http://bugzilla.novell.com/show_bug.cgi?id=556177#c shuang qiu <sqiu@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |sqiu@novell.com AssignedTo|bnc-team-screening@forge.pr |xwhu@novell.com |ovo.novell.com | -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c2 Lenz Grimmer <lenz@grimmer.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |lenz@grimmer.com --- Comment #2 from Lenz Grimmer <lenz@grimmer.com> 2009-11-30 16:39:36 UTC --- FWIW, The same happens on my 32bit system: $ sudo lvcreate -s --size=5G --name=varlibmysql_snapshot /dev/system/varlibmysql system-varlibmysql_snapshot: event registration failed: 23306:3 libdevmapper-event-lvm2snapshot.so.2.02 dlopen failed: /lib/libdevmapper-event-lvm2snapshot.so.2.02: undefined symbol: lvm2_run system/snapshot0: snapshot segment monitoring function failed. Logical volume "varlibmysql_snapshot" created -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c4 Oskar Schüßler <oskar.schuessler@gmx.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |oskar.schuessler@gmx.de --- Comment #4 from Oskar Schüßler <oskar.schuessler@gmx.de> 2010-01-08 09:50:11 UTC --- (In reply to comment #3)

Hi all,

The latest package in opensuse build service should fix this already. Check the latest changelog: ------------------------------------------------------------------- Fri Nov 27 20:39:20 CST 2009 - xwhu@novell.com

- Link liblvm2cmd.so to libdevmapper-event.so (bnc#556177)

Please test and feedback. Thanks a lot. I have created the link, I tried the LD_PRELOAD trick and last I installed the version lvm2-2.02.45-15.1.x86_64 but nothing works. The scary messages are still remaining. Also the link is not created during installation of the a.m. version.

-- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c6 --- Comment #6 from Oskar Schüßler <oskar.schuessler@gmx.de> 2010-01-08 12:37:36 UTC --- (In reply to comment #5)

(In reply to comment #4)

...

(In reply to comment #3)

...

Hi all,

The latest package in opensuse build service should fix this already. Check the latest changelog: ------------------------------------------------------------------- Fri Nov 27 20:39:20 CST 2009 - xwhu@novell.com

- Link liblvm2cmd.so to libdevmapper-event.so (bnc#556177)

Please test and feedback. Thanks a lot. I have created the link, I tried the LD_PRELOAD trick and last I installed the version lvm2-2.02.45-15.1.x86_64 but nothing works. The scary messages are still remaining. Also the link is not created during installation of the a.m. version.

It's not about creating symbolic link from liblvm2cmd.so to libdevmapper-event.so, but linking liblvm2cmd.so with libdevmapper-event.so while compiling the package. Sorry about the confusion.

Have you checked the changelog of lvm2? (using rpm -q --changelog lvm2). I'm not sure about the version number.

here are the latest entries in changelog: * Sun Nov 29 2009 xwhu@novell.com - Link liblvm2cmd.so to libdevmapper-event.so (bnc#556177) * Sun Nov 15 2009 meissner@suse.de - quilt refreshed all patches. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c8 --- Comment #8 from Oskar Schüßler <oskar.schuessler@gmx.de> 2010-01-15 13:42:43 UTC --- (In reply to comment #7)

(In reply to comment #6)

...

(In reply to comment #5)

...

(In reply to comment #4)

...

(In reply to comment #3)

...

Hi all,

The latest package in opensuse build service should fix this already. Check the latest changelog: ------------------------------------------------------------------- Fri Nov 27 20:39:20 CST 2009 - xwhu@novell.com

- Link liblvm2cmd.so to libdevmapper-event.so (bnc#556177)

Please test and feedback. Thanks a lot. I have created the link, I tried the LD_PRELOAD trick and last I installed the version lvm2-2.02.45-15.1.x86_64 but nothing works. The scary messages are still remaining. Also the link is not created during installation of the a.m. version.

It's not about creating symbolic link from liblvm2cmd.so to libdevmapper-event.so, but linking liblvm2cmd.so with libdevmapper-event.so while compiling the package. Sorry about the confusion.

