mtk-20170518/target/linux/generic/patches-3.3/930-crashlog.patch, branch reboot MTK 20170518 : Mediatek SDK based on OpenWRT Barrier Breaker kernel: remove linux 3.3 patches and config 2015-01-24T20:02:02+00:00 Felix Fietkau nbd@openwrt.org 2015-01-24T20:02:02+00:00 186db26d05034df31e0ced1b8b5d7d62ebe39b8f Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 44109 
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 44109
kernel: crashlog: Avoid out-of-bounds write 2013-08-21T20:59:25+00:00 Felix Fietkau nbd@openwrt.org 2013-08-21T20:59:25+00:00 3848e6a246192d42160034e106f838b791931dce vsnprintf returns the number of chars that would have been written, not the actual number of chars written. This can lead to crashlog_buf->len being too big which in turn can lead to get_maxlen() returning negative numbers. The length argument of kmsg_dump_get_buffer will be casted to a size_t which makes a negative input a big positive number allowing kmsg_dump_get_buffer to write out of bounds. Fix this by using vscnprintf which returns the actually written number of chars. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> SVN-Revision: 37820 
vsnprintf returns the number of chars that would have been written, not
the actual number of chars written. This can lead to crashlog_buf->len
being too big which in turn can lead to get_maxlen() returning negative
numbers. The length argument of kmsg_dump_get_buffer will be casted to
a size_t which makes a negative input a big positive number allowing
kmsg_dump_get_buffer to write out of bounds.

Fix this by using vscnprintf which returns the actually written number
of chars.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>

SVN-Revision: 37820
linux/3.3: disable crashlog on PPC 2013-02-01T17:28:44+00:00 Gabor Juhos juhosg@openwrt.org 2013-02-01T17:28:44+00:00 d158dfc607c185f95cda91fa546f3f33d53f33a4 It causes NULL pointer dereference: [ 0.638235] __ioremap(): phys addr 0x7f00000 is RAM lr c025d61c [ 0.644090] Unable to handle kernel paging request for data at address 0x00000000 [ 0.651533] Faulting instruction address: 0xc025d620 [ 0.656483] Oops: Kernel access of bad area, sig: 11 [#1] [ 0.661856] P1010 RDB [ 0.664113] Modules linked in: [ 0.667152] NIP: c025d620 LR: c025d61c CTR: c000dc38 [ 0.672101] REGS: c7831ef0 TRAP: 0300 Not tainted (3.3.8) [ 0.677740] MSR: 00029000 <CE,EE,ME> CR: 42022082 XER: 20000000 [ 0.683817] DEAR: 00000000, ESR: 00000000 [ 0.687811] TASK = c782c000[1] 'swapper' THREAD: c7830000 [ 0.693017] GPR00: a1ee0000 c7831fa0 c782c000 00000000 0000214c ffffffff c7831ea6 0001ffff [ 0.701350] GPR08: c03697cc c035fba0 c03697cc c0360000 42022022 00000000 00000000 00000000 [ 0.709682] GPR16: c0000a00 00000014 3fffffff 00ffa000 00000015 07fc42bc c0360000 00000000 [ 0.718015] GPR24: 00000000 00000000 00001680 c0360000 00000000 c025d5e8 c0390000 c038b824 [ 0.726535] NIP [c025d620] crashlog_init_fs+0x38/0xd8 [ 0.731560] LR [c025d61c] crashlog_init_fs+0x34/0xd8 [ 0.736503] Call Trace: [ 0.738939] [c7831fa0] [c025d61c] crashlog_init_fs+0x34/0xd8 (unreliable) [ 0.745712] [c7831fb0] [c0001e98] do_one_initcall+0xd4/0x198 [ 0.751357] [c7831fe0] [c02537f4] kernel_init+0x9c/0x120 [ 0.756647] [c7831ff0] [c000c2dc] kernel_thread+0x4c/0x68 [ 0.762022] Instruction dump: [ 0.764975] 3860fff4 bfc10008 3fc0c039 90010014 3bfeb824 801f0004 2f800000 41be00a0 [ 0.772699] 7c030378 38804000 4bdb38cd 3c00a1ee <81630000> 6000dead 7c691b78 907eb824 Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 35435 
It causes NULL pointer dereference:

