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centos6:illegal-instruction-bug-fix-centos-6 [2016-11-16 11:03:07] (current)
rory.blanchard created
Line 1: Line 1:
 +====== Illegal Instruction CentOS 6 Bug Fix ======
  
 +When updating yum or trying to install new packages or regular updates on a CentOS 6 system, you may run into an error like the following:
 +
 +<​code>​
 +root@server [~]# yum update
 +Freeing read locks for locker 0x5: 425388/​140510239045376
 +Freeing read locks for locker 0x7: 425388/​140510239045376
 +Freeing read locks for locker 0x8: 425388/​140510239045376
 +Freeing read locks for locker 0x15: 425388/​140510239045376
 +Freeing read locks for locker 0x17: 425388/​140510239045376
 +Loaded plugins: fastestmirror,​ rhnplugin
 +Setting up Update Process
 +Determining fastest mirrors
 +Illegal instruction
 +</​code>​
 +
 +This is likely caused by a known bug in the nss-softokn package as described here: [[https://​bugs.centos.org/​view.php?​id=10930]]
 +
 +To resolve this, simply run the following command:
 +
 +<​code>​
 +export NSS_DISABLE_HW_AES=1;​ yum upgrade
 +</​code>​
 +
 +Once you have updated that package as part of the yum upgrade, the bug will be patched and you won't see it again.
 +\\
 +\\