Date: Mon, 15 Feb 2021 07:28:21 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 253158] Panic: snapacct_ufs2: bad block - Non-suJ mksnap_ffs(8) crash Message-ID: <bug-253158-3630-LLji0AeIeo@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-253158-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-253158-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253158 --- Comment #41 from Konstantin Belousov <kib@FreeBSD.org> --- (In reply to Kirk McKusick from comment #40) There are actually two bugs, fixed by two patches. One is the wrong size of the vnode vm object. BTW, I opted for additional vnode_pager_setsize() instead of setting fs_size + fs_blksize in initial vnode_create_vobject(), but I might reconsider this. It is somewhat simpler to see consequences of the fix/no fix when testing this variant of the patch alone. Second bug is that page cache read path in vfs_vnops.c is confused when uio_offset is past the end of file as recorded by vnode_pager_setsize(). It results in negative resid corrupting the state of the io request. Either of changes should fix the problem, which I want to get confirmations for. But both bugs should be fixed. --=20 You are receiving this mail because: You are the assignee for the bug.=
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