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Hi! I used to have arch linux running on 1 btrfs partition (sda1, incl. /boot). When switching to 3.2.5 recently the system fails to boot: (after udevd) /etc/rc.sysinit: line 15: 117 Bus error mountpoint -q /proc and so on, no idea. It used to boot with 3.2.4, but 1) I obviously had some corruption in the tree, when I tried to delete a certain file I hit e.g. "kernel BUG at

...xample), power off the machine and reboot it. The file will be empty, as it can be verified after mounting the filesystem and through btrfs-debug-tree: $ btrfs-debug-tree /dev/sdb3 | egrep ''\(257 INODE_ITEM 0\) itemoff'' -B 3 -A 8 item 3 key (256 DIR_INDEX 2) itemoff 3751 itemsize 36 location key (257 INODE_ITEM 0) type FILE namelen 6 datalen 0 name: foobar item 4 key (257 INODE_ITEM 0) itemoff 3591 itemsize 160 inode generation 7 transid 7 size 0 block group 0 mode 100644 links 1 item 5 key (257 INODE_REF 256)...

[11558.527680] ------------[ cut here ]------------ [11558.527708] kernel BUG at fs/btrfs/transaction.c:1337! [11558.527730] invalid opcode: 0000 [#1] PREEMPT SMP [11558.527764] CPU 1 [11558.527776] Modules linked in: loop nls_cp437 vfat fat dm_mod xfs exportfs jfs usb_storage uas fuse ext4 jbd2 mbcache snd_hda_codec_hdmi snd_hda_codec_realtek arc4 iwlwifi snd_hda_intel snd_hda_codec uvcvideo

...rs to entries, null pointers are holes. // TheTable[NumBuckets] contains a sentinel value for easy iteration. Followed // by an array of the actual hash values as unsigned integers. StringMapEntryBase **TheTable; unsigned NumBuckets; unsigned NumItems; unsigned NumTombstones; unsigned ItemSize; *protected:* explicit StringMapImpl(unsigned itemSize) : TheTable(nullptr), is the second "protected:" a coding style that should be preserved? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachmen...

...is one 4MB andthree 8MB, one with 2 stripes. #btrfs-debug-tree /dev/mapper/vg-lvtest chunk tree leaf 20979712 items 12 free space 2557 generation 5 owner 3 fs uuid 6accfaf3-c88a-462e-85fc-35513d0b43d6 chunk uuid 65f22206-a9dd-4053-a660-61bc4ee0be12 item 0 key (DEV_ITEMS DEV_ITEM 1) itemoff 3897 itemsize 98 dev item devid 1 total_bytes 116912029696 bytes used 8627683328 item 1 key (FIRST_CHUNK_TREE CHUNK_ITEM 0) itemoff 3817 itemsize 80 chunk length 4194304 owner 2 type 2 num_stripes 1 stripe 0 devid 1 offset 0 item 2 key (FIRST_CHUNK_TREE CHUNK_ITEM 4194304) itemoff 3737 itemsize 80 chu...

Hi, I am using kernel 3.7-rc6. I have written a test application for extended attributes and have for some folders a wired behaviour: #include <stdio.h> #include <string.h> #include <attr/xattr.h> char attrs[1024]; ssize_t attrslen; int i; char value[1024]; ssize_t valuelen; int main(int argc, char *argv[]) { if (argc != 2) { fprintf(stderr, "Syntax: testxattr

...-- block layer, write caches of the disk. btrfs-debug-tree says it''s: chunk tree leaf 20971520 items 6 free space 3283 generation 4 owner 3 fs uuid 024cd2e6-d584-493c-af81-fa3e2f548abb chunk uuid 3f52ec70-89a9-4cd5-b5f0-177d7ae63de3 item 0 key (DEV_ITEMS DEV_ITEM 1) itemoff 3897 itemsize 98 dev item devid 1 total_bytes 10737418240 bytes used 2185232384 item 1 key (FIRST_CHUNK_TREE CHUNK_ITEM 0) itemoff 3817 itemsize 80 chunk length 4194304 owner 2 type 2 num_stripes 1 stripe 0 devid 1 offset 0 item 2 key (FIRST...

...Links: 1 [root@f18 dir]# rm fail-please rm: cannot remove ‘fail-please’: Cannot allocate memory [root@f18 dir]# ls -la total 4 drwxr-xr-x. 1 root root 22 Mar 1 17:33 . drwxr-xr-x. 1 root root 6 Mar 1 17:33 .. (only 257 items in debug-tree) item 4 key (257 INODE_ITEM 0) itemoff 3597 itemsize 160 inode generation 5 transid 5 size 22 block group 0 mode 40755 links 1 item 5 key (257 INODE_REF 256) itemoff 3584 itemsize 13 inode ref index 2 namelen 3 name: dir item 6 key (257 XATTR_ITEM 3817753667) itemoff 3506 itemsize 78 loc...