Have you checked the changelog of lvm2? (using rpm -q --changelog lvm2). I'm not sure about the version number.

here are the latest entries in changelog:

* Sun Nov 29 2009 xwhu@novell.com - Link liblvm2cmd.so to libdevmapper-event.so (bnc#556177)

* Sun Nov 15 2009 meissner@suse.de - quilt refreshed all patches.

em. That's strange indeed. I got no error on my side. Would you please copy/paste the erorr message here again ? And also a result of 'ldd /lib/liblvm2cmd.so' is very helpful.

Thanks.

Here the requested output: ldd /lib64/liblvm2cmd.so linux-vdso.so.1 => (0x00007fffbfd8e000) libdevmapper-event.so.1.02 => /lib64/libdevmapper-event.so.1.02 (0x00007f677f227000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f677f00b000) libdevmapper.so.1.02 => /lib64/libdevmapper.so.1.02 (0x00007f677edf1000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f677ebed000) libc.so.6 => /lib64/libc.so.6 (0x00007f677e892000) /lib64/ld-linux-x86-64.so.2 (0x00007f677f6f7000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f677e673000) lvcreate -L 1G -s -n mmsnap /dev/slr-big/data slr--big-mmsnap: event registration failed: 10055:3 libdevmapper-event-lvm2snapshot.so.2.02 dlopen failed: /lib64/libdevmapper-event-lvm2snapshot.so.2.02: undefined symbol: lvm2_run slr-big/snapshot0: snapshot segment monitoring function failed. Logical volume "mmsnap" created -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c10 flo gleixner <gleixner@bib-bvb.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |gleixner@bib-bvb.de --- Comment #10 from flo gleixner <gleixner@bib-bvb.de> 2010-02-12 19:28:50 UTC --- Have this bug too. My backup routine relies on lvm snapshots. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c12 Uwe Meyer-Gruhl <f+novell@congenio.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |f+novell@congenio.de --- Comment #12 from Uwe Meyer-Gruhl <f+novell@congenio.de> 2010-02-28 14:44:41 UTC --- I would like a fix for this as well, although it seems cosmetic. lvm2-2.02.45-11.1 does not fix it and I cannot find a more recent version. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c14 --- Comment #14 from Xinwei Hu <xwhu@novell.com> 2010-03-02 10:03:03 UTC --- (In reply to comment #13)

I think, that this is not cosmetic. At the same time as i noticed these errors, i noticed, that lvm operations work sometimes and sometimes not. I filed a bug 581590 for that. Please vote for this bug, it is killing my backup scripts.

Yes. It's definitely not cosmetic. I have found out it's some problem with build service(The local build with the source works, while the 'osc build' command produce the problematic package). Trying to fix this now. FYI. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c16 --- Comment #16 from Nigel Wade <nmw@ion.le.ac.uk> 2010-03-05 10:43:39 UTC --- Could you be a little less cryptic about its location, please? If I could find it, I'd test it (the Internet is quite large...) The only location I can think of which might relate to "Base:System" is: http://download.opensuse.org/repositories/Base:/System/openSUSE_11.2 but there is no sign of any lvm2 package in there. I do see a package in openSUSE_Factory, but it was my understanding that that is for pre-release 11.3 packages, and if I 'rpm -i --test' the lvm2 package in there it won't install because of failed dependencies. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c18 --- Comment #18 from Nigel Wade <nmw@ion.le.ac.uk> 2010-03-06 11:07:08 UTC --- Yes, I know that an rpm can be found in the factory tree. I said that in my post. But as I also explained, that rpm won't install in 11.2 because of failed dependencies. Presumably because the factory tree is 11.3 pre-release. What's needed is a patch/update for 11.2, since this bug is posted against 11.2. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c20 --- Comment #20 from Nigel Wade <nmw@ion.le.ac.uk> 2010-03-08 11:51:20 UTC --- (In reply to comment #19)

Install of said rpm via "zypper in" worked for me - no failed dependencies.

And the messages are gone, BTW.

How have you configured the repo in zypper? I cannot get zypper to recognize the Base:System factory at all. I can install from http://download.opensuse.org/factory/repo/oss/, but that lvm2 package (2.02.45-15.7) still has the same problem. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c22 Bruno Friedmann <bruno@ioda-net.ch> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bruno@ioda-net.ch --- Comment #22 from Bruno Friedmann <bruno@ioda-net.ch> 2010-05-08 06:12:24 UTC --- Why is the corrected package not been in the stable branch http://download.opensuse.org/repositories/Base:/System/openSUSE_11.2/x86_64/ ? Not every production server are allowed to use "factory" rpm . -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c24 --- Comment #24 from flo gleixner <gleixner@bib-bvb.de> 2010-06-08 21:54:47 UTC --- Can we expect the fix in 11.2 updates some day? Is there anything missing? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c26 Thomas Rachel <novell@glglgl.de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |novell@glglgl.de --- Comment #26 from Thomas Rachel <novell@glglgl.de> 2010-06-28 15:54:56 UTC --- (In reply to comment #25)

(In reply to comment #24)

...

