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List: evms-devel
Subject: RE: [Evms-devel] Raid5 "Fix" - segfault on save.
From: Mike Tran <mhtran () us ! ibm ! com>
Date: 2004-06-23 15:01:04
Message-ID: 1088002863.4373.8.camel () star2 ! austin ! ibm ! com
[Download RAW message or body]
Hello Mark,
You have found a bug in the raid5 plugin. To help me fixing this bug,
please send the evms-engine.log to me, mhtran@us.ibm.com
Thanks,
Mike T.
On Tue, 2004-06-22 at 08:45, Buechler, Mark R wrote:
> I forgot to mention this is v 2.3.1.
>
>
>
>
> ______________________________________________________________________
>
> From: Buechler, Mark R [mailto:Mark_R_Buechler@bausch.com]
> Sent: Tuesday, June 22, 2004 8:45 AM
> To: 'evms-devel@lists.sourceforge.net'
> Subject: [Evms-devel] Raid5 "Fix" - segfault on save.
>
>
>
>
> I need some help resurrecting a raid5 set. The region is marked
> corrupt. When I enter evmsn (or evmsgui) and I attempt to "Fix" the
> region it is successful, however, when I save changes I get a
> segfault. All devices in the region are present. Here some details:
>
>
>
> Can anyone please help? I have several hundred gigs of data on this
> set.
>
>
>
> Raid 5 consisting of 15 physicals and one spare each with a single
> partition.
>
>
>
> Last few lines of "-d everything":
>
> ------------------------------------------------------
>
>
>
> Jun 22 08:39:20 corbin2 _7_ Engine: engine_read_object: Exit. Return
> value is 2048.
>
> Jun 22 08:39:20 corbin2 _7_ LocalDskMgr: write_to_cache: Enter.
>
> Jun 22 08:39:20 corbin2 _7_ LocalDskMgr: write_to_cache: Exit. Return
> value = 2
>
> Jun 22 08:39:20 corbin2 _9_ Engine: engine_free: Enter.
>
> Jun 22 08:39:20 corbin2 _9_ Engine: engine_free: Request to free
> memory at 0x810ed60.
>
> Jun 22 08:39:20 corbin2 _9_ Engine: engine_free: Exit.
>
> Jun 22 08:39:20 corbin2 _7_ LocalDskMgr: LD_read: Exit. Return value
> = 0
>
> Jun 22 08:39:20 corbin2 _7_ DosSegMgr: SEG_Read: Exit. Return value =
> 0
>
> Jun 22 08:39:20 corbin2 _7_ MDRaid5RegMgr: md_read_metadata_from_disk:
> Exit. Return value = 0
>
> Jun 22 08:39:20 corbin2 _7_ MDRaid5RegMgr: md_validate_saved_sb:
> Enter.
>
> Jun 22 08:39:20 corbin2 _9_ MDRaid5RegMgr: md_validate_saved_sb: Bad
> signature or version
>
> Jun 22 08:39:20 corbin2 _7_ MDRaid5RegMgr: md_validate_saved_sb:
> Exit. Return value = 6
>
> Jun 22 08:39:20 corbin2 _9_ MDRaid5RegMgr: md_check_for_saved_sb: sdo1
> does not have a valid MD saved SB info
>
> Jun 22 08:39:20 corbin2 _9_ Engine: engine_free: Enter.
>
> Jun 22 08:39:20 corbin2 _9_ Engine: engine_free: Request to free
> memory at 0x80cc528.
>
> Jun 22 08:39:20 corbin2 _9_ Engine: engine_free: Exit.
>
> Jun 22 08:39:20 corbin2 _7_ MDRaid5RegMgr: md_check_for_saved_sb:
> Exit. Return value = 6
>
> Jun 22 08:39:20 corbin2 _7_ MDRaid5RegMgr: md_find_volume_for_object:
> Exit. Return value = 0
>
> Jun 22 08:39:20 corbin2 _9_ Engine: next_thing: Enter.
>
> Jun 22 08:39:20 corbin2 _9_ Engine: next_element: Enter.
>
> Jun 22 08:39:20 corbin2 _9_ Engine: next_element: Exit. Returned
> pointer is (nil).
>
> Jun 22 08:39:20 corbin2 _9_ Engine: next_thing: Exit. Returned
> pointer is (nil).
>
> Jun 22 08:39:20 corbin2 _7_ MDRaid5RegMgr: md_discover_volumes: Exit.
>
> Jun 22 08:39:20 corbin2 _9_ Engine: engine_free: Enter.
>
> Jun 22 08:39:20 corbin2 _9_ Engine: engine_free: Request to free
> memory at 0x280.
>
>
>
>
>
> Backtrace from gdb:
>
> ------------------------------------------------------
>
>
>
> Program received signal SIGSEGV, Segmentation fault.
>
> [Switching to Thread 16384 (LWP 3115)]
>
> 0x401e6a29 in free () from /lib/libc.so.6
>
> (gdb) bt
>
> #0 0x401e6a29 in free () from /lib/libc.so.6
>
> #1 0x40059b6d in engine_free (thing=0x280) at memman.c:146
>
> #2 0x40397ee7 in raid5_rediscover_region (region=0x80e6350) at
> raid5_discover.c:484
>
> #3 0x4039ba69 in raid5_commit_changes (region=0x80e6350, phase=3) at
> raid5_mgr.c:811
>
> #4 0x4003028b in commit_regions (phase=POST_ACTIVATE) at commit.c:690
>
> #5 0x40033275 in evms_commit_changes () at commit.c:2228
>
> #6 0x080619f5 in save_button_activated (item=0x278) at save.c:136
>
> #7 0x0805642e in process_horizontal_menu_events (menu=0x80c36c8,
> key=0x809a6c0) at menu.c:1175
>
> #8 0x08053294 in process_dialog_window_events (dialog=0x80e3ed0,
> key=13) at dialog.c:467
>
> #9 0x08053494 in process_modal_dialog (dialog=0x80e3ed0) at
> dialog.c:576
>
> #10 0x08061c8c in show_save_confirmation_dialog (title=0x806d974 "Save
> Changes Confirmation",
>
> cancel_label=0x806d96c "_Cancel", prompt=0x806d8a0 "Do you wish to
> save changes now or cancel?")
>
> at save.c:274
>
> #11 0x08061dab in on_save_menuitem_activated (item=0x8085af8) at
> save.c:319
>
> #12 0x08055d7b in process_menu_events (menu=0x80a2540) at menu.c:801
>
> #13 0x08058335 in actions_menuitem_activated (item=0x8070900) at
> menu.c:1934
>
> #14 0x080555df in process_menubar_events (key=97) at menu.c:479
>
> #15 0x080688a9 in process_current_view_events () at views.c:1000
>
> #16 0x08054e65 in main_event_loop () at main.c:300
>
> #17 0x08054f5d in main (argc=5, argv=0xbffff4e4) at main.c:361
>
> #18 0x401858ae in __libc_start_main () from /lib/libc.so.6
>
> (gdb)
>
>
>
>
>
>
> Bausch & Lomb
> 150 Years of Perfecting Vision, Enhancing Life (TM)
>
>
>
>
>
>
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>
> Bausch & Lomb
> 150 Years of Perfecting Vision, Enhancing Life (TM)
>
>
>
>
>
>
> EMAIL DISCLAIMER
>
> Please Note: The information contained in this message may be
> privileged and
> confidential, protected from disclosure, and/or intended only for the
> use of
> the individual or entity named above. If the reader of this message is
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> the intended recipient, or an employee or agent responsible for
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