I would say that you are on the right track.  The test language has
shutdown_server [timeout], but we don't have a handy start_server.  The
MySQL test suite has some examples of this kind of stuff in the rpl suite
+ t/crash_commit_before.test.  Hope that helps.  I'll be around more
tomorrow if you need any help.

On Sat, Jul 10, 2010 at 4:43 AM, LinuxJedi <email address hidden> wrote:

> Not sure how to express this in a dtr.  My best guess would be to create
> a .temporary directory, chown 000 and start drizzled which would cover
> part of this.  But how do you create a directory and chown before
> drizzled is started? (I am guessing the dtr test case has to shut down
> drizzled and start it again?).
>
> --
> Bad permissions on DATADIR/.temporary causes Segmentation Fault
> https://bugs.launchpad.net/bugs/597905
> You received this bug notification because you are a member of Drizzle-
> developers, which is subscribed to Drizzle.
>
> Status in A Lightweight SQL Database for Cloud and Web: Fix Committed
>
> Bug description:
> I ran into an obscure segmentation fault after [most likely] inadvertently
> running drizzled as root instead of as 'drizzle':
>
> [root@f12-drizzle ~]# sudo -u drizzle drizzled
> InnoDB: The InnoDB memory heap is disabled
> InnoDB: Mutexes and rw_locks use GCC atomic builtins.
> 100623 23:15:29 - drizzled got signal 11;
> This could be because you hit a bug. It is also possible that this binary
>  or one of the libraries it was linked against is corrupt, improperly
> built,
>  or misconfigured. This error can also be caused by malfunctioning
> hardware.
> We will try our best to scrape up some info that will hopefully help
> diagnose
> the problem, but since we have already crashed, something is definitely
> wrong
> and this may fail.
>
> GDB Back Trace (with some debug symbols missing):
>
> -bash-4.0$ gdb drizzled
> GNU gdb (GDB) Fedora (7.0.1-48.fc12)
> Copyright (C) 2009 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <
> http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-redhat-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /usr/sbin/drizzled...Reading symbols from
> /usr/lib/debug/usr/sbin/drizzled.debug...done.
> done.
>
> (gdb) run
> Starting program: /usr/sbin/drizzled
> [Thread debugging using libthread_db enabled]
> InnoDB: The InnoDB memory heap is disabled
> InnoDB: Mutexes and rw_locks use GCC atomic builtins.
> Program received signal SIGSEGV, Segmentation fault.
>
> (gdb) bt full
> #0  0x0000000000000000 in ?? ()
> No symbol table info available.
> #1  0x00000000006722ab in drizzled::my_error (nr=2, MyFlags=36) at
> drizzled/error.cc:140
>        format = "Can't create file '%-.200s' (errno: %d)"
>        args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area =
> 0x7fffffffb1c0,
>            reg_save_area = 0x7fffffffb0d0}}
>        ebuff = "Can't create file '/var/lib/drizzle//.temporary/ibdDJXTn'
> (errno: 13)\000\000\000\350\340\377\367\377\177\000\000
> \336\376\367\377\177\000\000K\214\336\367\377\177\000\000\000\000\000\000\000\000\000\000
> \336\376\367\377\177\000\000\001", '\000' <repeats 15 times>,
> "\001\000\000\000\000\000\000\000\350\340\377\367\377\177\000\000\b\000\000\000\000\000\000\000@
> \253\264\000\000\000\000\000\000\335\377\377\377\177\000\000\020ߺ\000\000\000\000\000\260\341\377\377\377\177\000\000\000\000\000\000\000\000\000\000@\344\377\367\377\177\000\000\360\260\377\377\377\177\000\000\b\261\377\377\377\177\000\000\000\000\000\000\001\000\000\000\346\320E\314\000\000\000\000\244\030F",
> '\000' <repeats 21 times>,
> "o\262\377\377\377\177\000\000*\n\332\366\377\177\000\000[\000\000"
> #2  0x00000000006554f4 in drizzled::internal::my_register_filename
> (fd=<value optimized out>,
>    FileName=0x24 <Address 0x24 out of bounds>, error_message_number=<value
> optimized out>,
>    MyFlags=<value optimized out>) at drizzled/internal/my_open.cc:124
> No locals.
> #3  0x0000000000654d6e in drizzled::internal::create_temp_file (
>    to=0x7fffffffb250 "/var/lib/drizzle//.temporary/ibdDJXTn",
>    dir=0xbae158 "/var/lib/drizzle//.temporary", prefix=<value optimized
> out>, MyFlags=16)
>    at drizzled/internal/mf_tempfile.cc:86
>        file = -1
>        org_file = -1
>        prefix_str = "ibXXXXXX"
> #4  0x00000000005c7965 in drizzled::mysql_tmpfile (prefix=0x24 <Address
> 0x24 out of bounds>)
>    at drizzled/session.cc:111
>        filename =
> "/var/lib/drizzle//.temporary/ibdDJXTn\000\000\000\000\320\376\367\377\177\000\000\367\031F\000\000\000\000\000`\266\321\366\377\177\000\000\350\177A\000\000\000\000\000\000\000\000\000\001\000\000\000\311\003\000\000\001\000\000\000\002",
> '\000' <repeats 15 times>"\240, ", '\000' <repeats 23 times>,
> "p\263\377\377\377\177\000\000\b\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000P\002",
> '\000' <repeats 14 times>,
> "%\032\336\366\377\177\000\000\200\376\a\367\377\177\000\000\200\000\000\000\000\000\000\000p\017\376\000\000\000\000\000\331h\330\366\377\177\000\000\b\000\000\000\000\000\000\000c7\330\366\377\177\000\000X\270\352\000\000\000\000\000x\000\000\000\000\000\000\000\260\263\377\377\377\177\000\000\002",
> '\000' <repeats 15 times>"\240, \000\000\000\000\000\000\000\000\264"...
>        fd = <value optimized out>
> #5  0x00000000006a3547 in innobase_mysql_tmpfile () at
> plugin/innobase/handler/ha_innodb.cc:1406
>
>
>
> THE FIX:
>
> Setting the ownership on /var/lib/drizzle/.temporary to the 'drizzle' user
> resolved the issue:
>
>
> [root@f12-drizzle ~]# chown -R drizzle:drizzle
> /var/lib/drizzle/.temporary/
>
> [root@f12-drizzle ~]# sudo -u drizzle drizzled
> InnoDB: The InnoDB memory heap is disabled
> InnoDB: Mutexes and rw_locks use GCC atomic builtins.
> 100623 23:14:45  InnoDB: highest supported file format is Barracuda.
> 100623 23:14:45 InnoDB Plugin 1.0.4 started; log sequence number 44534
> Listening on 0.0.0.0:9306
> Listening on :::9306
> Listening on 0.0.0.0:3306
> Listening on :::3306
> drizzled: Forcing close of thread 0 user: ''
> drizzled: ready for connections.
> Version: '2010.06.1634' Source distribution (trunk)
> drizzled: Normal shutdown
> drizzled: Shutdown complete
> 100623 23:15:00  InnoDB: Starting shutdown...
> 100623 23:15:00  InnoDB: Shutdown completed; log sequence number 44560
>
>
> SUGGESTION:
>
> Properly check for the ability to read/write on DATADIR/.temporary and
> catch the error condition.. providing a useful error message to the user
> (rather than allowing a segmentation fault condition)
>
>
>