[Bug 2043823] Re: valgrind shared memory programs

[Philip M]

Up to shmat call, the args are exactly the same in both cases:
pmilosla at pmilosla-ubuntu22:mgr> sudo ../bin/irisdb -s.                                                                       About to call attshm with irisdb arg:0 msgbuf:
shmem crckeystr crc:1786300436
status: 1 buf:

Node: pmilosla-ubuntu22, Instance: LATEST

USER>h
pmilosla at pmilosla-ubuntu22:mgr> sudo valgrind --verbose --tool=memcheck --log-file=valgrind_log_%p.txt --trace-children=yes --leak-check=full --show-leak-kinds=all --track-origins=yes ../bin/irisdb -s.
About to call attshm with irisdb arg:0 msgbuf:
shmem crckeystr crc:1786300436
status: -1 buf:Error 22 mapping shared memory id 0x002f8023 (keyval: 0x6a78c814)
Unexpected error occurred attempting to attach to shared memory.
pmilosla at pmilosla-ubuntu22:mgr> 

pmilosla at pmilosla-ubuntu22:mgr> ipcs

------ Message Queues --------
key        msqid      owner      perms      used-bytes   messages    
0x00000000 98304      root       660        0            0           
0x00000000 98305      root       660        0            0           
0x00000000 98306      root       660        0            0           

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status      
0x00000000 1572877    pmilosla   606        15377076   2          dest         
0x00000000 1572878    pmilosla   606        15377076   2          dest         
0x00000000 3112976    pmilosla   600        524288     2          dest         
0x00000000 1572882    pmilosla   600        524288     2          dest         
0x00000000 2850845    pmilosla   600        524288     2          dest         
0x00000000 3112993    pmilosla   600        524288     2          dest         
0x6a78c814 3112995    root       660        1090519040 25                      
0x00000000 3145764    pmilosla   600        524288     2          dest         
0x00000000 3113008    pmilosla   600        524288     2          dest         

------ Semaphore Arrays --------
key        semid      owner      perms      nsems

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https://bugs.launchpad.net/bugs/2043823

Title:
  valgrind shared memory programs

Status in valgrind package in Ubuntu:
  New

Bug description:
  Unexpected error occurred attempting to attach to shared memory.

  This worked fine in ubuntu 20 with our APP. But is failing on ubuntu
  22. I tried the latest valgrind from the internet also, same thing.

  
  root at pmilosla-ubuntu22:/opt/iris/TAGGED/mgr# valgrind ../bin/irisdb -s.
  ==236668== Memcheck, a memory error detector
  ==236668== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
  ==236668== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
  ==236668== Command: ../bin/irisdb -s.
  ==236668== 
  ==236668== Conditional jump or move depends on uninitialised value(s)
  ==236668==    at 0x936BB7: mainsub (mux.c:917)
  ==236668==    by 0x939C56: mmain (mux.c:2341)
  ==236668==    by 0x4107C9: main (main.c:120)
  ==236668== 
  ==236668== Conditional jump or move depends on uninitialised value(s)
  ==236668==    at 0x936BCA: mainsub (mux.c:918)
  ==236668==    by 0x939C56: mmain (mux.c:2341)
  ==236668==    by 0x4107C9: main (main.c:120)
  ==236668== 
  Unexpected error occurred attempting to attach to shared memory.
  ==236668== 
  ==236668== HEAP SUMMARY:
  ==236668==     in use at exit: 0 bytes in 0 blocks
  ==236668==   total heap usage: 11 allocs, 11 frees, 80,626 bytes allocated
  ==236668== 
  ==236668== All heap blocks were freed -- no leaks are possible
  ==236668== 
  ==236668== Use --track-origins=yes to see where uninitialised values come from
  ==236668== For lists of detected and suppressed errors, rerun with: -s
  ==236668== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)
  root at pmilosla-ubuntu22:/opt/iris/TAGGED/mgr#

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: valgrind (not installed)
  ProcVersionSignature: Ubuntu 6.2.0-36.37~22.04.1-generic 6.2.16
  Uname: Linux 6.2.0-36-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Nov 17 12:05:06 2023
  InstallationDate: Installed on 2023-06-14 (156 days ago)
  InstallationMedia: Ubuntu 22.04.2 LTS "Jammy Jellyfish" - Release amd64 (20230223)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: valgrind
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.default.apport:
   # set this to 0 to disable apport, or to 1 to enable it
   # you can temporarily override this with
   # sudo service apport start force_start=1
   enabled=0
  mtime.conffile..etc.default.apport: 2023-07-11T12:19:20.955497

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