lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <20110421213724.GD24898@home.goodmis.org>
Date:	Thu, 21 Apr 2011 17:37:24 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Jan Kiszka <jan.kiszka@....de>
Cc:	David Ahern <dsahern@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	KVM mailing list <kvm@...r.kernel.org>
Subject: Re: trace-cmd errors on kvm events

On Fri, Apr 08, 2011 at 11:07:23PM +0200, Jan Kiszka wrote:
> On 2011-04-08 20:53, David Ahern wrote:
> > 2.6.38.2 kernel with trace-cmd git pulled this morning:
> > 
> > trace-cmd record -e kvm
> > 
> > trace-cmd report 2>&1 | less
> > 
> > trace-cmd: No such file or directory
> 
> Does this error come from trace-cmd failing to find its kvm plugin?
> Check what strace -e open says.
> 

I need to spend some time and fix it. That "No such file or directory"
is from the way trace-cmd does error handling. It checks if errno is set
and if so, it prints out perror(). What usually happens is I do a stat()
on a file which sets errno, and forget about it. Then if trace-cmd finds
some internal error, it calls the warning() message, which then prints
out the stale errno.

-- Steve


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