[    0.638235] __ioremap(): phys addr 0x7f00000 is RAM lr c025d61c
[    0.644090] Unable to handle kernel paging request for data at address 0x00000000
[    0.651533] Faulting instruction address: 0xc025d620
[    0.656483] Oops: Kernel access of bad area, sig: 11 [#1]
[    0.661856] P1010 RDB
[    0.664113] Modules linked in:
[    0.667152] NIP: c025d620 LR: c025d61c CTR: c000dc38
[    0.672101] REGS: c7831ef0 TRAP: 0300   Not tainted  (3.3.8)
[    0.677740] MSR: 00029000 <CE,EE,ME>  CR: 42022082  XER: 20000000
[    0.683817] DEAR: 00000000, ESR: 00000000
[    0.687811] TASK = c782c000[1] 'swapper' THREAD: c7830000
[    0.693017] GPR00: a1ee0000 c7831fa0 c782c000 00000000 0000214c ffffffff c7831ea6 0001ffff
[    0.701350] GPR08: c03697cc c035fba0 c03697cc c0360000 42022022 00000000 00000000 00000000
[    0.709682] GPR16: c0000a00 00000014 3fffffff 00ffa000 00000015 07fc42bc c0360000 00000000
[    0.718015] GPR24: 00000000 00000000 00001680 c0360000 00000000 c025d5e8 c0390000 c038b824
[    0.726535] NIP [c025d620] crashlog_init_fs+0x38/0xd8
[    0.731560] LR [c025d61c] crashlog_init_fs+0x34/0xd8
[    0.736503] Call Trace:
[    0.738939] [c7831fa0] [c025d61c] crashlog_init_fs+0x34/0xd8 (unreliable)
[    0.745712] [c7831fb0] [c0001e98] do_one_initcall+0xd4/0x198
[    0.751357] [c7831fe0] [c02537f4] kernel_init+0x9c/0x120
[    0.756647] [c7831ff0] [c000c2dc] kernel_thread+0x4c/0x68
[    0.762022] Instruction dump:
[    0.764975] 3860fff4 bfc10008 3fc0c039 90010014 3bfeb824 801f0004 2f800000 41be00a0
[    0.772699] 7c030378 38804000 4bdb38cd 3c00a1ee <81630000> 6000dead 7c691b78 907eb824

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 35435
do not build crashlog on sparc too 2012-11-16T16:32:33+00:00 Florian Fainelli florian@openwrt.org 2012-11-16T16:32:33+00:00 8ad0b56ba50fa759d9c9747f9f931903da58c021 This is crashing the kernel in crashlog_init_fs(), until fixed, disable it for SPARC too. Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 34213 
This is crashing the kernel in crashlog_init_fs(), until fixed, disable it
for SPARC too.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 34213
generic: use __meminit annotation for crashlog_init_memblock 2012-08-12T10:30:41+00:00 Gabor Juhos juhosg@openwrt.org 2012-08-12T10:30:41+00:00 b942309f4fb6b9268b59466e830e31fdea1f5f71 Fixes this section mismatch warning: WARNING: vmlinux.o(.meminit.text+0xb14): Section mismatch in reference from the function memblock_insert_region() to the function .init.text:crashlog_init_memblock() The function __meminit memblock_insert_region() references a function __init crashlog_init_memblock(). If crashlog_init_memblock is only used by memblock_insert_region then annotate crashlog_init_memblock with a matching annotation. Also, remove the __init annotations from 'include/linux/crashlog.h' SVN-Revision: 33137 
Fixes this section mismatch warning:
WARNING: vmlinux.o(.meminit.text+0xb14): Section mismatch in reference
from the function memblock_insert_region() to the function
.init.text:crashlog_init_memblock()
The function __meminit memblock_insert_region() references
a function __init crashlog_init_memblock().
If crashlog_init_memblock is only used by memblock_insert_region then
annotate crashlog_init_memblock with a matching annotation.

Also, remove the __init annotations from 'include/linux/crashlog.h'

SVN-Revision: 33137
disable crashlog on ARM platforms for the moment 2012-07-31T23:09:46+00:00 Florian Fainelli florian@openwrt.org 2012-07-31T23:09:46+00:00 c0561a42e758e0373354b4bd25341a40343a226d It is currently badly broken on ARM, until fixed, disable it SVN-Revision: 32926 
It is currently badly broken on ARM, until fixed, disable it

SVN-Revision: 32926
crashlog: fix dependency, add memblock support 2012-07-22T16:39:33+00:00 Felix Fietkau nbd@openwrt.org 2012-07-22T16:39:33+00:00 b59bc92c6edf517d0a2d958530ac58fc58f74c32 SVN-Revision: 32787 
SVN-Revision: 32787
kernel: add preliminary support for linux 3.3 2012-02-02T08:23:54+00:00 Jonas Gorski jogo@openwrt.org 2012-02-02T08:23:54+00:00 eca9950f63ec4491a7bd6138174ac08595184e1b Based on 3.3-rc2 SVN-Revision: 29986 
Based on 3.3-rc2

SVN-Revision: 29986