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Linux 3.2-rc6-git2 (a4a4923919f2d43583789b1f3603f4e5600d8321)

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This commit is contained in:
Dave Jones 2011-12-20 17:22:30 -05:00
parent 0e0a3afbb1
commit 39b6e0ae91
4 changed files with 6 additions and 187 deletions
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18
kernel.spec
View File

@ -54,7 +54,7 @@ Summary: The Linux kernel
# For non-released -rc kernels, this will be appended after the rcX and
# gitX tags, so a 3 here would become part of release "0.rcX.gitX.3"
#
%global baserelease 2
%global baserelease 1
%global fedora_build %{baserelease}
# base_sublevel is the kernel version we're starting with and patching
@ -87,7 +87,7 @@ Summary: The Linux kernel
# The rc snapshot level
%define rcrev 6
# The git snapshot level
%define gitrev 1
%define gitrev 2
# Set rpm version accordingly
%define rpmversion 3.%{upstream_sublevel}.0
%endif
@ -716,8 +716,6 @@ Patch20000: utrace.patch
Patch21000: arm-omap-dt-compat.patch
Patch21001: arm-smsc-support-reading-mac-address-from-device-tree.patch
Patch21070: oom-fix-integer-overflow-of-points.patch
Patch21080: sysfs-msi-irq-per-device.patch
Patch21090: bcma-brcmsmac-compat.patch
@ -730,9 +728,6 @@ Patch21029: nfsv4-include-bitmap-in-nfsv4_get_acl_data.patch
#rhbz 590880
Patch21030: alps.patch
# rhbz 736815
Patch21040: x86-code-dump-fix-truncation.patch
#rhbz 717735
Patch21045: nfs-client-freezer.patch
@ -1400,9 +1395,6 @@ ApplyPatch efi-dont-map-boot-services-on-32bit.patch
# utrace.
ApplyPatch utrace.patch
#rhbz 750402
ApplyPatch oom-fix-integer-overflow-of-points.patch
# Add msi irq ennumeration in sysfs for devices
ApplyPatch sysfs-msi-irq-per-device.patch
@ -1419,9 +1411,6 @@ ApplyPatch nfsv4-include-bitmap-in-nfsv4_get_acl_data.patch
#rhbz 590880
ApplyPatch alps.patch
# rhbz 736815
ApplyPatch x86-code-dump-fix-truncation.patch
#rhbz 717735
ApplyPatch nfs-client-freezer.patch
@ -2233,6 +2222,9 @@ fi
# ||----w |
# || ||
%changelog
* Tue Dec 20 2011 Dave Jones <davej@redhat.com> - 3.2.0-0.rc6.git2.1
- Linux 3.2-rc6-git2 (a4a4923919f2d43583789b1f3603f4e5600d8321)
* Tue Dec 20 2011 Josh Boyer <jwboyer@redhat.com>
- Include crtsaves.o for ppc64 as well (rhbz #769415)
- Drop EDID headers patch from 751589 for now (rhbz #769103)

100
oom-fix-integer-overflow-of-points.patch
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@ -1,100 +0,0 @@
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From: Frantisek Hrbata <fhrbata@redhat.com>
To: rientjes@google.com
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, kosaki.motohiro@jp.fujitsu.com,
oleg@redhat.com, minchan.kim@gmail.com, stable@kernel.org,
eteo@redhat.com, pmatouse@redhat.com
Subject: [PATCH v2] oom: fix integer overflow of points in oom_badness
Date: Mon, 31 Oct 2011 16:56:09 +0100
Message-Id: <1320076569-23872-1-git-send-email-fhrbata@redhat.com>
In-Reply-To: <1320048865-13175-1-git-send-email-fhrbata@redhat.com>
References: <1320048865-13175-1-git-send-email-fhrbata@redhat.com>
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An integer overflow will happen on 64bit archs if task's sum of rss, swapents
and nr_ptes exceeds (2^31)/1000 value. This was introduced by commit
f755a04 oom: use pte pages in OOM score
where the oom score computation was divided into several steps and it's no
longer computed as one expression in unsigned long(rss, swapents, nr_pte are
unsigned long), where the result value assigned to points(int) is in
range(1..1000). So there could be an int overflow while computing
176 points *= 1000;
and points may have negative value. Meaning the oom score for a mem hog task
will be one.
196 if (points <= 0)
197 return 1;
For example:
[ 3366] 0 3366 35390480 24303939 5 0 0 oom01
Out of memory: Kill process 3366 (oom01) score 1 or sacrifice child
Here the oom1 process consumes more than 24303939(rss)*4096~=92GB physical
memory, but it's oom score is one.
In this situation the mem hog task is skipped and oom killer kills another and
most probably innocent task with oom score greater than one.
The points variable should be of type long instead of int to prevent the int
overflow.
Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
---
mm/oom_kill.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 626303b..e9a1785 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -162,7 +162,7 @@ static bool oom_unkillable_task(struct task_struct *p,
unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *mem,
const nodemask_t *nodemask, unsigned long totalpages)
{
- int points;
+ long points;
if (oom_unkillable_task(p, mem, nodemask))
return 0;
--
1.7.6.4
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2
sources
View File

