Cc ocfs2-devel
On 19/10/15 19:03, Joseph Qi wrote:
>
>
> On 19/10/15 17:05, Yi Li wrote:
>> mount.ocfs2 failed when read ocfs2 filesystem super error.
>> the func ocfs2_initialize_super will return before allocate ocfs2_wq.
>> ocfs2_dismount_volume will flush the ocfs2_wq, that triggered the following
>> panic.
>>
>> Oct 15 16:09:27 cnwarekv-205120 kernel: OCFS2: ERROR (device dm-34):
>> ocfs2_validate_inode_block: Invalid dinode #513: fs_generation is 1837764116
>> Oct 15 16:09:27 cnwarekv-205120 kernel: On-disk corruption discovered.
>> Please run fsck.ocfs2 once the filesystem is unmounted.
>> Oct 15 16:09:27 cnwarekv-205120 kernel: OCFS2: File system is now read-only.
>> Oct 15 16:09:27 cnwarekv-205120 kernel:
>> (mount.ocfs2,22804,44):ocfs2_read_locked_inode:537 ERROR: status = -30
>> Oct 15 16:09:27 cnwarekv-205120 kernel:
>> (mount.ocfs2,22804,44):ocfs2_init_global_system_inodes:458 ERROR: status =
>> -30
>> Oct 15 16:09:27 cnwarekv-205120 kernel:
>> (mount.ocfs2,22804,44):ocfs2_init_global_system_inodes:491 ERROR: status =
>> -30
>> Oct 15 16:09:27 cnwarekv-205120 kernel:
>> (mount.ocfs2,22804,44):ocfs2_initialize_super:2313 ERROR: status = -30
>> Oct 15 16:09:27 cnwarekv-205120 kernel:
>> (mount.ocfs2,22804,44):ocfs2_fill_super:1033 ERROR: status = -30
>> ------------[ cut here ]------------
>> Oops: 0002 [#1] SMP NOPTI
>> Modules linked in: ocfs2 rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs fscache lockd
>> grace ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager
>> ocfs2_stackglue configfs sunrpc ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4
>> nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_reject_ipv6
>> nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter
>> ip6_tables ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm
>> ib_sa ib_mad ib_core ib_addr ipv6 ovmapi ppdev parport_pc parport
>> xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea acpi_cpufreq
>> pcspkr i2c_piix4 i2c_core sg ext4 jbd2 mbcache2 sr_mod cdrom xen_blkfront
>> pata_acpi ata_generic ata_piix floppy dm_mirror dm_region_hash dm_log dm_mod
>> CPU: 1 PID: 11753 Comm: mount.ocfs2 Tainted: G E 4.14.148-200.ckv.x86_64
>> #1
>> Hardware name: Sugon H320-G30/35N16-US, BIOS 0SSDX017 12/21/2018
>> task: ffff967af0520000 task.stack: ffffa5f05484000
>> RIP: 0010:mutex_lock+0x19/0x20
>> Call Trace:
>> flush_workqueue+0x81/0x460
>> ocfs2_shutdown_local_alloc+0x47/0x440 [ocfs2]
>> ocfs2_dismount_volume+0x84/0x400 [ocfs2]
>> ocfs2_fill_super+0xa4/0x1270 [ocfs2]
>> ? ocfs2_initialize_super.isa.211+0xf20/0xf20 [ocfs2]
>> mount_bdev+0x17f/0x1c0
>> mount_fs+0x3a/0x160
>>
>> Signed-off-by: Yi Li <yiliker...@gmail.com>
>> ---
>> fs/ocfs2/localalloc.c | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
>> index 158e5af..943e5c3 100644
>> --- a/fs/ocfs2/localalloc.c
>> +++ b/fs/ocfs2/localalloc.c
>> @@ -377,7 +377,9 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
>> struct ocfs2_dinode *alloc = NULL;
>>
>> cancel_delayed_work(&osb->la_enable_wq);
>> - flush_workqueue(osb->ocfs2_wq);
>> + if (osb->ocfs2_wq) {
>> + flush_workqueue(osb->ocfs2_wq);
>> + }
>
> No need braces here.
> I think this fix is not enough since ocfs2_recovery_exit() will also
> do flush_workqueue().
>
> Thanks,
> Joseph
>
>>
>> if (osb->local_alloc_state == OCFS2_LA_UNUSED)
>> goto out;
>>
