[Bug 2040019] [NEW] Bash environment gets corrupted

[Charles Evans]

Public bug reported:

bash 5.1-6ubuntu1 (jammy)
After loading about 1000 aliases totaling 50kB
Setting 200 vars totaling 20kB (half from default profile)
And 1200 functions totaling 400kB (~100/72kB default completions) 
After running the occasional basic (but lengthy) scripts with no recursion, runtimes under 1 minute, all under 1 second CPU time in bash,
10-20 times a day for less than a month,

bash starts losing functions and variables and aliases.

Nothing in dmesg or syslog
System is otherwise stable:
-Memtest runs multiple passes ok
-Several GB of apt updates all verify no errors
-Checkrestart did not show any copies of bash needing restarts
-no suspends, no remote shell
-weekly apt updates run in this bash shell

kernel 6.2.0-32 generic
libc6 2.35-0ubuntu3.4

** Affects: bash (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2040019

Title:
  Bash environment gets corrupted

Status in bash package in Ubuntu:
  New

Bug description:
  bash 5.1-6ubuntu1 (jammy)
  After loading about 1000 aliases totaling 50kB
  Setting 200 vars totaling 20kB (half from default profile)
  And 1200 functions totaling 400kB (~100/72kB default completions) 
  After running the occasional basic (but lengthy) scripts with no recursion, runtimes under 1 minute, all under 1 second CPU time in bash,
  10-20 times a day for less than a month,

  bash starts losing functions and variables and aliases.

  Nothing in dmesg or syslog
  System is otherwise stable:
  -Memtest runs multiple passes ok
  -Several GB of apt updates all verify no errors
  -Checkrestart did not show any copies of bash needing restarts
  -no suspends, no remote shell
  -weekly apt updates run in this bash shell

  kernel 6.2.0-32 generic
  libc6 2.35-0ubuntu3.4

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