KumiSystems/openwrtv4
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
openwrtv4/target/linux/generic
History
Gabor Juhos 621979b49f kernel: yaffs: use new_sync_{read,write} for 3.18+ 
Using the do_sync_{read,write} functions in conjunction
with the generic_file_{read,write}_iter causes a kernel
panic like this:

  root@OpenWrt:/# mount -t yaffs /dev/mtdblock5 /mnt
  [ 2884.110000] yaffs: dev is 32505861 name is "mtdblock5" rw
  [ 2884.120000] yaffs: passed flags ""
  root@OpenWrt:/# hexdump -vC -n 64 /mnt/kernel
  [ 2902.700000] CPU 0 Unable to handle kernel paging request at virtual \
    address 00000000, epc == 00000000, ra == 80129414
  [ 2902.710000] Oops[#1]:
  [ 2902.710000] CPU: 0 PID: 1030 Comm: hexdump Not tainted 3.18.9 #2
  [ 2902.710000] task: 878e7a20 ti: 868c6000 task.ti: 868c6000
  [ 2902.710000] $ 0   : 00000000 fffffff8 00000000 00000000
  [ 2902.710000] $ 4   : 868c7e70 868c7ea8 00000001 868c7f08
  [ 2902.710000] $ 8   : 00000038 80064f18 80072280 00000000
  [ 2902.710000] $12   : 7fa152b8 7709e3a0 00c42008 7709e3a0
  [ 2902.710000] $16   : 868c7f08 86a46000 00000010 878e7a20
  [ 2902.710000] $20   : 7705c4b0 00000010 00000000 00000000
  [ 2902.710000] $24   : 770960bc 7707dd78
  [ 2902.710000] $28   : 868c6000 868c7e58 7f8e7030 80129414
  [ 2902.710000] Hi    : 00000000
  [ 2902.710000] Lo    : ffffffff
  [ 2902.710000] epc   : 00000000   (null)
  [ 2902.710000]     Not tainted
  [ 2902.710000] ra    : 80129414 do_sync_read+0x7c/0xb4
  [ 2902.710000] Status: 1900dc03 KERNEL EXL IE
  [ 2902.710000] Cause : 00800008
  [ 2902.710000] BadVA : 00000000
  [ 2902.710000] PrId  : 00019750 (MIPS 74Kc)

Change the yaffs code to use the new_sync_{read,write} functions
instead.

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

SVN-Revision: 44974
2015-03-25 08:59:12 +00:00
..
base-files update the /init file to start /sbin/init 2013-03-13 18:11:13 +00:00
files b53: reverse duplex bit meaning for IMP state override register 2015-03-18 10:44:15 +00:00
image rename target/linux/generic-2.6 to generic 2010-06-26 20:42:58 +00:00
patches-3.10 ipv6: fix throw routes 2015-03-19 15:46:03 +00:00
patches-3.14 kernel: fix ipsec related regression in the netfilter rtcache patch 2015-03-20 22:13:34 +00:00
patches-3.18 kernel: yaffs: use new_sync_{read,write} for 3.18+ 2015-03-25 08:59:12 +00:00
patches-3.19 kernel: yaffs: use new_sync_{read,write} for 3.18+ 2015-03-25 08:59:12 +00:00
patches-4.0 kernel: yaffs: use new_sync_{read,write} for 3.18+ 2015-03-25 08:59:12 +00:00
config-3.10 kernel: add missing MTD_SPLIT_FIT_FW symbol 2015-03-16 08:05:42 +00:00
config-3.14 kernel: add missing MTD_SPLIT_FIT_FW symbol 2015-03-16 08:05:42 +00:00
config-3.18 kernel: add a few more missing config symbols 2015-03-17 07:24:51 +00:00
config-3.19 kernel: add a few more missing config symbols 2015-03-17 07:24:51 +00:00
config-4.0 kernel: add two more missing config symbols 2015-03-21 21:46:47 +00:00
PATCHES kernel: update PATCHES with a stricter policy 2013-07-09 20:52:07 +00:00