Re: pipe hang in current/amd64

[Gary Duzan <gary%duzan.org@localhost>]

In Message <20120707042841.60DEE11535F%xen1.duzan.org@localhost>,
   Gary Duzan <gary%duzan.org@localhost>wrote:

=>   Today I did a -current upgrade on my amd64 box, then started a
=>rolling replace of my packages. It made it as far as:
=>
=>===> Overriding tools for oxygen-icons-4.8.4
=>===> Extracting for oxygen-icons-4.8.4
=>
=>and then stopped. Here are the leaf processes in the tree:
=>
=> UID   PID  PPID   CPU PRI NI    VSZ    RSS WCHAN    STAT TTY       TIME 
COMMAND
=>   0  3119 13316  5249  84  0  17420   1868 pipe_drn I+   ttyp4  0:03.74 
/usr/pkg/bin/gtar -xf -
=>   0  6576 13316 20160  81  0  21324   9708 pipe_wr  I+   ttyp4  0:21.50 
/usr/bin/xzcat /usr/pkgsrc/distfiles//oxygen-icons-4.8.4.tar.xz
=>
=>Neither one shows any activity from a ktruss.
=>
=>   Is this something obvious, or should I send-pr it? I'm leaving
=>the processes as they are for the moment in case we need more
=>analysis.

   For the record, I attached gdb to 6576, detached, and it continued
normally. I'll follow up if I see any similar hangs.

                                        Gary Duzan