gdb 10.1 with glibc 2.33 attach to process, td_ta_thr_iter fail

[Simon Marchi]

On 2021-02-21 8:42 p.m., Simon Marchi via Gdb wrote:
> 
> 
> On 2021-02-20 11:33 a.m., Domen Stangar via Gdb wrote:
>> Hi,
>> is anyone running glibc 2.33 and tried to attach to process that is running threads.
>> Recently slackware did update from glibc 2.32 to glibc 2.33 and there are messages that weren't before.
>> So glibc 2.32 had no such issues.
>> I also used this commands in gdb.
>> set debug libthread-db 1
>> maint set check-libthread-db 1
>> So when attaching to process that has threads, i get this.
>>
>> Trying host libthread_db library: libthread_db.so.1.
>> Host libthread_db.so.1 resolved to: /lib64/libthread_db.so.1.
>> Running libthread_db integrity checks:
>> warning: libthread_db integrity checks failed: td_ta_thr_iter failed: generic error
>> Trying host libthread_db library: /lib64/libthread_db.so.1.
>> Running libthread_db integrity checks:
>> warning: libthread_db integrity checks failed: td_ta_thr_iter failed: generic error
>> thread_db_load_search returning 0
>> warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
>> Trying host libthread_db library: libthread_db.so.1.
>> Host libthread_db.so.1 resolved to: /lib64/libthread_db.so.1.
>> Running libthread_db integrity checks:
>>   Got thread 0x7f2c184b5740 => 14613 => 0x7f2c184b5740 ... OK
>>   Got thread 0x7f2c184b4640 => 14614 => 0x7f2c184b4640 ... OK
>> libthread_db integrity checks passed.
>> [Thread debugging using libthread_db enabled]
>> Using host libthread_db library "/lib64/libthread_db.so.1".
>> thread_db_load_search returning 1
>>
>> Anyone else has this issues with glibc 2.33 ?
>>
>> Thank you, Domen
>>
> 
> I see that on Arch Linux too, also glibc 2.33.  I have not look into it
> yet.
> 
> Simon
> 

FYI I opened this bug about this:

https://sourceware.org/bugzilla/show_bug.cgi?id=27526

Simon