Hi,

thanks for looking into that. I tried to contact you today to ask for a status
update about this.

I have not been able to get in touch with any of the other people that had proxy
woes so I guess we are on our own. On one hand this makes me want to give this a
very low priority. On the other hand I think we should target Core Update 103
with this. The update should actually not be that severe.

On Fri, 2016-04-29 at 18:14 +0200, Matthias Fischer wrote:
> Hi,
> 
> As always: "I'd like to have a problem" - perhaps somone else here has
> some clues or better ideas:
> 
> I had not much luck during my tests with 'squid 3.5.17'.
> 
> In the last week I tested several compilations with the following
> modifications compared with '3.4.14'. Configuration included 'squid
> 3.5.17', squidguard 1.5-beta', 'squidclamav 5.11' and 'privoxy 3.0.24'.
> 
> I changed and tested with various configure-options:
> 
> 'squid':
> ipv6 disabled / enabled
> enable-async-io=8 / 16 / 32

I had a look what the IPv6 switch actually changes. And that is not really much.
Essentially nothing. It just probes if the system supports IPv6 and if not it
disables it internally.

http://git.ipfire.org/?p=thirdparty%2Fsquid.git&a=search&h=refs%2Fheads%2Ftrunk&st=grep&s=USE_IPV6

I think we can as well enable this.

> 
> 'privoxy':
> ipv6-support enabled / disabled
> 
> After installing each new 'squid' version I deleted 'swap.state' and
> the whole cache dir structure - that means, everything below
> '/var/log/cache/' - and let 'squid' rebuild everything from scratch with
> 'squid -z'.
> No problems with that.
> 
> At first, 'squid' always seemed to run fine, 'squid.conf' and 'squid -k
> parse' showed no problems. Ok, without 'ipv6' I got a warning during
> start, but this seemed to have no further effect.
> 
> But after a few hours - sometimes it took a day - errors came up in the
> logs.
> These didn't noticably showed up during browsing. I had to search for
> them in the logs.
> 
> One error that ALWAYS occured - 'squid' tried to load a file from cache
> that wasn't there. In this case, 'squid' logged 'No such file or directory'.
> Furthermore 'swapin MD5 mismatches' came up. It looked like 'swap.state'
> had been corrupted(?).

I guess it might be a good idea to wipe the cache when changing anything here.
Although none of these issues should happen and I have no idea what you are
trying to tell me here ;) Is this a big issue or just updating woes?

Should we merge 3.5.x for next and then see what this gets us?

