Re: Processes getting stuck in "fstchg" with NetBSD-10.99.12/amd64

[Brian Buhrow <buhrow%nfbcal.org@localhost>]

	Hello.  Let me  clarify a little further from my first message.


	hello.  Follwoing up on this thread, I have more data, and questions.

	First, While I can't 100% reliably reproduce the issue, I can achieve the state fairly
reliably by closing ssh sessions, without explicitly logging out, 
into the affected machine when connected through a particular Juniper firewall on our network.  
What appears to happen is I close the session and one of my
csh processes gets stuck in specio wait, causing the root filesystem to be in suspended state.
Then, cron starts firing off jobs, each of which gets stuck in fstchg state until the process
table gets full.  
Using ddb, I was able to gather the below information.  I have more data than is shown here, but
I don't have a full crash dump.
Runing call fstrans_dump(1) I see:


[ 306390.6288439] Fstrans state by mount:
[ 306390.6288439] /                owner 0xffffa6c9fb1c1c00 state suspended

Then, 


17174 17174 3   1         0   ffffa6c9fb1c1c00                csh specio

Then, 

[ 306390.6288439] 17174.17 @0xffffa6ca2639e400 (/) shared 2 cow 0 alias 0


Questions:

I'm assuming it's bad to have the / filesystem be in suspended state?

What does the 2 represent after the word shared in the 
previous line?

	Assuming I can get another crash, what details should I gather beyond these details the
next time?

-thanks
-Brian



--- End of forwarded message from "Brian Buhrow" <buhrow%nfbcal.org@localhost>