[libvirt] syntax-check Argument list too long problems
Hi,
Not so long ago I've started encountering issues with syntax-check, for
example:
trailing_blank
/bin/sh: grep: Argument list too long
When I'm running it with SHELL='sh -x' I can see that it's indeed trying
to run grep with really long list of files, e.g.:
+ grep -nE '\error *\([^]*[^]*[a-z]{3}' .ctags .dir-locals.el ...
and many many other files in the list.
I see this problem on FreeBSD, but not on Linux, I guess that's because
ARG_MAX is much lower on FreeBSD:
freebsd$ getconf ARG_MAX
262144
linux$ getconf ARG_MAX
2097152
It looks like it's not possible to change ARG_MAX value on FreeBSD. Do I
get it right that it's something that I need to report to gnulib?
Roman Bogorodskiy
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Re: [libvirt] syntax-check Argument list too long problems
[adding bug-gnulib]
On 08/20/2015 08:30 AM, Roman Bogorodskiy wrote:
Hi,
Not so long ago I've started encountering issues with syntax-check, for
example:
trailing_blank
/bin/sh: grep: Argument list too long
When I'm running it with SHELL='sh -x' I can see that it's indeed trying
to run grep with really long list of files, e.g.:
+ grep -nE '\error *\([^]*[^]*[a-z]{3}' .ctags .dir-locals.el ...
and many many other files in the list.
I see this problem on FreeBSD, but not on Linux, I guess that's because
ARG_MAX is much lower on FreeBSD:
freebsd$ getconf ARG_MAX
262144
linux$ getconf ARG_MAX
2097152
It looks like it's not possible to change ARG_MAX value on FreeBSD. Do I
get it right that it's something that I need to report to gnulib?
Reported. I'm not sure what it would take to work xargs into the mix to
allow breaking up the list of files to be checked into manageable
chunks. But hopefully all of the syntax checks still work in piecewise
fashion.
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Eric Blake eblake redhat com+1-919-301-3266
Libvirt virtualization library http://libvirt.org
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Re: [libvirt] syntax-check Argument list too long problems
On Thu, Aug 20, 2015 at 06:30:12PM +0300, Roman Bogorodskiy wrote:
Hi,
Not so long ago I've started encountering issues with syntax-check, for
example:
trailing_blank
/bin/sh: grep: Argument list too long
When I'm running it with SHELL='sh -x' I can see that it's indeed trying
to run grep with really long list of files, e.g.:
+ grep -nE '\error *\([^]*[^]*[a-z]{3}' .ctags .dir-locals.el ...
and many many other files in the list.
I see this problem on FreeBSD, but not on Linux, I guess that's because
ARG_MAX is much lower on FreeBSD:
freebsd$ getconf ARG_MAX
262144
linux$ getconf ARG_MAX
2097152
It looks like it's not possible to change ARG_MAX value on FreeBSD. Do I
get it right that it's something that I need to report to gnulib?
Roman Bogorodskiy
It depends. We have some syntax-check rules that need fixing, but the
one you reported seems like it's gnulib's own one. So I'm guessing
gnulib should use xargs as well as us for feed the list not to grep
only, but anywhere.
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