Bug 888942
| Summary: | umount(,MNT_DETACH) for nfsv4 hangs when using sec=krb5 and network is down | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Orion Poplawski <orion> |
| Component: | nfs-utils | Assignee: | Steve Dickson <steved> |
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | high | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 18 | CC: | bfields, dkholia, jlayton, rolek, steved |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-02-05 14:03:32 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: | |||
|
Description
Orion Poplawski
2012-12-19 20:45:42 UTC
[ 131.832005] umount.nfs4 D f1585bc8 0 1959 1958 0x00000080 [ 131.832005] f1585c34 00000086 0000ea8a f1585bc8 c045a297 f705f110 644b6440 0000001c [ 131.832005] f1585bd8 c0cd5080 c0cd5080 00000282 f1585c00 f7591080 f3a27110 f1585c24 [ 131.832005] 00000000 c0d2e280 00000282 00000246 f1585c00 c097a273 f1585c2c f7ee11c5 [ 131.832005] Call Trace: [ 131.832005] [<c045a297>] ? __internal_add_timer+0x77/0xc0 [ 131.832005] [<c097a273>] ? _raw_spin_unlock_bh+0x13/0x20 [ 131.832005] [<f7ee11c5>] ? rpc_wake_up_first+0x65/0x180 [sunrpc] [ 131.832005] [<f7eda240>] ? rpc_show_tasks+0x1b0/0x1b0 [sunrpc] [ 131.832005] [<c09794d3>] schedule+0x23/0x60 [ 131.832005] [<f7ee064d>] rpc_wait_bit_killable+0x2d/0x70 [sunrpc] [ 131.832005] [<c0977fc1>] __wait_on_bit+0x51/0x70 [ 131.832005] [<f7ee0620>] ? __rpc_wait_for_completion_task+0x30/0x30 [sunrpc] [ 131.832005] [<f7ee0620>] ? __rpc_wait_for_completion_task+0x30/0x30 [sunrpc] [ 131.832005] [<c0978041>] out_of_line_wait_on_bit+0x61/0x70 [ 131.832005] [<c046c100>] ? autoremove_wake_function+0x50/0x50 [ 131.832005] [<f7ee198f>] __rpc_execute+0x11f/0x340 [sunrpc] [ 131.832005] [<c0507774>] ? mempool_alloc+0x44/0x120 [ 131.832005] [<f7ed8a50>] ? call_connect+0x90/0x90 [sunrpc] [ 131.832005] [<f7ed8a50>] ? call_connect+0x90/0x90 [sunrpc] [ 131.832005] [<c046c0a3>] ? wake_up_bit+0x23/0x30 [ 131.832005] [<f7ee1ec8>] rpc_execute+0x48/0x80 [sunrpc] [ 131.832005] [<f7ed9929>] rpc_run_task+0x59/0x70 [sunrpc] [ 131.832005] [<f7ed9a3c>] rpc_call_sync+0x3c/0x60 [sunrpc] [ 131.832005] [<f8a402fc>] _nfs4_call_sync+0x3c/0x50 [nfsv4] [ 131.832005] [<f8a403d5>] _nfs4_proc_getattr+0x95/0xa0 [nfsv4] [ 131.832005] [<f8a41bab>] nfs4_proc_getattr+0x3b/0x60 [nfsv4] [ 131.832005] [<f897f891>] __nfs_revalidate_inode+0x81/0x210 [nfs] [ 131.832005] [<f897fbd2>] nfs_revalidate_inode+0x62/0x90 [nfs] [ 131.832005] [<f89793ef>] nfs_check_verifier+0x4f/0x80 [nfs] [ 131.832005] [<f897b4da>] nfs_lookup_revalidate+0x2ba/0x440 [nfs] [ 131.832005] [<c055f8cb>] ? follow_managed+0x19b/0x200 [ 131.832005] [<c0560000>] ? unlazy_walk+0xf0/0x1a0 [ 131.832005] [<f897c184>] nfs4_lookup_revalidate+0x34/0xe0 [nfs] [ 131.832005] [<c055fedc>] complete_walk+0x8c/0xc0 [ 131.832005] [<c05611b3>] path_lookupat+0x63/0x650 [ 131.832005] [<c05617ca>] do_path_lookup+0x2a/0xb0 [ 131.832005] [<c0563df6>] user_path_at_empty+0x46/0x80 [ 131.832005] [<c097d440>] ? vmalloc_fault+0x176/0x176 [ 131.832005] [<c097d5f7>] ? do_page_fault+0x1b7/0x450 [ 131.832005] [<c0563e4f>] user_path_at+0x1f/0x30 [ 131.832005] [<c05707b1>] sys_umount+0x41/0x340 [ 