Can we expect the fix in 11.2 updates some day? Is there anything missing?

I've submit a request against 11.2. Not sure when the update will be released yet.

Thanks.

after applying this lvm2 package, I first get an error telling me that device-mapper should be updated too (because some symbol is missing in a .so, sorry, have already closed the window) so that the version of this package or this .so should be added as a requirement to the lvm2 package. After having upgraded both, I get event registration failed: 31418:3 libdevmapper-event-lvm2snapshot.so.2.02 dlopen failed: /lib/liblvm2cmd.so.2.02: undefined symbol: dm_udev_set_sync_support so unfortunately there is another thing missing... It would be kind if this could be fixed before making it official -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c28 --- Comment #28 from Xinwei Hu <xwhu@novell.com> 2010-06-29 05:04:48 UTC --- (In reply to comment #26)

(In reply to comment #25)

...

(In reply to comment #24)

...

Can we expect the fix in 11.2 updates some day? Is there anything missing?

I've submit a request against 11.2. Not sure when the update will be released yet.

Thanks.

after applying this lvm2 package, I first get an error telling me that device-mapper should be updated too (because some symbol is missing in a .so, sorry, have already closed the window) so that the version of this package or this .so should be added as a requirement to the lvm2 package.

After having upgraded both, I get

event registration failed: 31418:3 libdevmapper-event-lvm2snapshot.so.2.02 dlopen failed: /lib/liblvm2cmd.so.2.02: undefined symbol: dm_udev_set_sync_support

so unfortunately there is another thing missing...

It would be kind if this could be fixed before making it official

The version in Base:System now is prepared for 11.3 now. It cannot work with 11.2. Sorry. I'm trying to figure out how to make any update for 11.2. still. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c32 --- Comment #32 from Marcus Meissner <meissner@novell.com> 2010-07-07 14:27:18 UTC --- would be fine by me. +1 (looks a bit like a --as-needed problem in the first comments) -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c34 Christian Dengler <cdengler@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED InfoProvider|maintenance@opensuse.org | --- Comment #34 from Christian Dengler <cdengler@novell.com> 2010-07-08 12:21:13 UTC --- ok, update process started. Be so kind and submit a patchinfo. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c36 --- Comment #36 from Xinwei Hu <xwhu@novell.com> 2010-07-16 10:19:01 UTC --- (In reply to comment #35)

The bug exists in 11.3, also!

With another error message, but same monitoring fail: d1:~# lvcreate -s -L2G -n backup /dev/virtual/pandora virtual-backup: event registration failed: 5144:3 libdevmapper-event-lvm2snapshot.so.2.02 dlopen failed: /lib64/liblvm2cmd.so.2.02: undefined symbol: dm_event_register_handler virtual/snapshot0: snapshot segment monitoring function failed. Logical volume "backup" created

The system is upgraded from 11.2 to 11.3 an hour ago.

I REALLY NEED this working in 11.3! That's why I've upgraded.

This is a build service specific issue. I'm very sorry that this regression was skipped during RC phase. I've just submit an package into Base:System to fix this. Would you try that first ? Meanwhile, I'll provide another maintenance update for 11.3 asap. Thank you for bring this up and sorry for the inconvenient. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c38 --- Comment #38 from Bruno Friedmann <bruno@ioda-net.ch> 2010-07-20 05:02:46 UTC --- On 11.3 full updates success uname -a Linux walt 2.6.34-12-default #1 SMP 2010-06-29 02:39:08 +0200 x86_64 x86_64 x86_64 GNU/Linux lvcreate -v -s --size=5G --name=snaptmp /dev/vgsystem/lvtmp Setting chunksize to 8 sectors. Setting logging type to disk Finding volume group "vgsystem" Archiving volume group "vgsystem" metadata (seqno 6). Creating logical volume snaptmp Creating volume group backup "/etc/lvm/backup/vgsystem" (seqno 7). Found volume group "vgsystem" Creating vgsystem-snaptmp Loading vgsystem-snaptmp table (253:11) Resuming vgsystem-snaptmp (253:11) Clearing start of logical volume "snaptmp" Creating logical volume snapshot0 Found volume group "vgsystem" Found volume group "vgsystem" Creating vgsystem-lvtmp-real Loading vgsystem-lvtmp-real table (253:12) Resuming vgsystem-lvtmp-real (253:12) Loading vgsystem-lvtmp table (253:3) Creating vgsystem-snaptmp-cow Loading vgsystem-snaptmp-cow table (253:13) Resuming vgsystem-snaptmp-cow (253:13) Loading vgsystem-snaptmp table (253:11) Suspending vgsystem-lvtmp (253:3) with filesystem sync with device flush Suspending vgsystem-lvtmp-real (253:12) with filesystem sync with device flush Found volume group "vgsystem" Loading vgsystem-lvtmp-real table (253:12) Suppressed vgsystem-lvtmp-real identical table reload. Loading vgsystem-snaptmp-cow table (253:13) Suppressed vgsystem-snaptmp-cow identical table reload. Resuming vgsystem-lvtmp-real (253:12) Resuming vgsystem-snaptmp (253:11) Resuming vgsystem-lvtmp (253:3) Monitoring vgsystem/snapshot0 vgsystem-snaptmp: event registration failed: 29582:3 libdevmapper-event-lvm2snapshot.so.2.02 dlopen failed: /lib64/liblvm2cmd.so.2.02: undefined symbol: dm_event_register_handler vgsystem/snapshot0: snapshot segment monitoring function failed. Creating volume group backup "/etc/lvm/backup/vgsystem" (seqno 8). Logical volume "snaptmp" created -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c40 --- Comment #40 from Xinwei Hu <xwhu@novell.com> 2010-07-20 09:08:45 UTC --- (In reply to comment #37)

Hi Xin, you submitted a package for device mapper. Planned was an update for lvm2.

Is an update of package device-mapper enough?

LVM2 and device-mapper share the same source code, but still we need an update for LVM2 here.

If it is not fixed in 11.3, be so kind and submit also an update for it.

Submit into openSUSE11.3:Update:Test ?

Is sle also affected?

As far as I tested, SLE is not affected. Thanks. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c42 --- Comment #42 from Christian Dengler <cdengler@novell.com> 2010-07-20 12:47:07 UTC ---

I will change the patchinfo.

Sry, be so kind and submit a new patchinfo for 11.3 For 11.2 the update is ready for testing in the update:test-repo -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c Swamp Workflow Management <swamp@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:running:34407:low |. |maint:released:11.2:34425 | -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c45 Swamp Workflow Management <swamp@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|. |. maint:running:35083:low --- Comment #45 from Swamp Workflow Management <swamp@suse.com> 2010-08-11 11:41:06 UTC --- The SWAMPID for this issue is 35083. This issue was rated as low. Please submit fixed packages until 2010-09-08. Also create a patchinfo file using this link: https://swamp.suse.de/webswamp/wf/35083 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c47 --- Comment #47 from Xinwei Hu <xwhu@novell.com> 2010-08-12 03:59:40 UTC --- (In reply to comment #46)

(In reply to comment #44)

...

It seems that a fix for this bug was released for OpenSUSE 11.2 on July 26th. My OpenSUSE 11.3 machine (64-bit) still suffers from the bug. When will an update for it be available?

Oh, sorry. There was no submission from the packager for 11.3 and then it goes under.

Xin,

be so kind and submit it also for 11.3. New SwampID: 35083

Submitted. Thanks. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=556177 https://bugzilla.novell.com/show_bug.cgi?id=556177#c Swamp Workflow Management <swamp@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|. maint:running:35083:low |. |maint:released:11.3:35112 | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=556177 http://bugzilla.novell.com/show_bug.cgi?id=556177#c50 --- Comment #50 from Bernhard Wiedemann <bwiedemann@suse.com> --- This is an autogenerated message for OBS integration: This bug (556177) was mentioned in https://build.opensuse.org/request/show/42764 11.2:Test / device-mapper https://build.opensuse.org/request/show/43464 Factory / device-mapper https://build.opensuse.org/request/show/45444 11.3:Test / device-mapper -- You are receiving this mail because: You are on the CC list for the bug.