** Description changed:

- sudo aptitude upgrade
+ Ubuntu Edgy Knot1
+ aptitude-0.4.0-5ubuntu3
+ 
+ 
+ $sudo aptitude upgrade
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Reading extended state information
  Initializing package states... Done
  Building tag database... Done
  
  
  here it stops and starts hogging cpu.
  
  $ ls /var/cache/apt/archives/*.deb | wc -l
  563
  
  I tried lookin what happens with strace, first there's gettimeofday calls
  gettimeofday({1154084258, 541628}, NULL) = 0
  gettimeofday({1154084258, 541724}, NULL) = 0
  .
  .
  
  Then
  
  ) = 31ng tag database... Donebase... Done\r", 31
  write(1, "\n", 1
  )                       = 1
  munmap(0xb5bb9000, 528384)              = 0
  mmap2(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 
= 0xb549b000
  mprotect(0xb549b000, 4096, PROT_NONE)   = 0
  clone(child_stack=0xb5c9b4e4, 
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID|CLONE_DETACHED,
 parent_tidptr=0xb5c9bbe8, {entry_number:6, base_addr:0xb5c9bba0, 
limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, 
seg_not_present:0, useable:1}, child_tidptr=0xb5c9bbe8) = 32512
  
  after this it starts to eat cpu time.

** Description changed:

-- 
aptitude upgrade stops and hogs cpu
https://launchpad.net/bugs/54342

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