Date: Fri, 13 Jul 2012 23:57:26 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Dennis Glatting <freebsd@penx.com> Cc: freebsd-fs@freebsd.org, Volodymyr Kostyrko <c.kworr@gmail.com> Subject: Re: ZFS hanging Message-ID: <500099C6.6020400@FreeBSD.org> In-Reply-To: <1342187238.60733.27.camel@btw.pki2.com> References: <1341864787.32803.43.camel@btw.pki2.com> <4FFFE82B.6010109@gmail.com> <1342187238.60733.27.camel@btw.pki2.com>
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On 2012-07-13 15:47, Dennis Glatting wrote: ... > I am using clang except on my CVS mirrors. > > I found on the mirrors that the mirror itself cannot update from itself > but other hosts can update from the mirror. Somewhere in that > M3/assembly muck something crashes in the process. The only way around > the problem is to compile the /OS/ using GCC. This is a known problem with ezm3, it aligns the stack incorrectly on amd64. See also bin/162588. Possible workarounds are: - Compiling libz with clang, but with SSE disabled - Compiling the whole system with clang, but with SSE disabled - Fixing ezm3 so it aligns the stack to 16 bytes (left as exercise for the reader ;) - Rewriting cvsup in C (another nice exercise...)
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