VMware guest system hang due to frozen filesystems, vmtoolsd blocked opening a fuse filesystem mount point
Issue
- VMware VM / guest system hang with frozen filesystems, vmtoolsd running and has the following backtrace
crash> foreach vmtoolsd bt
PID: 1068 TASK: ffff8802388e2080 CPU: 0 COMMAND: "vmtoolsd"
#0 [ffff880237f0da38] schedule at ffffffff81529990
#1 [ffff880237f0db10] wait_answer_interruptible at ffffffffa01ba211 [fuse]
#2 [ffff880237f0db80] __fuse_request_send at ffffffffa01ba42b [fuse]
#3 [ffff880237f0dbf0] fuse_request_send at ffffffffa01ba512 [fuse]
#4 [ffff880237f0dc00] fuse_do_getattr at ffffffffa01bdccc [fuse]
#5 [ffff880237f0dce0] fuse_update_attributes at ffffffffa01bdefd [fuse]
#6 [ffff880237f0dd10] fuse_permission at ffffffffa01bf038 [fuse]
#7 [ffff880237f0dd60] inode_permission at ffffffff8119bd4e
#8 [ffff880237f0dd80] may_open at ffffffff8119bf80
#9 [ffff880237f0ddb0] do_filp_open at ffffffff811a1047
#10 [ffff880237f0df20] do_sys_open at ffffffff8118ae17
#11 [ffff880237f0df70] sys_open at ffffffff8118af20
#12 [ffff880237f0df80] system_call_fastpath at ffffffff8100b072
Environment
- Red Hat Enterprise Linux
- 2.6.32-504.8.1.el6
- VMware snapshots / backups
- fuse filesystem (gluster is one example)
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