dealing w/ the traffic loads for 5.2-REL for three days, the system > popped into the debugger and halted. Here are the relevant details - If this > is a known issue and fixed in 5.2, then say so... :) > The panic is in the zero-copy sockets code. There have been many VM system changes which may have fixed it. Specifically, Alan Cox improved the sf_buf system quite a bit between 5.1 and 5.2. Can you map socow_setup+0xc9 to a source file line number in your system please? Do gdb kernel.debug <...> (gdb) list *socow_setup+0xc9 BTW, A certain way to prevent this from ever happening is to disable that code by removing options ZERO_COPY_SOCKETS from your kernel config file. Thanks, Drew
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