[PATCH v2 0/5] qemu_passt: Fix issues with PID file

[Michal Prívozník]

On 2/16/23 17:35, Laine Stump wrote:
> On 2/16/23 8:32 AM, Michal Privoznik wrote:
>> This is a v2 of:
>>
>> https://listman.redhat.com/archives/libvir-list/2023-February/237731.html
>>
>> diff to v1:
>> - Merged patches that were ACKed in v1,
>> - Dropped 4/4 from the original series (the one that sets --foreground),
>>    and implemented a different approach
>>
>> Michal Prívozník (5):
>>    qemu_passt: Avoid double daemonizing passt
>>    qemu_passt: Report passt's error on failed start
>>    qemu_passt: Make passt report errors to stderr whenever possible
>>    qemu_passt: Deduplicate passt killing code
>>    qemu_passt: Let passt write the PID file
> 
> This is everything that was in the patch I sent last week, with the
> following additions
> 
> 1) adding NULLSTR() around the reference to errbuf in patch 2/5
> 
> 2) adding "--stderr" to the commandline in patch 3/5 (which I found to
> be unnecessary in my testing - as Stefano says everything goes to stderr
> until passt has completed its init anyway)
> 
> 3) the other bit of patch 3/5 which adds an extra message telling the
> user to look into the designated logfile for the error - this is
> unnecessary (and actually now counter-productive, as it forces you to
> look elsewhere for the error when you wouldn't have needed to) because
> of patches I've sent to passt.
> 
> 4)  patch 4/5 that is a cleanup de-duplicating code
> 
> 5) patch 5 changes additional code (that I didn't touch in my patch) to
> use virPidFileReadPath() instead of virPidFileReadPathIfLocked(), and
> virProcessKillPainfully() instead of the higher level
> virPidFileForceCleanupPath().
> 
> So it all seems fine (except the error reporting stuff), but why revert
> a patch only to push back the same changes in a deconstructed fashion
> plus some fixups, rather than just posting a followup or two?

Yeah, I realized this too and I'm sorry. My original intention was to
fix this in a completely different way (as my last patch from v1
demonstrates) and that was incompatible with yours.

Michal