rewrite_parent_branch: Assertion `changed' failed

rewrite_parent_branch: Assertion `changed' failed

[Jiri Slaby]

Hi,

I got this from sparse:
  CHECK   /home/l/latest/xxx/net/mac80211/ieee80211.c
sparse: flow.c:804: rewrite_parent_branch: Assertion `changed' failed.
/bin/sh: line 1:  8639 Neúspěšně ukončen (SIGABRT)        sparse -D__linux__ 
-Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise -D__x86_64__ -m64 -nostdinc 
-isystem /usr/lib64/gcc/x86_64-suse-linux/4.2.1/include 
-Wp,-MD,net/mac80211/.ieee80211.o.d -nostdinc -isystem 
/usr/lib64/gcc/x86_64-suse-linux/4.2.1/include -D__KERNEL__ -Iinclude -Iinclude2 
-I/home/l/latest/xxx/include -include include/linux/autoconf.h 
-I/home/l/latest/xxx/net/mac80211 -Inet/mac80211 -Wall -Wundef 
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common 
-Werror-implicit-function-declaration -O2 -fno-stack-protector -m64 
-mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time 
-maccumulate-outgoing-args -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 
-pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx 
-mno-sse2 -mno-3dnow -fno-omit-frame-pointer -fno-optimize-sibling-calls -g 
-Wdeclaration-after-statement -Wno-pointer-sign -DMODULE -D"KBUILD_STR(s)=#s" 
-D"KBUILD_BASENAME=KBUILD_STR(ieee80211)" 
-D"KBUILD_MODNAME=KBUILD_STR(mac80211)" /home/l/latest/xxx/net/mac80211/ieee80211.c
make[3]: *** [net/mac80211/ieee80211.o] Error 134
make[2]: *** [net/mac80211] Error 2
make[1]: *** [net] Error 2
make: *** [sub-make] Error 2


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Re: rewrite_parent_branch: Assertion `changed' failed

[Jiri Slaby]

On 04/07/2008 08:53 PM, Jiri Slaby wrote:
> Hi,
> 
> I got this from sparse:
>  CHECK   /home/l/latest/xxx/net/mac80211/ieee80211.c
> sparse: flow.c:804: rewrite_parent_branch: Assertion `changed' failed.
> /bin/sh: line 1:  8639 Neúspěšně ukončen (SIGABRT)        sparse 
> -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise -D__x86_64__ 
> -m64 -nostdinc -isystem /usr/lib64/gcc/x86_64-suse-linux/4.2.1/include 
> -Wp,-MD,net/mac80211/.ieee80211.o.d -nostdinc -isystem 
> /usr/lib64/gcc/x86_64-suse-linux/4.2.1/include -D__KERNEL__ -Iinclude 
> -Iinclude2 -I/home/l/latest/xxx/include -include 
> include/linux/autoconf.h -I/home/l/latest/xxx/net/mac80211 
> -Inet/mac80211 -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs 
> -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration 
> -O2 -fno-stack-protector -m64 -mtune=generic -mno-red-zone 
> -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args 
> -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -pipe -Wno-sign-compare 
> -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow 
> -fno-omit-frame-pointer -fno-optimize-sibling-calls -g 
> -Wdeclaration-after-statement -Wno-pointer-sign -DMODULE 
> -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(ieee80211)" 
> -D"KBUILD_MODNAME=KBUILD_STR(mac80211)" 
> /home/l/latest/xxx/net/mac80211/ieee80211.c
> make[3]: *** [net/mac80211/ieee80211.o] Error 134
> make[2]: *** [net/mac80211] Error 2
> make[1]: *** [net] Error 2
> make: *** [sub-make] Error 2

f*ck, the hand is too fast.

It's 2.6.25-rc8-mm1 code. It's opensuse sparse-0.1-46, core from the crash is here:
http://www.fi.muni.cz/~xslaby/sklad/core.sparse.bz2

It seems like anything from net/mac80211/ fail to be checked.
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Re: rewrite_parent_branch: Assertion `changed' failed

[Pavel Roskin]

On Mon, 2008-04-07 at 21:05 +0200, Jiri Slaby wrote:
> On 04/07/2008 08:53 PM, Jiri Slaby wrote:
> > Hi,
> > 
> > I got this from sparse:
> >  CHECK   /home/l/latest/xxx/net/mac80211/ieee80211.c
> > sparse: flow.c:804: rewrite_parent_branch: Assertion `changed' failed.
> > /bin/sh: line 1:  8639 Neúspěšně ukončen (SIGABRT)        sparse

That's "unsuccessful finish", for those less knowledgeable in Slavic
languages :-)

> It's 2.6.25-rc8-mm1 code. It's opensuse sparse-0.1-46, core from the
> crash is here:
> http://www.fi.muni.cz/~xslaby/sklad/core.sparse.bz2

If it's indeed version 0.1, I strongly suggest that you test the current
git version, which is version 0.4.1 plus 10 or so patches.

git://git.kernel.org/pub/scm/linux/kernel/git/josh/sparse.git

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Regards,
Pavel Roskin
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Re: rewrite_parent_branch: Assertion `changed' failed

[Jiri Slaby]

On 04/07/2008 11:22 PM, Pavel Roskin wrote:
> On Mon, 2008-04-07 at 21:05 +0200, Jiri Slaby wrote:
>> It's 2.6.25-rc8-mm1 code. It's opensuse sparse-0.1-46, core from the
>> crash is here:
>> http://www.fi.muni.cz/~xslaby/sklad/core.sparse.bz2
> 
> If it's indeed version 0.1, I strongly suggest that you test the current
> git version, which is version 0.4.1 plus 10 or so patches.

Heh, what the hell, how old is it? A year and a half. I must admit I haven't 
noticed the version in the haste... Filing a bug, thanks.