[squid-users] Error starting 3.5.16 on FreeBSD-8.4

[Odhiambo Washington]

On 7 April 2016 at 19:35, Alex Rousskov <rousskov at measurement-factory.com>
wrote:

> On 04/07/2016 08:21 AM, Odhiambo Washington wrote:
>
> > On 7 April 2016 at 17:16, Amos Jeffries wrote:
> >
> >     On 7/04/2016 3:16 a.m., Odhiambo Washington wrote:
> >     > I am getting the following error in cache.log:
> >     >
> >     > Squid Cache (Version 3.5.16): Terminated abnormally.
> >     > FATAL: Ipc::Mem::Segment::create failed to
> >     > shm_open(/opt/squid-3.5/var/run/squid/cf__metadata.shm): (17) File
> exists
> >     >
> >     > However, that file doesn't exist.
>
> >     This can happen if you have a startup script the runs 'squid -z' or
> >     similar just prior to starting the main proxy, and not waiting
> >     sufficiently long for the -z run to finish.
>
>
> > I am gonna check this out again tonight although I doubt if that is the
> > cause.
> >
> > I run squid using daemontools, invoked as:
> >
> > exec setuidgid root /opt/squid-3.5/sbin/squid -f
> > /opt/squid-3.5/etc/squid.conf -N
> >
> > /opt/squid-3.5/var/run/squid/ is actually empty when I get this error.
>
>
> I see two possibilities:
>
> 1. The file was there at the time the error was triggered but was not
> there at the time you checked the directory. This would mean that
> something is starting a second Squid while the first Squid has not
> removed the shared memory segment file (yet). Amos mentioned one such
> common scenario (not waiting for background squid-z) but there are
> others, possibly including handling of Squid crashes. Do you see any
> other errors, assertions, or FATAL messages in your cache.log?
>
> 2. Squid code that is trying to open the shared segment is broken or,
> more likely, not compatible with your FreeBSD environment. For example,
> it tries to exclusively create a shared segment using the wrong name.
>
> If you can reproduce this, I recommend starting Squid via strace (or
> equivalent) to see the system calls that Squid is making when calling
> shm_open() and the exact call parameters. This can confirm or eliminate
> #2 as the suspect.
>
>
> HTH,
>
> Alex.
>

All I get from running strace -ff -vvv -o /tmp/squid-strace.txt
/opt/squid-3.5/sbin/squid -f /opt/squid-3.5/etc/squid.conf:
..
pread: Device busy
pread: Device busy
pread: Device busy
pread: Device busy
pread: Device busy
pread: Device busy
pread: Device busy
pread: Device busy
pread: Device busy
pread: Device busy
pread: Device busy
pread: Device busy
PIOCRUN: Input/output error
trouble opening proc file



-- 
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223
"Oh, the cruft."
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