On Fri, Apr 3, 2009 at 10:11 PM, Zhang Le <r0bertz@xxxxxxxxxx> wrote: > On 20:51 Fri 03 Apr , wu zhangjin wrote: >> okay, please check the attachment, thx! >> >> including: >> >> 1. add the HAVE_FUNCTION_TRACE_MCOUNT_TEST line in arch/mips/Kconfig >> 2. remove the useless registers save & restore operation in mcount.S >> 3. and add a "notrace" flag to tick_do_update_jiffies64 to avoid the >> nmi exception problem. > > Have you tested the latest patch? Any working .config file? > I just tested it, seems can't boot. yes, i have tested it on qemu/malta, the attachment include a configuration & an init ram fs: initrd.gz boot it: $ qemu-system-mipsel -kernel vmlinux-qemu-malta-ftrace -initrd qemu-malta-initrd.gz -append "root=/dev/ram0 init=/bin/sh console=ttyS0 ramdisk_size=3000" -nographic -M malta -hda /dev/zero and also, i just test it on loongson2f(fuloong 6003) with the configuration file: defconfig-fl-rt-ftrace, but configured only as serial port debugging mode via a minicom, so, you need to add the other kernel modules if not have a serial port :-( > > I have pushed the patch, along with my fix, to my git tree, so that > the patch could be further polished. It is in linux-2.6.29-stable-ftrace branch. > > http://repo.or.cz/w/linux-2.6/linux-loongson.git > > BTW, it seems linux-mips@xxxxxxxxxxxxxxx is not an alias of > linux-mips@xxxxxxxxxxxxxx, since I haven't seen our previous emails appear in > linux-mips ML's archive. So I have added linux-mips@xxxxxxxxxxxxxx to CC list. > ooh, it's my fault :-) linux-mips@xxxxxxxxxxxxxx is the right one~~ > When this patch is more ready to be included, we'd better include LKML in CC > list, too. Because there are more ftrace gurus which could give advices to this > patch. > > Zhang, Le > http://zhangle.is-a-geek.org > >> -- Studying engineer. Wu Zhangjin Lanzhou University http://www.lzu.edu.cn Distributed & Embedded System Lab http://dslab.lzu.edu.cn School of Information Science and Engeneering http://xxxy.lzu.edu.cn wuzhangjin@xxxxxxxxx http://falcon.oss.lzu.edu.cn Address:Tianshui South Road 222,Lanzhou,P.R.China Zip Code:730000 Tel:+86-931-8912025
Attachment:
qemu_malta_defconfig_ftrace
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Attachment:
qemu-malta-initrd.gz
Description: GNU Zip compressed data
Attachment:
defconfig-fl-rt-ftrace
Description: Binary data
Attachment:
patch-2.6.29-ftrace4mips-fix1
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