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System hangs after SATA hardware anomaly

This document (3741314) is provided subject to the disclaimer at the end of this document.

Environment

Novell SUSE Linux Enterprise Server 9 (SLES9)
Novell Linux Desktop 9 (NLD9)

x86_64 architecture (AMD 64-bit or Intel EM64T)
SATA (serial ATA) storage
Kernel version prior to 2.6.5-7.276

Situation

System hangs on disk I/O, with messages similar to the following ERROR:
Aug 17 08:09:25 cfd8 kernel: ATA: abnormal status 0xD0 on port 0xFFFFFF000201911C

Resolution

Update the kernel.

This issue has been fixed as of kernel 2.6.5-7.276 (from patch-11117) and the fix is included in SLES9 Service Pack 4 and NLD9 Service Pack 4.

Additional Information

This issue is caused by a limitation of the error recovery implemented in the libata driver in older SLES9 kernels. When a hardware anomaly occurs with SATA storage, the libata error handler had no way to reset the device. The result was that the timeout handler could continue to run indefinitely, unable to recover the device, and eventually could hang the system.

Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:3741314
  • Creation Date:05-FEB-08
  • Modified Date:27-APR-12
    • SUSESUSE Linux Enterprise Server

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