Date: Fri, 03 Apr 2015 21:49:25 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 199152] msdosfs writes on umount to readonly mounted fs Message-ID: <bug-199152-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199152 Bug ID: 199152 Summary: msdosfs writes on umount to readonly mounted fs Product: Base System Version: 10.1-STABLE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: longwitz@incore.de Created attachment 155169 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=155169&action=edit Patch for msdosfs In FreeBSD 10.1-STABLE #10 r279940 I see mount -r /mydosfs umount /mydosfs umount: unmount of /mydosfs failed: Operation not permitted On console: g_vfs_done():ada0p1[WRITE(offset=512, length=512)]error = 1 The next umount works. This problem was introduced by rev 275638 to head, because in the case of a readonly mounted msdosfs a call of msdosfs_sync() was introduced which failes to write in msdos_fsiflush(). This happens because the flag MSDOSFS_FSIMOD is set on the first call of msdosfs_sync(). The attached patch solves the problem for me and includes also some minor changes necessary to build the kernel with MSDOS_DEBUG. -- You are receiving this mail because: You are the assignee for the bug.
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