Yes that's serious because some commands are bigger than 3.5mb, is your
machine embedded perhaps? Or have you definitely given the virtual machine
enough space and ram to work with?

Thanks
Zeb

On Tue, 21 Nov 2023, 18:30 Bruno Haible, <br...@clisp.org> wrote:

> Package: general
> Severity: important
> X-Debbugs-Cc: br...@clisp.org
>
> I'm using Debian GNU/Linux on hppa, in a virtual machine emulated by QEMU
> 8.0.2.
> $ uname -srm
> Linux 6.3.0-2-parisc parisc
>
> In this machine, for the invocation of any program, the length of the
> command
> line (= all arguments together) is limited to less than 3544 bytes.
>
> How to reproduce:
>
> In bash:
> $ /bin/echo `seq 913`
> -bash: /bin/echo: Argument list too long
>
> In dash:
> $ /bin/echo `seq 913`
> dash: 1: /bin/echo: Argument list too long
>
> I also see this while doing "make check" of packages that have more than
> 1000
> tests. So, it appears to be a general problem.
>
> The values returned by getconf don't match the reality:
> $ getconf ARG_MAX
> 2097152
> $ getconf _POSIX_ARG_MAX
> 2097152
>
> I have looked at the values of several files in /sys/kernel and
> /proc/sys/kernel, without finding the cause.
>
> For comparison, in a different VM, running "Linux 6.3.7-t2 parisc" (from
> the
> T2-SDE distribution), I don't observe this bug. Both machines have the same
> amount of "physical" RAM: 256 MiB.
>
> The ulimit values don't appear to be the cause, because they are similar in
> the two machines:
> In the Debian VM (with the bug):
> $ ulimit -a
> real-time non-blocking time  (microseconds, -R) unlimited
> core file size              (blocks, -c) 0
> data seg size               (kbytes, -d) unlimited
> scheduling priority                 (-e) 0
> file size                   (blocks, -f) unlimited
> pending signals                     (-i) 849
> max locked memory           (kbytes, -l) 65536
> max memory size             (kbytes, -m) unlimited
> open files                          (-n) 1024
> pipe size                (512 bytes, -p) 8
> POSIX message queues         (bytes, -q) 819200
> real-time priority                  (-r) 0
> stack size                  (kbytes, -s) 8192
> cpu time                   (seconds, -t) unlimited
> max user processes                  (-u) 849
> virtual memory              (kbytes, -v) unlimited
> file locks                          (-x) unlimited
> In the T2-SDE machine, with no bug:
> $ ulimit -a
> real-time non-blocking time  (microseconds, -R) unlimited
> core file size              (blocks, -c) 1048575
> data seg size               (kbytes, -d) unlimited
> scheduling priority                 (-e) 0
> file size                   (blocks, -f) unlimited
> pending signals                     (-i) 909
> max locked memory           (kbytes, -l) 8192
> max memory size             (kbytes, -m) unlimited
> open files                          (-n) 1024
> pipe size                (512 bytes, -p) 8
> POSIX message queues         (bytes, -q) 819200
> real-time priority                  (-r) 0
> stack size                  (kbytes, -s) 8192
> cpu time                   (seconds, -t) unlimited
> max user processes                  (-u) 909
> virtual memory              (kbytes, -v) unlimited
> file locks                          (-x) unlimited
>
>

Reply via email to