From: Sam Ravnborg <sam@ravnborg.org>
To: Babu Moger <babu.moger@oracle.com>
Cc: peterz@infradead.org, mingo@redhat.com,
akpm@linux-foundation.org, keescook@chromium.org,
dan.j.williams@intel.com, aryabinin@virtuozzo.com, tj@kernel.org,
linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org
Subject: Re: [PATCH v3 1/2] config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL for sparc
Date: Wed, 28 Sep 2016 20:51:40 +0000 [thread overview]
Message-ID: <20160928205140.GA1750@ravnborg.org> (raw)
In-Reply-To: <1475004808-91920-2-git-send-email-babu.moger@oracle.com>
On Tue, Sep 27, 2016 at 12:33:27PM -0700, Babu Moger wrote:
> This new config parameter limits the space used for "Lock debugging:
> prove locking correctness" by about 4MB. The current sparc systems have
> the limitation of 32MB size for kernel size including .text, .data and
> .bss sections. With PROVE_LOCKING feature, the kernel size could grow
> beyond this limit and causing system boot-up issues. With this option,
> kernel limits the size of the entries of lock_chains, stack_trace etc.,
> so that kernel fits in required size limit. This is not visible to user
> and only used for sparc.
>
> Signed-off-by: Babu Moger <babu.moger@oracle.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
WARNING: multiple messages have this Message-ID (diff)
From: Sam Ravnborg <sam@ravnborg.org>
To: Babu Moger <babu.moger@oracle.com>
Cc: peterz@infradead.org, mingo@redhat.com,
akpm@linux-foundation.org, keescook@chromium.org,
dan.j.williams@intel.com, aryabinin@virtuozzo.com, tj@kernel.org,
linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org
Subject: Re: [PATCH v3 1/2] config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL for sparc
Date: Wed, 28 Sep 2016 22:51:40 +0200 [thread overview]
Message-ID: <20160928205140.GA1750@ravnborg.org> (raw)
In-Reply-To: <1475004808-91920-2-git-send-email-babu.moger@oracle.com>
On Tue, Sep 27, 2016 at 12:33:27PM -0700, Babu Moger wrote:
> This new config parameter limits the space used for "Lock debugging:
> prove locking correctness" by about 4MB. The current sparc systems have
> the limitation of 32MB size for kernel size including .text, .data and
> .bss sections. With PROVE_LOCKING feature, the kernel size could grow
> beyond this limit and causing system boot-up issues. With this option,
> kernel limits the size of the entries of lock_chains, stack_trace etc.,
> so that kernel fits in required size limit. This is not visible to user
> and only used for sparc.
>
> Signed-off-by: Babu Moger <babu.moger@oracle.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
next prev parent reply other threads:[~2016-09-28 20:51 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-27 19:33 [PATCH v3 0/2] Ajust lockdep static allocations for sparc Babu Moger
2016-09-27 19:33 ` Babu Moger
2016-09-27 19:33 ` [PATCH v3 1/2] config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL " Babu Moger
2016-09-27 19:33 ` Babu Moger
2016-09-28 8:39 ` Peter Zijlstra
2016-09-28 8:39 ` Peter Zijlstra
2016-09-29 13:53 ` Babu Moger
2016-09-29 13:53 ` Babu Moger
2016-09-30 5:19 ` David Miller
2016-09-30 5:19 ` David Miller
2016-10-05 22:56 ` Babu Moger
2016-10-05 22:56 ` Babu Moger
2016-10-06 4:27 ` Sam Ravnborg
2016-10-06 4:27 ` Sam Ravnborg
2016-09-28 20:51 ` Sam Ravnborg [this message]
2016-09-28 20:51 ` Sam Ravnborg
2016-09-27 19:33 ` [PATCH v3 2/2] lockdep: Limit static allocations if PROVE_LOCKING_SMALL is defined Babu Moger
2016-09-27 19:33 ` Babu Moger
2016-09-28 20:51 ` Sam Ravnborg
2016-09-28 20:51 ` Sam Ravnborg
2016-09-29 13:55 ` Babu Moger
2016-09-29 13:55 ` Babu Moger
2016-11-18 19:34 ` [PATCH v3 0/2] Ajust lockdep static allocations for sparc David Miller
2016-11-18 19:34 ` David Miller
2016-11-19 11:53 ` Peter Zijlstra
2016-11-19 11:53 ` Peter Zijlstra
2016-11-21 7:17 ` Ingo Molnar
2016-11-21 7:17 ` Ingo Molnar
2016-11-29 11:14 ` Geert Uytterhoeven
2016-11-29 11:14 ` Geert Uytterhoeven
2016-11-29 11:41 ` Peter Zijlstra
2016-11-29 11:41 ` Peter Zijlstra
2016-11-29 11:52 ` Geert Uytterhoeven
2016-11-29 11:52 ` Geert Uytterhoeven
2016-11-29 12:29 ` Peter Zijlstra
2016-11-29 12:29 ` Peter Zijlstra
2016-11-29 12:35 ` Peter Zijlstra
2016-11-29 12:35 ` Peter Zijlstra
2016-11-29 13:26 ` Geert Uytterhoeven
2016-11-29 13:26 ` Geert Uytterhoeven
2016-11-29 13:31 ` Peter Zijlstra
2016-11-29 13:31 ` Peter Zijlstra
2016-11-29 13:39 ` Geert Uytterhoeven
2016-11-29 13:39 ` Geert Uytterhoeven
2016-11-29 13:50 ` Peter Zijlstra
2016-11-29 13:50 ` Peter Zijlstra
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