Date: Sun, 02 Dec 2018 17:59:40 +0000 From: bugzilla-noreply@freebsd.org To: ppc@FreeBSD.org Subject: [Bug 233414] [PowerPC64] OPTIONS DEBUG_MEMGUARD results in unbootable kernel Message-ID: <bug-233414-21-mN72YsWLu0@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-233414-21@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233414 --- Comment #4 from Mark Johnston <markj@FreeBSD.org> --- Created attachment 199759 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=199759&action=edit workaround (In reply to Leandro Lupori from comment #3) This is not a powerpc-specific problem, it's a limitation of memguard: some of its internal operation involve allocating from UMA, which might call into memguard again. The attached patch should allow you to guard most UMA buckets. It's a total hack and isn't intended to be committed, but might help you make progress with the use-after-free. -- You are receiving this mail because: You are the assignee for the bug.home | help
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