From: Randolph Chung <randolph@tausq.org>
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] [patch] handle pagefaults on unaligned access
Date: Sun, 19 Oct 2003 12:03:06 -0700 [thread overview]
Message-ID: <20031019190306.GG24406@tausq.org> (raw)
In-Reply-To: <200310191846.h9JIkxMq027125@hiauly1.hia.nrc.ca>
> What's generating the unaligned ldh? This will really kill performance.
> GCC shouldn't do this...
it was one of the testcases, but i haven't figured out which one yet. it
doesn't do this for every testcase...
> My system also crashed last night, probably running the gcj testsuite.
probably, it crashed my machine 3 times before i figured it out :-)
if you do "echo 0 >> /proc/sys/kernel/unaligned-trap" before you run the
test then it should SIGBUS when it does this...
i'll try to debug this a bit more as well. but we shouldn't crash the
kernel in any case :)
randolph
--
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
prev parent reply other threads:[~2003-10-19 18:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-19 6:38 [parisc-linux] [patch] handle pagefaults on unaligned access Randolph Chung
2003-10-19 13:43 ` Joel Soete
2003-10-19 18:46 ` John David Anglin
2003-10-19 19:03 ` Randolph Chung [this message]
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