I/O and machine hangs after loading SCSI Qlogic qioctlmod.ko ioctl device driver on RHEL4
Issue
- I/O and/or machine hangs when userspace monitoring software uses a SCSI ioctl driver.
- Sudden high load or IO wait, system unresponsive
Environment
- Red Hat Enterprise Linux 4.8
- Note that Red Hat Enterprise Linux 5 (and later) is specifically not affected.
- Qlogic HBA
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.
