Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-27 Thread Alexey Dobriyan
On Wed, May 27, 2015 at 1:56 PM, Jan Stancek wrote: > On Wed, May 27, 2015 at 01:27:13AM -0400, Jarod Wilson wrote: >> On May 26, 2015, at 5:24 PM, Alexey Dobriyan wrote: >> >> Should have tested on more than just x86, it appears. We've started >> >> hammering on this internally across all

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-27 Thread Alexey Dobriyan
On Wed, May 27, 2015 at 1:56 PM, Jan Stancek wrote: > On Wed, May 27, 2015 at 01:27:13AM -0400, Jarod Wilson wrote: >> On May 26, 2015, at 5:24 PM, Alexey Dobriyan wrote: >> >> Should have tested on more than just x86, it appears. We've started >> >> hammering on this internally across all

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-27 Thread Jan Stancek
On Wed, May 27, 2015 at 01:27:13AM -0400, Jarod Wilson wrote: > On May 26, 2015, at 5:24 PM, Alexey Dobriyan wrote: > >> Should have tested on more than just x86, it appears. We've started > >> hammering on this internally across all arches, and its exploded > >> multiple times on ppc64 now: >

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-27 Thread Alexey Dobriyan
On Wed, May 27, 2015 at 8:27 AM, Jarod Wilson wrote: > On May 26, 2015, at 5:24 PM, Alexey Dobriyan wrote: >> >>> On Tue, May 26, 2015 at 04:42:36PM -0400, Jarod Wilson wrote: On 5/8/2015 8:28 AM, Alexey Dobriyan wrote: /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-27 Thread Alexey Dobriyan
On Wed, May 27, 2015 at 8:27 AM, Jarod Wilson jwil...@redhat.com wrote: On May 26, 2015, at 5:24 PM, Alexey Dobriyan adobri...@gmail.com wrote: On Tue, May 26, 2015 at 04:42:36PM -0400, Jarod Wilson wrote: On 5/8/2015 8:28 AM, Alexey Dobriyan wrote: /proc/$PID/cmdline truncates output at

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-27 Thread Jan Stancek
On Wed, May 27, 2015 at 01:27:13AM -0400, Jarod Wilson wrote: On May 26, 2015, at 5:24 PM, Alexey Dobriyan adobri...@gmail.com wrote: Should have tested on more than just x86, it appears. We've started hammering on this internally across all arches, and its exploded multiple times on

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-27 Thread Alexey Dobriyan
On Wed, May 27, 2015 at 1:56 PM, Jan Stancek jstan...@redhat.com wrote: On Wed, May 27, 2015 at 01:27:13AM -0400, Jarod Wilson wrote: On May 26, 2015, at 5:24 PM, Alexey Dobriyan adobri...@gmail.com wrote: Should have tested on more than just x86, it appears. We've started hammering on this

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-27 Thread Alexey Dobriyan
On Wed, May 27, 2015 at 1:56 PM, Jan Stancek jstan...@redhat.com wrote: On Wed, May 27, 2015 at 01:27:13AM -0400, Jarod Wilson wrote: On May 26, 2015, at 5:24 PM, Alexey Dobriyan adobri...@gmail.com wrote: Should have tested on more than just x86, it appears. We've started hammering on this

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-26 Thread Jarod Wilson
On May 26, 2015, at 5:24 PM, Alexey Dobriyan wrote: > >> On Tue, May 26, 2015 at 04:42:36PM -0400, Jarod Wilson wrote: >>> On 5/8/2015 8:28 AM, Alexey Dobriyan wrote: >>> /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with >>> >>>$ cat /proc/self/cmdline $(seq 1037)

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-26 Thread Alexey Dobriyan
On Tue, May 26, 2015 at 04:42:36PM -0400, Jarod Wilson wrote: > On 5/8/2015 8:28 AM, Alexey Dobriyan wrote: > > /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with > > > > $ cat /proc/self/cmdline $(seq 1037) 2>/dev/null > > > > However, command line size was never limited

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-26 Thread Jarod Wilson
On 5/8/2015 8:28 AM, Alexey Dobriyan wrote: /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with $ cat /proc/self/cmdline $(seq 1037) 2>/dev/null However, command line size was never limited to PAGE_SIZE but to 128 KB and relatively recently limitation was removed

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-26 Thread Jarod Wilson
On May 26, 2015, at 5:24 PM, Alexey Dobriyan adobri...@gmail.com wrote: On Tue, May 26, 2015 at 04:42:36PM -0400, Jarod Wilson wrote: On 5/8/2015 8:28 AM, Alexey Dobriyan wrote: /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with $ cat /proc/self/cmdline $(seq 1037)

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-26 Thread Jarod Wilson
On 5/8/2015 8:28 AM, Alexey Dobriyan wrote: /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with $ cat /proc/self/cmdline $(seq 1037) 2/dev/null However, command line size was never limited to PAGE_SIZE but to 128 KB and relatively recently limitation was removed

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-26 Thread Alexey Dobriyan
On Tue, May 26, 2015 at 04:42:36PM -0400, Jarod Wilson wrote: On 5/8/2015 8:28 AM, Alexey Dobriyan wrote: /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with $ cat /proc/self/cmdline $(seq 1037) 2/dev/null However, command line size was never limited to

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-10 Thread Alexey Dobriyan
On Fri, May 08, 2015 at 02:32:38PM -0700, Andrew Morton wrote: > On Fri, 8 May 2015 15:28:05 +0300 Alexey Dobriyan wrote: > > > /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with > > I still hate your patch! > > > Also, dude. i386: Someone sent i386 removal patch a

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-10 Thread Alexey Dobriyan
On Fri, May 08, 2015 at 02:32:38PM -0700, Andrew Morton wrote: On Fri, 8 May 2015 15:28:05 +0300 Alexey Dobriyan adobri...@gmail.com wrote: /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with I still hate your patch! Also, dude. i386: Someone sent i386 removal

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-08 Thread Andrew Morton
On Fri, 8 May 2015 15:28:05 +0300 Alexey Dobriyan wrote: > /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with > > $ cat /proc/self/cmdline $(seq 1037) 2>/dev/null > > However, command line size was never limited to PAGE_SIZE but to 128 KB and > relatively recently

[PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-08 Thread Alexey Dobriyan
/proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with $ cat /proc/self/cmdline $(seq 1037) 2>/dev/null However, command line size was never limited to PAGE_SIZE but to 128 KB and relatively recently limitation was removed altogether. People noticed and ask questions:

Re: [PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-08 Thread Andrew Morton
On Fri, 8 May 2015 15:28:05 +0300 Alexey Dobriyan adobri...@gmail.com wrote: /proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with $ cat /proc/self/cmdline $(seq 1037) 2/dev/null However, command line size was never limited to PAGE_SIZE but to 128 KB and

[PATCH try #4] proc: fix PAGE_SIZE limit of /proc/$PID/cmdline

2015-05-08 Thread Alexey Dobriyan
/proc/$PID/cmdline truncates output at PAGE_SIZE. It is easy to see with $ cat /proc/self/cmdline $(seq 1037) 2/dev/null However, command line size was never limited to PAGE_SIZE but to 128 KB and relatively recently limitation was removed altogether. People noticed and ask questions: