[libvirt] [PATCH 4/7] lxc: Improve guest startup error reporting

[Cole Robinson]

On 06/02/2011 04:19 PM, Eric Blake wrote:
> On 06/02/2011 01:40 PM, Cole Robinson wrote:
>> Add a simple handshake with the lxc_controller process so we can detect
>> process startup failures. We do this by adding a new --handshake cli arg
>> to lxc_controller for passing a file descriptor. If the process fails to
>> launch, we scrape all output from the logfile and report it to the user.
>>
>> Signed-off-by: Cole Robinson <crobinso at redhat.com>
>> ---
>>  src/lxc/lxc_container.c  |    2 +-
>>  src/lxc/lxc_container.h  |    1 +
>>  src/lxc/lxc_controller.c |   33 +++++++++++++-
>>  src/lxc/lxc_driver.c     |  107 +++++++++++++++++++++++++++++++++++++++++++++-
>>  4 files changed, 137 insertions(+), 6 deletions(-)
>>
> 
>> @@ -1489,6 +1572,12 @@ static int lxcVmStart(virConnectPtr conn,
>>      if (virCommandRun(cmd, NULL) < 0)
>>          goto cleanup;
>>  
>> +    if (VIR_CLOSE(handshakefds[1]) < 0) {
>> +        virReportSystemError(errno, "%s", _("could not close handshake fd"));
>> +        goto cleanup;
>> +    }
>> +    handshakefds[1] = -1;
> 
> This line is redundant; the VIR_CLOSE() above already set this to -1.
> 
> ACK with that nit fixed, post-release.
> 

Thanks, pushed series with this cleanup and the spelling fix in patch 3.

- Cole