Public bug reported:
autofs prevents my laptop from suspending while mounts are active:
[ 1095.355009] Freezing user space processes ...
[ 1115.369769] Freezing of tasks failed after 20.005 seconds (1 tasks refusing
to freeze, wq_busy=0):
[ 1115.369833] df D ffff88011f2d34c0 0 15931 15930 0x00000004
[ 1115.369838] ffff8801170cdd58 0000000000000086 ffff8800a3ab1800
ffff8801170cdfd8
[ 1115.369843] 00000000000134c0 00000000000134c0 ffff8800a3ab1800
ffff8800a3a77320
[ 1115.369847] ffff8800b0400800 ffff8801170cdd80 ffff8800a3a77400
0000000000000000
[ 1115.369851] Call Trace:
[ 1115.369862] [<ffffffff81725919>] schedule+0x29/0x70
[ 1115.369867] [<ffffffff812acfd5>] __fuse_request_send+0x115/0x280
[ 1115.369873] [<ffffffff810ab120>] ? prepare_to_wait_event+0x100/0x100
[ 1115.369877] [<ffffffff812ad152>] fuse_request_send+0x12/0x20
[ 1115.369880] [<ffffffff812b9446>] fuse_statfs+0xc6/0x140
[ 1115.369886] [<ffffffff811ef251>] statfs_by_dentry+0xa1/0x140
[ 1115.369890] [<ffffffff811ef30b>] vfs_statfs+0x1b/0xb0
[ 1115.369894] [<ffffffff811ef3e6>] user_statfs+0x46/0x80
[ 1115.369898] [<ffffffff811ef435>] SYSC_statfs+0x15/0x30
[ 1115.369902] [<ffffffff811ef56e>] SyS_statfs+0xe/0x10
[ 1115.369906] [<ffffffff81731fbd>] system_call_fastpath+0x1a/0x1f
[ 1115.369909]
[ 1115.369910] Restarting tasks ... done.
Placing a script under /etc/pm/sleep.d to stop and restart autofs on
suspend/resume will resolve the issue.
** Affects: autofs (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "99_autofs"
https://bugs.launchpad.net/bugs/1438375/+attachment/4361288/+files/99_autofs
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https://bugs.launchpad.net/bugs/1438375
Title:
autofs prevents machine from suspending
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