Date: Mon, 18 Apr 2022 18:41:08 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 262894] Kernel Panic (page fault) with 13.1-BETA2 in g_eli & httpd Message-ID: <bug-262894-227-Yj4OOSLHb8@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-262894-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=262894 --- Comment #26 from Alexander Motin <mav@FreeBSD.org> --- (In reply to Mark Johnston from comment #24) ZFS on FreeBSD allocates all I/O memory through UMA, so it is always mapped. But just recently I made it use BIO_UNMAPPED for poor-man's scatter/gather on page boundaries to avoid one memory copy on I/O aggregation. So there should indeed be a mix of virtual and physical (represented as unmapped) addressed I/Os visible. I've even forgot about it myself when looking on this, thinking the unmapped I/O is generated by swapper. ;) But indeed it can be ZFS now. -- You are receiving this mail because: You are the assignee for the bug.home | help
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