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Groups > linux.kernel > #1605886
| From | Steven Rostedt <rostedt@goodmis.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] trace-cmd: Fix segmentation fault in trace-snapshot |
| Date | 2017-03-21 19:40 +0100 |
| Message-ID | <tnwRj-779-15@gated-at.bofh.it> (permalink) |
| References | <tnuFP-5IV-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue, 21 Mar 2017 17:11:53 +0100
John Kacur <jkacur@redhat.com> wrote:
> To reproduce the problem:
>
> plugin 'wakeup'
> trace-cmd: Device or resource busy
> Segmentation fault (core dumped)
>
> When the user triggers a condition such as EBUSY the program should
> die gracefully. The problem here is simply caused by an extra
> conversion specifier in "die" in the write_file function
Thanks John!
I'm currently traveling but I'll apply this when I get a chance.
-- Steve
>
> Signed-off-by: John Kacur <jkacur@redhat.com>
> ---
> trace-snapshot.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/trace-snapshot.c b/trace-snapshot.c
> index 9d3608c49563..771b065ccfa4 100644
> --- a/trace-snapshot.c
> +++ b/trace-snapshot.c
> @@ -42,7 +42,8 @@ static void write_file(const char *name, char *val)
>
> n = write(fd, val, strlen(val));
> if (n < 0)
> - die("failed to write '%d' to %s\n", path);
> + die("failed to write to %s\n", path);
> +
> tracecmd_put_tracing_file(path);
> close(fd);
> }
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[PATCH] trace-cmd: Fix segmentation fault in trace-snapshot John Kacur <jkacur@redhat.com> - 2017-03-21 17:20 +0100 Re: [PATCH] trace-cmd: Fix segmentation fault in trace-snapshot Steven Rostedt <rostedt@goodmis.org> - 2017-03-21 19:40 +0100
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