Bug 818855
| Summary: | can't create block backstore with readonly software RAID | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Albert Strasheim <fullung> |
| Component: | targetcli | Assignee: | Andy Grover <agrover> |
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 16 | CC: | agrover |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-08-07 23:15:42 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Can reproduce. Should be fixed in rawhide. Requires kernel 3.6.0, so can't backport to F17 (or F16) until they get that kernel. Thanks very much. For my own education, do you have the upstream commit hashes handy? kernel: 44bfd0185043c9a92b2f20a4508dd6cd3bb84ded rtslib-fb (git://github.com/agrover/rtslib-fb.git): d7b27b5e3085da5ca89a43b0fdd07340b0d9a118 70175a39fee2419c49a19f70a61f536afb829a15 targetcli-fb (git://github.com/agrover/targetcli-fb.git): 05c8513f21ffbda26f8e1741068971ab22d0454c |
Description of problem: I have a software RAID volume md0. I made it read-only with mdadm --readonly /dev/md0. I create a block backstore with this software RAID device in targetcli. I get a Permission denied error. Version-Release number of selected component (if applicable): kernel 3.3.2-6.fc16.x86_64 targetcli version reports 2.0rc1.fb8 but actually I have fb11. I notice that the package has: /usr/lib/python2.7/site-packages/targetcli-2.0rc1.fb8-py2.7.egg-info but also /usr/share/doc/targetcli-2.0rc1.fb11/README How reproducible: Always Actual results: Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/configshell/shell.py", line 990, in run_interactive self._cli_loop() File "/usr/lib/python2.7/site-packages/configshell/shell.py", line 813, in _cli_loop self.run_cmdline(cmdline) File "/usr/lib/python2.7/site-packages/configshell/shell.py", line 934, in run_cmdline self._execute_command(path, command, pparams, kparams) File "/usr/lib/python2.7/site-packages/configshell/shell.py", line 909, in _execute_command result = target.execute_command(command, pparams, kparams) File "/usr/lib/python2.7/site-packages/targetcli/ui_node.py", line 84, in execute_command pparams, kparams) File "/usr/lib/python2.7/site-packages/configshell/node.py", line 1405, in execute_command result = method(*pparams, **kparams) File "/usr/lib/python2.7/site-packages/targetcli/ui_backstore.py", line 340, in ui_command_create raise exception IOError: [Errno 13] Permission denied Additional info: I straced targetcli during this problem: 20102 lstat("/sys/kernel/config/target/core/iblock_1/md0", {st_dev=makedev(0, 31), st_ino=68803, st_mode=S_IFDIR|0755, st_nlink=7, st_uid=0, st_gid=0, st_blksize=4096, st_blocks=0, st_size=0, st_atime=2012/05/04-08:12:22, st_mtime=2012/05/04-08:12:23, st_ctime=2012/05/04-08:12:23}) = 0 20102 lstat("/sys/kernel/config/target/core/iblock_1/md0/enable", {st_dev=makedev(0, 31), st_ino=35738, st_mode=S_IFREG|0200, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, st_blocks=0, st_size=4096, st_atime=2012/05/04-08:12:23, st_mtime=2012/05/04-08:12:23, st_ctime=2012/05/04-08:12:23}) = 0 20102 open("/sys/kernel/config/target/core/iblock_1/md0/enable", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 4 20102 fstat(4, {st_dev=makedev(0, 31), st_ino=35739, st_mode=S_IFREG|0200, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, st_blocks=0, st_size=0, st_atime=2012/05/04-08:12:23, st_mtime=2012/05/04-08:12:23, st_ctime=2012/05/04-08:12:23}) = 0 20102 fstat(4, {st_dev=makedev(0, 31), st_ino=35739, st_mode=S_IFREG|0200, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, st_blocks=0, st_size=0, st_atime=2012/05/04-08:12:23, st_mtime=2012/05/04-08:12:23, st_ctime=2012/05/04-08:12:23}) = 0 20102 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7faacb2e5000 20102 write(4, "1\n", 2) = -1 EACCES (Permission denied) 20102 close(4) = 0