On Fri, May 17, 2013 at 10:13:46AM +0200, Denys Vlasenko wrote: > On 05/13/2013 12:30 PM, Daniel P. Berrange wrote: > > From: "Daniel P. Berrange" <[email protected]> > > > > Even with the -q flag specified, tracing output is still mixed > > with messages about signals and process exit status, which is > > often irrelevant. Allow the -q flag to be repeated to force > > the suppression of signals / exit status info too. > > I would say that this is a bit arbitrary to think > that signals are "not relevant". In many cases, > they are! > > The suppression done by -q was suppressing messages about > what _strace_ does, those messages had nothing to do with > _what happens to the traced process_. > > Your new addition suppressed signal delivery log messages, > and that is something which _does happen to the process_ > being traced. > > Also, your addition is unnecessary because "-e signal=!all" > does the same thing.
What about exit status info? The only way to suppress this kind of messages before the patch was -c option. -- ldv
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