Bug 858874
| Summary: | Segmentation fault after performing lvconvert --thinpool vg/thick | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Corey Marthaler <cmarthal> |
| Component: | lvm2 | Assignee: | Zdenek Kabelac <zkabelac> |
| Status: | CLOSED ERRATA | QA Contact: | Cluster QE <mspqa-list> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 6.3 | CC: | agk, coughlan, dwysocha, heinzm, jbrassow, msnitzer, nperic, prajnoha, prockai, thornber, xiaoli, zkabelac |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | lvm2-2.02.98-1.el6 | Doc Type: | Bug Fix |
| Doc Text: |
This bug was introduced between releases and never appeared in an actual LVM release, RHEL or otherwise. No documentation needed.
|
Story Points: | --- |
| Clone Of: | 858129 | Environment: | |
| Last Closed: | 2013-02-21 08:13:50 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: | |||
| Bug Depends On: | 858129 | ||
| Bug Blocks: | |||
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Comment 1
Corey Marthaler
2012-09-19 21:32:00 UTC
(In reply to comment #1) > [root@taft-04 core_files]# gdb /sbin/lvconvert core > [...] > Core was generated by `lvconvert --thinpool vg/thick'. > Program terminated with signal 11, Segmentation fault. > #0 0x000000000045f4c8 in print_log () > Missing separate debuginfos, use: debuginfo-install lvm2-2.02.97-3.el6.x86_64 > (gdb) bt > #0 0x000000000045f4c8 in print_log () > #1 0x00000030460283cb in dm_task_run () from /lib64/libdevmapper.so.1.02 > #2 0x00000000004968b6 in ?? () <snip> like agk said: (make sure all the relevant debuginfo packages are installed, and run gdb <command> <corefile> then 'bt') You're too fast for me Mike! ;) I got the mid-air collision when attempting this again.
[root@taft-01 ~]# lvconvert --thinpool vg/thick
Converted vg/thick_tmeta to thin pool.
Segmentation fault (core dumped)
lvconvert[2115]: segfault at 7fff9ed74ffc ip 000000000045ef2b sp 00007fff9ed74fd0 error 6 in lvm[400000+e2000]
[root@taft-01 ~]# gdb /sbin/lvconvert core
Core was generated by `lvconvert --thinpool vg/thick'.
Program terminated with signal 11, Segmentation fault.
#0 print_log (level=7, file=0x30b3a2f221 "ioctl/libdm-iface.c", line=1687, dm_errno=0, format=0x30b3a2f928 "dm %s %s%s %s%s%s %s%.0d%s%.0d%s%s%c%c%s%s%s%s%s%s %.0lu %s [%u] (*%u)")
at log/log.c:187
187 {
Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.80.el6.x86_64 libselinux-2.0.94-5.3.el6.x86_64 libsepol-2.0.41-4.el6.x86_64 libudev-147-2.41.el6.x86_64 ncurses-libs-5.7-3.20090208.el6.x86_64 readline-6.0-4.el6.x86_64
(gdb) bt
#0 print_log (level=7, file=0x30b3a2f221 "ioctl/libdm-iface.c", line=1687, dm_errno=0, format=0x30b3a2f928 "dm %s %s%s %s%s%s %s%.0d%s%.0d%s%s%c%c%s%s%s%s%s%s %.0lu %s [%u] (*%u)")
at log/log.c:187
#1 0x00000030b3a283cb in _do_dm_ioctl (dmt=0x265c610) at ioctl/libdm-iface.c:1666
#2 dm_task_run (dmt=0x265c610) at ioctl/libdm-iface.c:1802
#3 0x00000000004968b6 in _info_run (name=<value optimized out>, dlid=<value optimized out>, info=0x7fff9ed76780, read_ahead=0x0, mknodes=<value optimized out>, with_open_count=1,
with_read_ahead=0, major=0, minor=0) at activate/dev_manager.c:120
#4 0x0000000000496a74 in _info (dlid=0x4da0358 "LVM-NUE1wRcawGPX2us4QFh1N0KBDK0Ss2KLE0dJJqcyuXZHYJdasbq2xqiIxbTAa7CY", with_open_count=1, with_read_ahead=0, info=0x7fff9ed76780,
read_ahead=0x0) at activate/dev_manager.c:251
#5 0x0000000000496c2b in _add_dev_to_dtree (dm=0x266add0, dtree=0x2653d30, lv=0x26678e8, layer=0x0) at activate/dev_manager.c:1080
#6 0x0000000000497010 in _add_lv_to_dtree (dm=0x266add0, dtree=0x2653d30, lv=0x26678e8, origin_only=0) at activate/dev_manager.c:1322
#7 0x00000000004971b4 in _add_lv_to_dtree (dm=0x266add0, dtree=0x2653d30, lv=0x26678e8, origin_only=<value optimized out>) at activate/dev_manager.c:1369
#8 0x00000000004971b4 in _add_lv_to_dtree (dm=0x266add0, dtree=0x2653d30, lv=0x26678e8, origin_only=<value optimized out>) at activate/dev_manager.c:1369
#9 0x00000000004971b4 in _add_lv_to_dtree (dm=0x266add0, dtree=0x2653d30, lv=0x26678e8, origin_only=<value optimized out>) at activate/dev_manager.c:1369
#10 0x00000000004971b4 in _add_lv_to_dtree (dm=0x266add0, dtree=0x2653d30, lv=0x26678e8, origin_only=<value optimized out>) at activate/dev_manager.c:1369
#11 0x00000000004971b4 in _add_lv_to_dtree (dm=0x266add0, dtree=0x2653d30, lv=0x26678e8, origin_only=<value optimized out>) at activate/dev_manager.c:1369
#12 0x00000000004971b4 in _add_lv_to_dtree (dm=0x266add0, dtree=0x2653d30, lv=0x26678e8, origin_only=<value optimized out>) at activate/dev_manager.c:1369
#13 0x00000000004971b4 in _add_lv_to_dtree (dm=0x266add0, dtree=0x2653d30, lv=0x26678e8, origin_only=<value optimized out>) at activate/dev_manager.c:1369
FWIW, same issue when converting a striped volume.
[root@taft-04 ~]# lvcreate -i 2 -n stripe_pool -L 100M taft
Using default stripesize 64.00 KiB
Rounding size (25 extents) up to stripe boundary size (26 extents)
Logical volume "stripe_pool" created
[root@taft-04 ~]# lvs -a -o +devices
LV VG Attr LSize Devices
stripe_pool taft -wi-a--- 104.00m /dev/sdb1(0),/dev/sdc1(0)
[root@taft-04 ~]# lvconvert --thinpool taft/stripe_pool
Converted taft/stripe_pool_tmeta to thin pool.
Segmentation fault (core dumped)
[root@taft-04 core_files]# gdb /sbin/lvconvert core
[...]
Core was generated by `lvconvert --thinpool taft/stripe_pool'.
Program terminated with signal 11, Segmentation fault.
#0 print_log (level=7, file=0x304602f221 "ioctl/libdm-iface.c", line=1687, dm_errno=<value optimized out>, format=<value optimized out>) at log/log.c:279
279 if (verbose_level() > _LOG_DEBUG)
(gdb) bt
#0 print_log (level=7, file=0x304602f221 "ioctl/libdm-iface.c", line=1687, dm_errno=<value optimized out>, format=<value optimized out>) at log/log.c:279
#1 0x00000030460283cb in _do_dm_ioctl (dmt=0x1f20580) at ioctl/libdm-iface.c:1666
#2 dm_task_run (dmt=0x1f20580) at ioctl/libdm-iface.c:1802
#3 0x00000000004968b6 in _info_run (name=<value optimized out>, dlid=<value optimized out>, info=0x7fffb6e337b0, read_ahead=0x0, mknodes=<value optimized out>, with_open_count=1,
with_read_ahead=0, major=0, minor=0) at activate/dev_manager.c:120
#4 0x0000000000496a74 in _info (dlid=0x4978288 "LVM-Lujmrlz1MIu5coMf3LtedmeribBhfZGMnRTvRfaz1cH4ZAypouV0bz7mSkMRsgoh", with_open_count=1, with_read_ahead=0, info=0x7fffb6e337b0,
read_ahead=0x0) at activate/dev_manager.c:251
#5 0x0000000000496c2b in _add_dev_to_dtree (dm=0x1f3bed0, dtree=0x1f20ea0, lv=0x1f369d8, layer=0x0) at activate/dev_manager.c:1080
#6 0x0000000000497010 in _add_lv_to_dtree (dm=0x1f3bed0, dtree=0x1f20ea0, lv=0x1f369d8, origin_only=0) at activate/dev_manager.c:1322
[...]
lvconvert functionality has been updated upstream. https://www.redhat.com/archives/lvm-devel/2012-October/msg00015.html lvcreate lv1 && lv2 (i.e. mirrors) and use them for thinpool: lvconvert --thinpool vg/lv1 --poolmetadata vg/lv2 *** Bug 858129 has been marked as a duplicate of this bug. *** *** Bug 860848 has been marked as a duplicate of this bug. *** Is there any special reason that lvconvert has different arguments allowed than lvcreate (for thinp)? It does not make life much easier if different switches are used for the similar functionality. lvcreate supports -T, --thin and --thinpool lvcreate supports only --thinpool Other than that, the error displayed while using the commadn without --poolmetadata is not too descriptive: lvconvert --thinpool vg_forthin/mirror Uknown metadata. This sound as if it read metadata which is not in the correct format or something (at least to me, and I would guess to most system admins). Could be written maybe as: You must supply thin pool metadata LV for conversion or --poolmetadata is a mandatory field/option/argument That said, I am marking this BZ as verified with following software versions: lvm2-libs-2.02.98-2.el6.x86_64 lvm2-devel-2.02.98-2.el6.x86_64 lvm2-cluster-2.02.98-2.el6.x86_64 lvm2-2.02.98-2.el6.x86_64 device-mapper-libs-1.02.77-2.el6.x86_64 device-mapper-event-libs-1.02.77-2.el6.x86_64 device-mapper-event-1.02.77-2.el6.x86_64 device-mapper-1.02.77-2.el6.x86_64 cmirror-2.02.98-2.el6.x86_64 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2013-0501.html |