control: notfound -1 glibc/2.34-8 control: found -1 glibc/2.35-1 Hello Vasudev,
On 2022-09-24 21:18, Vasudev Kamath wrote: > > > Hello Vasudev, > > ok, reverting back would explain reportbug using version 2.34-8. > > > > But was this core taken at a time where all libc packages > > should have been at 2.35-1 ? > > Then I don't understand that "Module" line, > > which shows the build-id from 2.34-8. This mail should fix the BTS version. > Ah sorry I did coredumpctl debug post reverting the libc6. But core file > attached is taken when actual 2.35 was installed. I have looked at the coredump you sent me: $ eu-unstrip -n --core core.expr.1000.d5ff83e0fd69439497afd17511de3417.85280.1663923583000000 0x5604c0781000+0x1e000 b919757cbc30fbb64b14498222499d972fd80acd@0x5604c0781368 . - /usr/bin/expr 0x7fbfabc00000+0x201000 ef3afb43092687d7fcc8167fabdee73f4a3287f1@0x7fbfabc00380 - - /usr/lib/x86_64-linux-gnu/libc.so.6 0x7ffdc5bde000+0x1000 c35c947b072ff69b395cd326b83b24630f2c5065@0x7ffdc5bde54c . - linux-vdso.so.1 0x7fbfac04c000+0x362b8 a03c3b14d371da908a3f22007b3f0c73d1f9f634@0x7fbfac04c248 /lib64/ld-linux-x86-64.so.2 - ld-linux-x86-64.so.2 0x7fbfabfc9000+0x80bc8 25c73b398493c695a013a6d9d493a8316aac0fa0@0x7fbfabfc9248 /usr/lib/x86_64-linux-gnu/libgmp.so.10 - libgmp.so.10 ef3afb43092687d7fcc8167fabdee73f4a3287f1 => comes from libc6 version 2.34-8 a03c3b14d371da908a3f22007b3f0c73d1f9f634 => comes from libc6 version 2.35-1 So the crash is likely due to a mismatch between glibc. I believe this is due to an issue with usrmerge as the paths reported by your core file seems to show that your system is merged, while reportbug says "merged-usr: no". By using a non usrmerged system, with libc6 2.34-8 duplicated in both /lib/x86_64-linux-gnu/ and /usr/lib/x86_64-linux-gnu, and upgrading it to libc6 2.35-1, I am able to reproduce your issue with expr: $ expr *** stack smashing detected ***: terminated Aborted > > And if I understand you right the stack smashing > > is from "autoreconf --version". > > But I could not find it executing any "expr" processes in my test VM. > > Actually just invoking autoconf was crashing and just executing expr itself > was also crashing. If needed I can install latest libc and provide any > required information. Do let me know Before trying to upgrade again, we should ensure your system is in a sane state. Could you please send us the output of: ls -ld /lib ls -l /lib/x86_64-linux-gnu/libc.so.6 ls -l /usr/lib/x86_64-linux-gnu/libc.so.6 Regards Aurelien -- Aurelien Jarno GPG: 4096R/1DDD8C9B aurel...@aurel32.net http://www.aurel32.net