partprobe crashes kernel with RIP sysfs_create_link called from add_partition and emcp module

Solution Verified - Updated -

Issue

  • Running /sbin/partprobe without any options sometimes causes a system crash with following error messages on the console:

    ----------- [cut here ] ---------
Kernel BUG at fs/sysfs/symlink.c:88
invalid opcode: 0000 [1] SMP 
last sysfs file: /block/sdaw/size
[...]        
Code: 0f 0b 68 eb 06 2c 80 c2 58 00 eb fe 49 8b 7d 10 bd ef ff ff 
RIP  [<ffffffff80112670>] sysfs_create_link+0x2f/0x11b
 RSP <ffff81079fe8f918>
[...]

Environment

  • Red Hat Enterprise Linux 5.7
  • EMC PowerPath

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