diff options
| author | Roland McGrath <roland@redhat.com> | 2005-03-07 18:18:29 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-03-07 18:18:29 -0800 |
| commit | bb5b29911b8c7ad7041c4e1a15b0e9b19c7f97da (patch) | |
| tree | 1fa500a6e212764435f2c2ba7f2807636928d6a1 /include | |
| parent | a36e7143a21007aee0dac83952ca02a64e5fd5a2 (diff) | |
[PATCH] set RLIMIT_SIGPENDING limit based on RLIMIT_NPROC
While looking into the issues Jeremy had with the RLIMIT_SIGPENDING limit,
it occurred to me that the normal setting of this limit is bizarrely low.
The initial hard limit setting (MAX_SIGPENDING) was taken from the old
max_queued_signals parameter, which was for the entire system in aggregate.
But even as a per-user limit, the 1024 value is incongruously low for this.
On my machine, RLIMIT_NPROC allows me 8192 processes, but only 1024 queued
signals, i.e. fewer even than one pending signal in each process. (To me,
this really puts in doubt the sensibility of using a per-user limit for
this rather than a per-process one, i.e. counted in sighand_struct or
signal_struct, which could have a much smaller reasonable value. I don't
recall the rationale for making this new limit per-user in the first
place.)
This patch sets the default RLIMIT_SIGPENDING limit at boot time, using the
calculation that decides the default RLIMIT_NPROC limit. This uses the
same value for those two limits, which I think is still pretty conservative
on the RLIMIT_SIGPENDING value.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/resource.h | 2 | ||||
| -rw-r--r-- | include/linux/signal.h | 2 |
2 files changed, 1 insertions, 3 deletions
diff --git a/include/asm-generic/resource.h b/include/asm-generic/resource.h index c0c910498273..b1fcda9eac23 100644 --- a/include/asm-generic/resource.h +++ b/include/asm-generic/resource.h @@ -79,7 +79,7 @@ [RLIMIT_MEMLOCK] = { MLOCK_LIMIT, MLOCK_LIMIT }, \ [RLIMIT_AS] = { RLIM_INFINITY, RLIM_INFINITY }, \ [RLIMIT_LOCKS] = { RLIM_INFINITY, RLIM_INFINITY }, \ - [RLIMIT_SIGPENDING] = { MAX_SIGPENDING, MAX_SIGPENDING }, \ + [RLIMIT_SIGPENDING] = { 0, 0 }, \ [RLIMIT_MSGQUEUE] = { MQ_BYTES_MAX, MQ_BYTES_MAX }, \ } diff --git a/include/linux/signal.h b/include/linux/signal.h index 3d8bf1afdb51..99c97ad026c8 100644 --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -8,8 +8,6 @@ #ifdef __KERNEL__ -#define MAX_SIGPENDING 1024 - /* * Real Time signals may be queued. */ |