Re: glibc detected *** groupadd: malloc(): memory corruption

[Robert Yang <liezhi.yang@windriver.com>]

Thanks Mark, the rpm.real also has the same problem when the length of tmpdir
is 210, it seems that this is because of the glibc.


And also other problems found:
When use PACKAGE_CLASSES = "package_deb", and the length of tmpdir is 177,
the error is:

/too/long/path/totmp/sysroots/x86_64-linux/usr/bin/dpkg-scanpackages: bad 
interpreter: No such file or directory

The interpreter is perl, and it does exist, it seems that we should limit
the length of tmpdir to a smaller value then 177 rather than fix these strange
problems. I will go on working on it.

// Robert

On 06/19/2012 01:47 AM, Mark Hatle wrote:
> We're not away of any size limitations within pseudo, other then PATH_MAX which
> is typically 4096...
>
> --Mark
>
> On 6/18/12 4:17 AM, Robert Yang wrote:
>>
>> Hi Experts:
>>
>> I've met a strange issue, when set the length of builddir to
>> 266 (Why I did this is that I need to know how long the tmpdir
>> that oe-core can support):
>>
>> NOTE: package dbus-1.4.20-r3.0: task do_install: Started
>> *** glibc detected *** groupadd: malloc(): memory corruption:
>> 0x000000000101da70 ***
>> *** glibc detected *** groupadd: malloc(): memory corruption:
>> 0x000000000101da70 ***
>>
>> Then the build would hang, this is caused by the command:
>>
>> PSEUDO_PREFIX=/too/long/path/tmp/sysroots/x86_64-linux/usr
>> PSEUDO_LOCALSTATEDIR=... PSEUDO_PASSWD=...
>> PSEUDO_NOSYMLINKEXP=1 PSEUDO_DISABLED=0 PSEUDO_LOCALSTATEDIR
>> ... /too/long/path/to/tmp/sysroots/x86_64-linux/usr/bin/pseudo
>> groupadd --root /too/long/path/to/tmp/sysroots/qemux86 -r netdev -f
>>
>> 1) I had looked into the code of groupadd, and found that this would
>> happen when it used the glibc function which needs malloc(for example,
>> the access()), so it seemed this was caused by the glibc or pseudo,
>> but I didn't know why it only happened to groupadd/useradd.
>>
>> 2) I had tried not to use pseudo, it worked well:
>>
>> sudo groupadd --root /too/long/path/to/tmp/sysroots/qemux86 -r netdev -f
>>
>> From this, it seemed that the glibc was ok
>>
>> 3) I had tried to write a small piece of code which used the access(), and
>> used pseudo to run it, it worked well:
>>
>> /too/long/path/for/pseudo/settings/and/then/run/pseudo my_app
>>
>> From this, it seemed that both pseudo and glibc were OK.
>>
>> These 3 steps make me puzzle, maybe we can think that the tmpdir can not
>> be too long, and limit it to a proper length, please see this:
>>
>> http://lists.linuxtogo.org/pipermail/openembedded-core/2012-May/022112.html
>>
>> BTW. the "argument list too long" error has been fixed.
>>
>> Any suggestion is appreciated.
>>
>
>
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