Date: Wed, 20 May 2015 00:32:40 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 200288] Modify after Free: ZFS Message-ID: <bug-200288-3630-2Noiy5qsxI@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-200288-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-200288-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200288 Xin LI <delphij@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |delphij@FreeBSD.org --- Comment #12 from Xin LI <delphij@FreeBSD.org> --- (In reply to Larry Rosenman from comment #10) I have looked at all these backtraces and they are almost identical, and unfortunately errors like this are relatively hard to trace down, it's like looking at dead body (assertion, which we already know where the deadly wound is) but not a smoking gun (the code that touches freed memory). Debugging this can be really time consuming. I don't know why memguard didn't catch the issue (which should), did you added the loader.conf option: vm.memguard.desc="solaris" ? I *think* that the issue is probably a decreasing counter, but a quick glance at zfs_rlock.c didn't reveal one, and the code have been there for quite a while. -- You are receiving this mail because: You are the assignee for the bug.
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