@ -1,4 +1,4 @@
8d43453f8159b2332ad410b19d86a931 linux-3.1.tar.bz2
020a0ea456f0f061bf8d7c52c3670421 patch-3.2-rc6.xz
aa87e7d3593118a2680c8eda45c88e0d patch-3.2-rc6-git1.xz
b5f0924b0547918ca1e1685811554315 compat-wireless-2011-12-18.tar.bz2
e810c6acfc7c251c159e5825dce78122 patch-3.2-rc6-git2.xz

73
x86-code-dump-fix-truncation.patch
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@ -1,73 +0,0 @@
From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 19 Dec 2011 21:07:58 +0000 (+0100)
Subject: x86, dumpstack: Fix code bytes breakage due to missing KERN_CONT
X-Git-Url: https://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftip%2Ftip.git;a=commitdiff_plain;h=13f541c10b30fc6529200d7f9a0073217709622f
x86, dumpstack: Fix code bytes breakage due to missing KERN_CONT
When printing the code bytes in show_registers(), the markers around the
byte at the fault address could make the printk() format string look
like a valid log level and facility code. This would prevent this byte
from being printed and result in a spurious newline:
[ 7555.765589] Code: 8b 32 e9 94 00 00 00 81 7d 00 ff 00 00 00 0f 87 96 00 00 00 48 8b 83 c0 00 00 00 44 89 e2 44 89 e6 48 89 df 48 8b 80 d8 02 00 00
[ 7555.765683] 8b 48 28 48 89 d0 81 e2 ff 0f 00 00 48 c1 e8 0c 48 c1 e0 04
Add KERN_CONT where needed, and elsewhere in show_registers() for
consistency.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Link: http://lkml.kernel.org/r/4EEFA7AE.9020407@ladisch.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index 3b97a80..c99f9ed 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -116,16 +116,16 @@ void show_registers(struct pt_regs *regs)
for (i = 0; i < code_len; i++, ip++) {
if (ip < (u8 *)PAGE_OFFSET ||
probe_kernel_address(ip, c)) {
- printk(" Bad EIP value.");
+ printk(KERN_CONT " Bad EIP value.");
break;
}
if (ip == (u8 *)regs->ip)
- printk("<%02x> ", c);
+ printk(KERN_CONT "<%02x> ", c);
else
- printk("%02x ", c);
+ printk(KERN_CONT "%02x ", c);
}
}
- printk("\n");
+ printk(KERN_CONT "\n");
}
int is_valid_bugaddr(unsigned long ip)
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index 19853ad..6d728d9 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -284,16 +284,16 @@ void show_registers(struct pt_regs *regs)
for (i = 0; i < code_len; i++, ip++) {
if (ip < (u8 *)PAGE_OFFSET ||
probe_kernel_address(ip, c)) {
- printk(" Bad RIP value.");
+ printk(KERN_CONT " Bad RIP value.");
break;
}
if (ip == (u8 *)regs->ip)
- printk("<%02x> ", c);
+ printk(KERN_CONT "<%02x> ", c);
else
- printk("%02x ", c);
+ printk(KERN_CONT "%02x ", c);
}
}
- printk("\n");
+ printk(KERN_CONT "\n");
}
int is_valid_bugaddr(unsigned long ip)