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Date: Sun, 5 Dec 2010 14:44:14 +0100 From: Matt <jackdachef@...il.com> To: Theodore Tso <tytso@....edu> Cc: Heinz Diehl <htd@...tha.org>, Jon Nelson <jnelson@...poni.net>, htejun@...il.com, Mike Snitzer <snitzer@...hat.com>, Linux Kernel <linux-kernel@...r.kernel.org>, Andi Kleen <andi@...stfloor.org>, Chris Mason <chris.mason@...cle.com>, htd <htd@...cy-poultry.org>, linux-ext4@...r.kernel.org, linux-btrfs <linux-btrfs@...r.kernel.org>, device-mapper development <dm-devel@...hat.com> Subject: Re: [dm-devel] hunt for 2.6.37 dm-crypt+ext4 corruption? On Sun, Dec 5, 2010 at 2:24 PM, Theodore Tso <tytso@....edu> wrote: > > On Dec 5, 2010, at 5:21 AM, Milan Broz wrote: >> >> Which kernel? 2.6.37-rc? >> >> Anyone seen this with 2.6.36 and the same dmcrypt patch? >> (All info I had is that is is stable with here.) >> >> It still seems to like dmcrypt with its parallel processing is just >> trigger to another bug in 37-rc. > > I've been using a kernel which is between 2.6.37-rc2 and -rc3 with a LUKS / dm-crypt / LVM / ext4 setup for my primary file systems, and I haven't observed any corruption for the last two weeks or so. It's on my todo list to upgrade to top of Linus's tree, but perhaps this is a useful data point. > > As another thought, what version of GCC are people using who are having difficulty? Could this perhaps be a compiler-related issue? > > -- Ted > > Hi Ted, to quote its output: gcc -v Using built-in specs. COLLECT_GCC=/usr/x86_64-pc-linux-gnu/gcc-bin/4.5.1/gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/4.5.1/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-4.5.1-r1/work/gcc-4.5.1/configure --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.5.1 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.1/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.5.1 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.5.1/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.5.1/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.1/include/g++-v4 --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec --disable-fixed-point --with-ppl --with-cloog --enable-lto --enable-nls --without-included-gettext --with-system-zlib --disable-werror --enable-secureplt --enable-multilib --enable-libmudflap --disable-libssp --enable-esp --enable-libgomp --enable-cld --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/4.5.1/python --enable-checking=release --enable-java-awt=gtk --enable-objc-gc --enable-languages=c,c++,java,objc,obj-c++,fortran --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --with-bugurl=http://bugs.gentoo.org/ --with-pkgversion='Gentoo Hardened 4.5.1-r1 p1.4, pie-0.4.5' Thread model: posix gcc version 4.5.1 (Gentoo Hardened 4.5.1-r1 p1.4, pie-0.4.5) output of emerge -p gcc: These are the packages that would be merged, in order: Calculating dependencies ... done! [ebuild R ] sys-devel/gcc-4.5.1-r1 USE="fortran gcj graphite gtk hardened lto mudflap (multilib) multislot nls nptl objc objc++ objc-gc openmp (-altivec) -bootstrap -build -doc (-fixed-point) (-libffi) (-n32) (-n64) -nocxx -nopie -nossp -test -vanilla" 0 kB and to be precise it's gcc 4.5.1 with some gentoo-specific fixes and fixes from upstream (4.5.2) [take a look at patchset 1.4], in my case it also has the --enable-esp functionality [hardened] which should include something like -D_FORTIFY_SOURCE=2, -fstack-protector-all and for linking/ldd: -Wl,-z,now -Wl,-z,relro (I don't know if the part with the linker and the fstack-protector is accurate) I'm adding below the output of mount of the system-partition of the system I was running the kernel on - where the [more observable] corruption was observed (checkout bd2d0210cf22f2bd0cef72eb97cf94fc7d31d8cc) -> this output got generated while I mounted it from my working (no corruption observed) system with 2.6.36 kernel - I don't know if it's useful - just in case you might need it [forgot to post this in my last email] Thanks & Regards Matt [ 607.849644] EXT4-fs (dm-7): INFO: recovery required on readonly filesystem [ 607.849651] EXT4-fs (dm-7): write access will be enabled during recovery [ 609.559363] EXT4-fs (dm-7): orphan cleanup on readonly fs [ 609.559375] EXT4-fs (dm-7): ext4_orphan_cleanup: truncating inode 2238873 to 0 bytes [ 609.559493] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231865 [ 609.559531] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231870 [ 609.559553] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2396001 [ 609.559588] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2396036 [ 609.559610] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2395699 [ 609.559675] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231859 [ 609.559695] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231868 [ 609.559715] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2396696 [ 609.559736] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2396697 [ 609.559755] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2396699 [ 609.559775] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2395948 [ 609.559809] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231856 [ 609.559830] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231866 [ 609.559850] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239446 [ 609.559872] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239447 [ 609.559892] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239454 [ 609.559912] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239458 [ 609.559933] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239033 [ 609.559992] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231858 [ 609.560012] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231862 [ 609.560033] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2393696 [ 609.560054] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2393697 [ 609.560074] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2393698 [ 609.560094] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2395268 [ 609.582087] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231130 [ 609.582147] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231860 [ 609.582179] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2371247 [ 609.595564] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2371250 [ 609.605893] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2373715 [ 609.605928] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2393813 [ 609.605958] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231417 [ 609.605980] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231854 [ 609.605999] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231864 [ 609.606019] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239111 [ 609.606039] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239113 [ 609.606069] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239114 [ 609.606099] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239120 [ 609.608409] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231602 [ 609.608452] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231861 [ 609.608483] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239420 [ 609.608512] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239421 [ 609.608542] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239426 [ 609.608572] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239637 [ 609.608604] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231603 [ 609.608634] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231855 [ 609.608664] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2255714 [ 609.608694] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2255715 [ 609.608723] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2255739 [ 609.608753] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2255645 [ 609.608797] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2141218 [ 609.608844] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2140971 [ 609.630666] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2141266 [ 609.630700] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2141267 [ 609.630722] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2394877 [ 609.630743] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2396476 [ 609.630765] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2396489 [ 609.630794] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2396512 [ 609.642390] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2229825 [ 609.642433] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231604 [ 609.657435] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2393858 [ 609.657476] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2393859 [ 609.657505] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2393860 [ 609.657535] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2394679 [ 609.658623] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2393493 [ 609.659363] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2393462 [ 609.659404] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2135731 [ 609.684858] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2135728 [ 609.684904] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239357 [ 609.685239] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239362 [ 609.697558] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239396 [ 609.697604] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239335 [ 609.697703] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 1310848 [ 609.710785] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 1310828 [ 609.713278] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231128 [ 609.713311] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231418 [ 609.713342] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256648 [ 609.713371] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256649 [ 609.713400] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256650 [ 609.713429] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2255701 [ 609.713481] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2231129 [ 609.713511] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239633 [ 609.713540] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256006 [ 609.713570] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239354 [ 609.734696] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2118116 [ 609.734739] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2118050 [ 609.734771] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256652 [ 609.734797] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256654 [ 609.734817] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256655 [ 609.734847] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239608 [ 609.734893] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2118049 [ 609.734922] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2118048 [ 609.734951] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2135750 [ 609.734981] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2257151 [ 609.738316] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2374676 [ 609.738352] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256865 [ 609.738379] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2118047 [ 609.738399] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2118046 [ 609.738419] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256098 [ 609.738439] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256099 [ 609.738458] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256100 [ 609.738477] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239408 [ 609.738502] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2115691 [ 609.742723] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2111912 [ 609.742771] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2141299 [ 609.753070] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239521 [ 609.753105] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239016 [ 609.753130] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2111888 [ 609.753151] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2111865 [ 609.753172] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256464 [ 609.753192] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2256500 [ 609.753212] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2239402 [ 609.753235] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2111910 [ 609.753255] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2111900 [ 609.762311] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2144754 [ 609.762353] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2144757 [ 609.762400] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2144771 [ 609.762428] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2144772 [ 609.762447] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2144773 [ 609.762466] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2144774 [ 609.762486] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 1310823 [ 609.762507] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 1310900 [ 609.763591] EXT4-fs (dm-7): ext4_orphan_cleanup: deleting unreferenced inode 2145297 [ 609.763700] EXT4-fs (dm-7): 122 orphan inodes deleted [ 609.763708] EXT4-fs (dm-7): 1 truncate cleaned up [ 609.763714] EXT4-fs (dm-7): recovery complete [ 610.593272] EXT4-fs (dm-7): mounted filesystem with ordered data mode. 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