Date: Sun, 5 Oct 2008 00:18:07 -0700 From: Jos Backus <jos@catnook.com> To: Tim Kientzle <kientzle@freebsd.org> Cc: Andrey Chernov <ache@nagual.pp.ru>, freebsd-current@freebsd.org Subject: Re: firefox3-bin crashes near arc4random_buf() Message-ID: <20081005071807.GA54013@lizzy.catnook.local> In-Reply-To: <48E80F02.4070309@freebsd.org> References: <20081004080511.GA72641@lizzy.catnook.local> <20081004161024.GA67323@nagual.pp.ru> <20081004222249.GA48928@lizzy.catnook.local> <48E80F02.4070309@freebsd.org>
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On Sat, Oct 04, 2008 at 05:49:06PM -0700, Tim Kientzle wrote: > Jos Backus wrote: > > Any suggestions on how to debug this? > > First, you need to share the first items in the > backtrace, as they're more likely to be correct. > I agree with Andrey that it looks like there's > some stack corruption, so it's hard to trust > anything except the first couple of entries. Okay, I'll do that tomorrow. > You should also look at several independent core > dumps and see how much the backtraces have in common. So far the bottom-most frames have looked the same every time. I'll do some more thorough comparisons and report the results. > It might also be worth running it under ktrace, > forcing the crash, then sharing the last few dozen > lines from kdump output. I'll try that, too. Thank you, Andrey and Tim, for your help so far. -- Jos Backus jos at catnook.com
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