...ty_vector { .ptr = NULL, .size = 0, .alloc = 0 } Nice that this initializer is type-agnostic. > + > +struct generic_vector { > + void *ptr; > + size_t size; > + size_t alloc; > +}; > + > +static int > +generic_vector_extend (struct generic_vector *v, size_t n, size_t itemsize) > +{ > + void *newptr; > + > + newptr = realloc (v->ptr, (n + v->alloc) * itemsize); > + if (newptr == NULL) > + return -1; > + v->ptr = newptr; > + v->alloc += n; > + return 0; > +} Do we really want this implemented in the header? -- Eric Bla...

...mkfs.btrfs -f test.img btrfs-debug-tree test.img extent tree key (EXTENT_TREE ROOT_ITEM 0) leaf 4210688 items 10 free space 3349 generation 4 owner 2 fs uuid 2e08fd93-f24d-4f44-a226-e2116fcd544f chunk uuid dc482988-6246-46ce-9329-68bcf6d3683c item 0 key (0 BLOCK_GROUP_ITEM 4194304) itemoff 3971 itemsize 24 block group used 12288 chunk_objectid 256 flags 2 [..snip..] item 3 key (1138688 EXTENT_ITEM 4096) itemoff 3827 itemsize 42 extent refs 1 gen 1 flags 2 tree block key (0 UNKNOWN.0 0) level 0 item 4 key (1138688 TREE_BLOCK_REF 7) itemoff 3827 itemsize 0 tree block backref [..snip..]...

...of this constructor if the declaration of the constructor uses move semantics? Here is the consturctor code below: *StringMapImpl(StringMapImpl &&RHS)* * : TheTable(RHS.TheTable), NumBuckets(RHS.NumBuckets),* * NumItems(RHS.NumItems), NumTombstones(RHS.NumTombstones),* * ItemSize(RHS.ItemSize) {* * RHS.TheTable = nullptr;* * RHS.NumBuckets = 0;* * RHS.NumItems = 0;* * RHS.NumTombstones = 0;* * }* Thank you very much! BR, Valeriy -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachm...

...IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> + +#include "vector.h" + +int +generic_vector_reserve (struct generic_vector *v, size_t n, size_t itemsize) +{ + void *newptr; + + newptr = realloc (v->ptr, (n + v->alloc) * itemsize); + if (newptr == NULL) + return -1; + v->ptr = newptr; + v->alloc += n; + return 0; +} diff --git a/common/utils/vector.h b/common/utils/vector.h new file mode 100644 index 0000000..6468fd9 --- /dev/nu...

...f (v->ptr[i]); \ + } + +#define empty_vector { .ptr = NULL, .size = 0, .alloc = 0 } + +struct generic_vector { + void *ptr; + size_t size; + size_t alloc; +}; + +static int +generic_vector_extend (struct generic_vector *v, size_t n, size_t itemsize) +{ + void *newptr; + + newptr = realloc (v->ptr, (n + v->alloc) * itemsize); + if (newptr == NULL) + return -1; + v->ptr = newptr; + v->alloc += n; + return 0; +} + +#endif /* NBDKIT_VECTOR_H */ diff --git a/.gitignore b/.gitignore index c44fb40d..8974b64f 100644 --- a/.gitign...

I have accidently damaged the first block(s) of a btrfs partition and can''t mount it anymore. I can see that my data is still intact by running a command like: cat /dev/sda5 | hexdump -C | more Do any (experimental) tools exist which would allow me to recover the files? Thank you -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a

Thanks, I tried calling ResetAllOptionOccurrences after the run like this… // Compile the module TimeCompilations times to give better compile time // metrics. for (unsigned I = TimeCompilations; I; --I) if (int RetVal = compileModule(argv, Context)) return RetVal; if (YamlFile) YamlFile->keep(); cl::ResetAllOptionOccurrences(); return 0; } Unfortunately

This adds coalescing of adjacent extents of the same type, as mentioned by Eric Blake in the commit message here: https://github.com/libguestfs/libnbd/commit/46072f6611f80245846a445766da071e457b00cd The patch series is rather long because it detours through adding the <vector.h> library from nbdkit into libnbd and replacing ad hoc uses of realloc, char ** etc in various places. Rich.

This was a rather longer trip around the houses than I anticipated! The basic purpose of the patch series is to set $nbdkit_stdio_safe to "0" or "1" in sh and eval plugin scripts. To do that, I ended up adding a nicer way to manipulate environ lists, and to do that, I ended up adding a whole generic vector implementation which is applicable in a lot of different places.

This series of patches address several issues causing memory usage to grow indefinetely on a long lived process. These are not convenional leaks -- memory would have been freed when the LLVM context or/and JIT engine is destroyed -- but for as long as they aren't the memory is usage effectively ubounded. The issues were found using valgrind with '--show-reachable=yes' option: 1.

http://bugs.freedesktop.org/show_bug.cgi?id=20780 Summary: nouveau corrupts and crashes on 7800gt when NoAccel=false after a few drawing operations Product: xorg Version: unspecified Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium