** Description changed:
+
+ [Impact]
+
+ * Umounts to OCFS2 filesystems will cause a kernel crash in any kernel
+ containing commit e581595ea29c (v5.3-rc1) and not containing its fix
+ b73eba2a867e (v5.5-rc5).
+
+ [Test Case]
+
+ * ocfs2_reproducer.sh (attached to this bug)
+
+ [Regression Potential]
+
+ * it could cause ocfs2 issues, so I guess its a low impact considering
amount of users.
+ * Its a straightforward fix identified by upstream developer and a clean
cherry-pick for us.
+
+ [Other Info]
+
+ * Original description:
+
I noticed the tests for ocfs2-tools/1.8.6-1ubuntu1 were constantly
retrying themselves. It's a feature we have so that transient /
occasional failures are auto-retried, but it's misfiring here because
we're not detecting that it's a consistent failure. That particular bug
is fixed, but it means that ocfs2-tools is failing on ppc64el. Here's
the important part of the log, full output attached.
[ 85.605738] BUG: Unable to handle kernel data access at 0x01744098
-
[ 85.605850] Faulting instruction address:
0xc000000000e81168
-
[ 85.605901] Oops: Kernel access of bad
area, sig: 11 [#1]
-
[ 85.605970] LE PAGE_SIZE=64K MMU=Hash SMP
NR_CPUS=2048 NUMA pSeries
-
[ 85.606029] Modules linked in: ocfs2
quota_tree ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager
ocfs2_stackglue iptable_mangle xt_TCPMSS xt_tcpudp bpfilter dm_multipath
scsi_dh_rdac scsi_dh_emc scsi_dh_alua vmx_crypto crct10dif_vpmsum sch_fq_codel
ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c
crc32c_vpmsum virtio_net virtio_blk net_failover failover
-
[ 85.606291] CPU: 0 PID: 1 Comm: systemd
Not tainted 5.3.0-18-generic #19-Ubuntu
-
[ 85.606350] NIP: c000000000e81168 LR:
c00000000054f240 CTR: 0000000000000000
-
[ 85.606410] REGS: c00000005a3e3700 TRAP:
0300 Not tainted (5.3.0-18-generic)
-
[ 85.606469] MSR: 8000000000009033
<SF,EE,ME,IR,DR,RI,LE> CR: 28024448 XER: 00000000
-
[ 85.606531] CFAR: 0000701f9806f638 DAR:
0000000001744098 DSISR: 40000000 IRQMASK: 0
-
[ 85.606531] GPR00: 0000000000007374
c00000005a3e3990 c0000000019c9100 c00000004fe462a8
-
[ 85.606531] GPR04: c00000005856d840
000000000000000e 0000000074656772 c00000004fe4a568
-
[ 85.606531] GPR08: 0000000000000000
c000000058568004 0000000001744090 0000000000000000
-
[ 85.606531] GPR12: 00000000e8086002
c000000001d60000 00007fffddd522d0 0000000000000000
-
[ 85.606531] GPR16: 0000000000000000
0000000000000000 0000000000000000 c00000000755e07c
-
[ 85.606531] GPR20: c0000000598caca8
c00000005a3e3a58 0000000000000000 c000000058292f00
-
[ 85.606531] GPR24: c000000000eea710
0000000000000000 c00000005856d840 c00000000755e074
-
[ 85.606531] GPR28: 000000006518907d
c00000005a3e3a68 c00000004fe4b160 00000000027c47b6
-
[ 85.607079] NIP [c000000000e81168]
rb_insert_color+0x18/0x1c0
-
[ 85.607137] LR [c00000000054f240]
ext4_htree_store_dirent+0x140/0x1c0
-
[ 85.607186] Call Trace:
-
[ 85.607208] [c00000005a3e3990]
[c00000000054f158] ext4_htree_store_dirent+0x58/0x1c0 (unreliable)
-
[ 85.607279] [c00000005a3e39e0]
[c000000000594cd8] htree_dirblock_to_tree+0x1b8/0x380
-
[ 85.607340] [c00000005a3e3b00]
[c0000000005962c0] ext4_htree_fill_tree+0xc0/0x3f0
-
[ 85.607401] [c00000005a3e3c00]
[c00000000054ebe4] ext4_readdir+0x814/0xce0
-
[ 85.607459] [c00000005a3e3d40]
[c000000000472d6c] iterate_dir+0x1fc/0x280
-
[ 85.607511] [c00000005a3e3d90]
[c0000000004746f0] ksys_getdents64+0xa0/0x1f0
-
[ 85.607572] [c00000005a3e3e00]
[c000000000474868] sys_getdents64+0x28/0x130
-
[ 85.607622] [c00000005a3e3e20]
[c00000000000b388] system_call+0x5c/0x70
-
[ 85.607672] Instruction dump:
-
[ 85.607703] 4082ffe8 4e800020 38600000
4e800020 60000000 60000000 e9230000 2c290000
-
[ 85.607764] 4182018c e9490000 71480001
4c820020 <e90a0008> 7c284840 2fa80000 4182006c
-
[ 85.607827] ---[ end trace
cfc53af0f8d62cef ]---
-
[ 85.610600]
-
