[Bug 209421] Processes hangs in D state, suspfs or vofflock wchan under FreeBSD 10.X

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209421

--- Comment #1 from chris at cretaforce.gr ---
Same issue here. It happens randomly, for example during tar, or rsync:

procstat -kk 66610
  PID    TID COMM             TDNAME           KSTACK
66610 101290 bsdtar           -                mi_switch+0xe1 sleepq_wait+0x3a
_sleep+0x287 vnode_create_vobject+0x100 ufs_open+0x6d VOP_OPEN_APV+0xa1
vn_open_vnode+0x234 vn_open_cred+0x36a kern_openat+0x26f amd64_syscall+0x40f
Xfast_syscall+0xfb

fstat -p 66610
USER     CMD          PID   FD MOUNT      INUM MODE         SZ|DV R/W
root     bsdtar     66610 text /usr     903274 -r-xr-xr-x   58392  r
root     bsdtar     66610   wd -        290045184 d---------     512  r
root     bsdtar     66610 root /             2 drwxr-xr-x     512  r
root     bsdtar     66610    0* pipe fffff804efe05000 <-> fffff804efe05160     
0 rw
root     bsdtar     66610    1* pipe fffff8000e2d1730 <-> fffff8000e2d15d0     
0 rw
root     bsdtar     66610    2* pipe fffff804e9480448 <-> fffff804e94802e8     
0 rw
root     bsdtar     66610    3 -        290045184 d---------     512  r
root     bsdtar     66610    4 -        293018454 drwxr-xr-x  15111168  r
root     bsdtar     66610    5 -        293018454 drwxr-xr-x  15111168  r

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