131.832005] [<c04bd59c>] ? __audit_syscall_entry+0xbc/0x290 [ 131.832005] [<c04bdac6>] ? __audit_syscall_exit+0x356/0x3b0 [ 131.832005] [<c0980fdf>] sysenter_do_call+0x12/0x28 [ 131.832005] rpc.gssd S c0c119c0 0 416 1 0x00000080 [ 131.832005] f302db34 00000086 c0c11de4 c0c119c0 8d14abd2 c0bb9220 7ca9fac9 00000017 [ 131.832005] 00000000 c0cd5080 c0cd5080 00000000 f302dafc f7583080 f3249920 00000000 [ 131.832005] 0000007e 00000000 00000000 f30f9000 f30dad00 f302db7c f7f38ca8 0000007e [ 131.832005] Call Trace: [ 131.832005] [<f7f38ca8>] ? e1000_xmit_frame+0x848/0xda0 [e1000] [ 131.832005] [<c09794d3>] schedule+0x23/0x60 [ 131.832005] [<c09787e5>] schedule_hrtimeout_range_clock+0x145/0x160 [ 131.832005] [<c045a297>] ? __internal_add_timer+0x77/0xc0 [ 131.832005] [<c045a9aa>] ? internal_add_timer+0x1a/0x40 [ 131.832005] [<c045b98e>] ? mod_timer_pending+0x5e/0x140 [ 131.832005] [<c046c409>] ? add_wait_queue+0x39/0x50 [ 131.832005] [<c0978817>] schedule_hrtimeout_range+0x17/0x20 [ 131.832005] [<c0566a87>] poll_schedule_timeout+0x37/0x60 [ 131.832005] [<c0567c80>] do_sys_poll+0x310/0x430 [ 131.832005] [<c0566b80>] ? __pollwait+0xd0/0xd0 [ 131.832005] [<c0566b80>] ? __pollwait+0xd0/0xd0 [ 131.832005] [<c08b9eee>] ? ip_finish_output+0x15e/0x390 [ 131.832005] [<c08b9d90>] ? ip_fragment+0x830/0x830 [ 131.832005] [<c08baa5a>] ? ip_output+0x8a/0xd0 [ 131.832005] [<c08b9d90>] ? ip_fragment+0x830/0x830 [ 131.832005] [<c08ba200>] ? ip_local_out+0x20/0x30 [ 131.832005] [<c08ba33f>] ? ip_queue_xmit+0x12f/0x3b0 [ 131.832005] [<c054ba7d>] ? lookup_page_cgroup_used+0xd/0x30 [ 131.832005] [<c0550dbd>] ? mem_cgroup_bad_page_check+0x1d/0x30 [ 131.832005] [<c050b5fa>] ? free_pages_prepare+0x7a/0x160 [ 131.832005] [<c0527093>] ? unmap_single_vma+0x363/0x750 [ 131.832005] [<c050baea>] ? free_hot_cold_page_list+0x3a/0x80 [ 131.832005] [<c050ff0a>] ? release_pages+0x19a/0x210 [ 131.832005] [<c0537499>] ? free_pages_and_swap_cache+0x99/0xb0 [ 131.832005] [<c0525beb>] ? tlb_flush_mmu+0x5b/0x90 [ 131.832005] [<c0525c37>] ? tlb_finish_mmu+0x17/0x40 [ 131.832005] [<c052c2bd>] ? unmap_region+0x8d/0xb0 [ 131.832005] [<c045d367>] ? recalc_sigpending+0x17/0x50 [ 131.832005] [<c045db85>] ? __set_task_blocked+0x35/0x80 [ 131.832005] [<c045fda3>] ? __set_current_blocked+0x33/0x50 [ 131.832005] [<c045fe1d>] ? sigprocmask+0x5d/0xc0 [ 131.832005] [<c0567f52>] sys_ppoll+0x92/0x150 [ 131.832005] [<c04bdac6>] ? __audit_syscall_exit+0x356/0x3b0 [ 131.832005] [<c0980fdf>] sysenter_do_call+0x12/0x28 I am running Fedora 20 and I see "sec=sys" (instead of "sec=krb5") but I am running into a similar situation.
$ sudo strace -f umount -f -l /mnt/stuff
...
[pid 13157] umount("/mnt/stuff", MNT_DETACH
The command hangs at this point.
Although I'm not running Fedora, I think I had the same problem.
Applying the following commit in my kernel (3.10.24) fixed it for me.
commit 8033426e6bdb2690d302872ac1e1fadaec1a5581
Author: Jeff Layton <jlayton>
Date: Fri Jul 26 06:23:25 2013 -0400
vfs: allow umount to handle mountpoints without revalidating them
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=8033426e6bdb2690d302872ac1e1fadaec1a5581
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