> 2016/04/25 04:41:09 kid1| WARNING: 1 swapin MD5 mismatches
> 2016/04/25 04:41:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 04:41:09 kid1| 	/var/log/cache/00/00/00000008
> 2016/04/25 04:41:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 04:41:09 kid1| 	/var/log/cache/00/00/00000009
> 2016/04/25 04:41:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 04:41:09 kid1| 	/var/log/cache/00/00/0000000A
> 2016/04/25 04:41:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 04:41:09 kid1| 	/var/log/cache/00/00/0000000B
> 2016/04/25 04:41:10 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 04:41:10 kid1| 	/var/log/cache/00/00/0000000C
> 2016/04/25 04:41:10 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 04:41:10 kid1| 	/var/log/cache/00/00/0000000D
> 2016/04/25 04:41:10 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 04:41:10 kid1| 	/var/log/cache/00/00/0000000E
> ...
> 
> ...
> 2016/04/25 05:17:21 kid1| Starting new redirector helpers...
> 2016/04/25 05:17:21 kid1| helperOpenServers: Starting 1/30
> 'redirect_wrapper' processes
> 2016/04/25 05:17:21 kid1| Starting new redirector helpers...
> 2016/04/25 05:17:21 kid1| helperOpenServers: Starting 1/30
> 'redirect_wrapper' processes
> 2016/04/25 05:17:45 kid1| WARNING: 1 swapin MD5 mismatches
> 2016/04/25 14:05:08 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:08 kid1| 	/var/log/cache/00/00/00000073
> 2016/04/25 14:05:08 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:08 kid1| 	/var/log/cache/00/00/00000075
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/00000008
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/00000009
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/0000000A
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/0000000B
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/0000000C
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/0000000D
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/0000000E
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/0000000F
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/00000010
> 2016/04/25 14:05:09 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:09 kid1| 	/var/log/cache/00/00/00000011
> 2016/04/25 14:05:10 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:10 kid1| 	/var/log/cache/00/00/00000012
> 2016/04/25 14:05:10 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:10 kid1| 	/var/log/cache/00/00/00000013
> 2016/04/25 14:05:10 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:10 kid1| 	/var/log/cache/00/00/00000085
> 2016/04/25 14:05:10 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:10 kid1| 	/var/log/cache/00/00/00000087
> 2016/04/25 14:05:10 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:10 kid1| 	/var/log/cache/00/07/00000766
> 2016/04/25 14:05:10 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:10 kid1| 	/var/log/cache/00/07/00000767
> 2016/04/25 14:05:11 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:11 kid1| 	/var/log/cache/00/00/00000014
> 2016/04/25 14:05:11 kid1| DiskThreadsDiskFile::openDone: (2) No such
> file or directory
> 2016/04/25 14:05:11 kid1| 	/var/log/cache/00/00/00000015
> 2016/04/25 14:10:16 kid1| Starting new redirector helpers...
> ...
> 
> With the last '3.5.17', 'squid' reported a totally wrong
> 'store_swap_size' plus some weird queue errors:
> 
> ...
> 2016/04/26 01:27:44 kid1| Beginning Validation Procedure
> 2016/04/26 01:27:44 kid1|   Completed Validation Procedure
> 2016/04/26 01:27:44 kid1|   Validated 9126 Entries
> 2016/04/26 01:27:44 kid1|   store_swap_size = 2226220.00 KB <--- Wrong
> size! WHY!? System was nearly IDLE!
> 2016/04/26 01:27:44 kid1| storeLateRelease: released 0 objects
> 2016/04/26 01:27:45 kid1| squidaio_queue_request: Async request queue
> growing uncontrollably!
> 2016/04/26 01:27:45 kid1| squidaio_queue_request: Syncing pending I/O
> operations.. (blocking)
> 2016/04/26 01:27:45 kid1| squidaio_queue_request: Synced
> 2016/04/26 01:27:45 kid1| squidaio_queue_request: Async request queue
> growing uncontrollably!
> 2016/04/26 01:27:45 kid1| squidaio_queue_request: Syncing pending I/O
> operations.. (blocking)
> 2016/04/26 01:27:45 kid1| squidaio_queue_request: Synced
> ...
> 
> Even during restart, 'cache_log' reports a wrong 'store_swap_size':
> 
> ...
> 2016/04/29 17:16:33 kid1| Beginning Validation Procedure
> 2016/04/29 17:16:33 kid1| Completed Validation Procedure
> 2016/04/29 17:16:33 kid1| Validated 3541 Entries
> 2016/04/29 17:16:33 kid1| store_swap_size = 389420.00 KB <----!
> ...
> 
> But in reality its only 117351 KB! 'squid' was ALWAYS started with
> ...
> cache_mem 32 MB
> cache_dir aufs /var/log/cache 128 16 256
> ...
> 
> So what!?
> 
> At this point, I'm giving up (again), to think things over and to ask if
> anyone got an idea.
> 
> During building everythings OK, but it looks like I can't get that
> version to work without errors.
> 
> Test versions are available here:
> http://people.ipfire.org/~mfischer/squid/3.5.17
> 
> The same configuration is running right now with '3.4.14' (ipv6 disabled
> / enable-async-io=16).
> No errors in the logs, reported 'store_swap_size' is OK, no problems.
> 
> Any ideas?
> 
> Best,
> Matthias

-Michael