Re: sparse segfault in kernel -mm tree

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On Mon, 5 Mar 2007 18:33:51 -0800 Christopher Li wrote:

> Hmm, It does not happen on tip of git tree even on 64bit boxes.

I'm on x86_64.

> I can't reproduce it with a script that copy your command line
> for mm1 tree either. I need to modify the gcc include path.
> But after that it pass fine.
> 
> Can you send me your .config file?

make allmodconfig

> If you have other ways to narrow down the bug that will be great.
> 
> Sorry I am out of luck to reproduce it.
> 
> Chris
> 
> 
> On Mon, Mar 05, 2007 at 05:53:22PM -0800, Randy Dunlap wrote:
> > Hi,
> > 
> > sparse (latest git tarball from DaveJones) segfaults when
> > checking the 2.6.21-rc2-mm1 tree:
> > 
> > 
> >   CHECK   drivers/net/vioc/vioc_provision.c
> > /bin/sh: line 1:  4021 Segmentation fault      sparse -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise -D__x86_64__ -m64 -nostdinc -isystem /usr/lib64/gcc/x86_64-suse-linux/4.1.0/include -Wp,-MD,drivers/net/vioc/.vioc_provision.o.d -nostdinc -isystem /usr/lib64/gcc/x86_64-suse-linux/4.1.0/include -D__KERNEL__ -Iinclude -include include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Os -mtune=generic -m64 -mno-red-zone -mcmodel=kernel -pipe -fno-reorder-blocks -Wno-sign-compare -fno-asynchronous-unwind-tables -funit-at-a-time -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -maccumulate-outgoing-args -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -fno-stack-protector -Wdeclaration-after-statement -Wno-pointer-sign -DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(vioc_provision)" -D"KBUILD_MODNAME=KBUILD_STR(vioc)" drivers/net/vioc/vioc_provision.c
> > make[3]: *** [drivers/net/vioc/vioc_provision.o] Error 139
> > make[2]: *** [drivers/net/vioc] Error 2
> > make[1]: *** [drivers/net] Error 2
> > make: *** [drivers] Error 2
> > 
> > sparse[4021]: segfault at 0000000000000050 rip 000000000040fd63 rsp 00007fff6e1cccb0 error 4
> > 
> > ---

---
~Randy
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