[ 86.611522] BUG: Unable to handle kernel
data access at 0xc000030058567eff
-
[ 86.611604] Faulting instruction address:
0xc000000000403aa8
-
[ 86.611656] Oops: Kernel access of bad
area, sig: 11 [#2]
-
[ 86.611697] LE PAGE_SIZE=64K MMU=Hash SMP
NR_CPUS=2048 NUMA pSeries
-
[ 86.611748] Modules linked in: ocfs2
quota_tr
+
[ 85.605850] Faulting instruction address:
0xc000000000e81168
+
[ 85.605901] Oops: Kernel access of bad
area, sig: 11 [#1]
+
[ 85.605970] LE PAGE_SIZE=64K MMU=Hash SMP
NR_CPUS=2048 NUMA pSeries
+
[ 85.606029] Modules linked in: ocfs2
quota_tree ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager
ocfs2_stackglue iptable_mangle xt_TCPMSS xt_tcpudp bpfilter dm_multipath
scsi_dh_rdac scsi_dh_emc scsi_dh_alua vmx_crypto crct10dif_vpmsum sch_fq_codel
ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c
crc32c_vpmsum virtio_net virtio_blk net_failover failover
+
[ 85.606291] CPU: 0 PID: 1 Comm: systemd
Not tainted 5.3.0-18-generic #19-Ubuntu
+
[ 85.606350] NIP: c000000000e81168 LR:
c00000000054f240 CTR: 0000000000000000
+
[ 85.606410] REGS: c00000005a3e3700 TRAP:
0300 Not tainted (5.3.0-18-generic)
+
[ 85.606469] MSR: 8000000000009033
<SF,EE,ME,IR,DR,RI,LE> CR: 28024448 XER: 00000000
+
[ 85.606531] CFAR: 0000701f9806f638 DAR:
0000000001744098 DSISR: 40000000 IRQMASK: 0
+
[ 85.606531] GPR00: 0000000000007374
c00000005a3e3990 c0000000019c9100 c00000004fe462a8
+
[ 85.606531] GPR04: c00000005856d840
000000000000000e 0000000074656772 c00000004fe4a568
+
[ 85.606531] GPR08: 0000000000000000
c000000058568004 0000000001744090 0000000000000000
+
[ 85.606531] GPR12: 00000000e8086002
c000000001d60000 00007fffddd522d0 0000000000000000
+
[ 85.606531] GPR16: 0000000000000000
0000000000000000 0000000000000000 c00000000755e07c
+
[ 85.606531] GPR20: c0000000598caca8
c00000005a3e3a58 0000000000000000 c000000058292f00
+
[ 85.606531] GPR24: c000000000eea710
0000000000000000 c00000005856d840 c00000000755e074
+
[ 85.606531] GPR28: 000000006518907d
c00000005a3e3a68 c00000004fe4b160 00000000027c47b6
+
[ 85.607079] NIP [c000000000e81168]
rb_insert_color+0x18/0x1c0
+
[ 85.607137] LR [c00000000054f240]
ext4_htree_store_dirent+0x140/0x1c0
+
[ 85.607186] Call Trace:
+
[ 85.607208] [c00000005a3e3990]
[c00000000054f158] ext4_htree_store_dirent+0x58/0x1c0 (unreliable)
+
[ 85.607279] [c00000005a3e39e0]
[c000000000594cd8] htree_dirblock_to_tree+0x1b8/0x380
+
[ 85.607340] [c00000005a3e3b00]
[c0000000005962c0] ext4_htree_fill_tree+0xc0/0x3f0
+
[ 85.607401] [c00000005a3e3c00]
[c00000000054ebe4] ext4_readdir+0x814/0xce0
+
[ 85.607459] [c00000005a3e3d40]
[c000000000472d6c] iterate_dir+0x1fc/0x280
+
[ 85.607511] [c00000005a3e3d90]
[c0000000004746f0] ksys_getdents64+0xa0/0x1f0
+
[ 85.607572] [c00000005a3e3e00]
[c000000000474868] sys_getdents64+0x28/0x130
+
[ 85.607622] [c00000005a3e3e20]
[c00000000000b388] system_call+0x5c/0x70
+
[ 85.607672] Instruction dump:
+
[ 85.607703] 4082ffe8 4e800020 38600000
4e800020 60000000 60000000 e9230000 2c290000
+
[ 85.607764] 4182018c e9490000 71480001
4c820020 <e90a0008> 7c284840 2fa80000 4182006c
+
[ 85.607827] ---[ end trace
cfc53af0f8d62cef ]---
+
[ 85.610600]
+
[ 86.611522] BUG: Unable to handle kernel
data access at 0xc000030058567eff
+
[ 86.611604] Faulting instruction address:
0xc000000000403aa8
+
[ 86.611656] Oops: Kernel access of bad
area, sig: 11 [#2]
+
[ 86.611697] LE PAGE_SIZE=64K MMU=Hash SMP
NR_CPUS=2048 NUMA pSeries
+
[ 86.611748] Modules linked in: ocfs2
quota_tr-- You received this bug notification because you are a member of Ubuntu Server, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/1852122 Title: ocfs2-tools is causing kernel panics in Ubuntu Focal (Ubuntu-5.4.0-9.12) To manage notifications about this bug go to: https://bugs.launchpad.net/ocfs2-tools/+bug/1852122/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
