Description of problem: I/O hang encountered during overnight I/O test with induced path failures on RHEL 3.0 v2.4.21-15.0.3.EL I/O load consisted of: - copy/remove of files to/from three mounted PowerPath devices - one write dd process to a fourth pseudo device Path failures consisted of (interleaving): - initiator-side port failures - target-side port failures It looks as though there is a bug in the scsi_request_fn function in drivers/scsi_lib.c around line number 1060. There should be a call to blkdev_release request, in the case of init_cmnd failure. When the sd driver fails the init_command callout, the scsi driver does not release the request, causing a request leak. Eventually, the PowerPath code will go to requeue a request in emcp_requeue(), and will wait forever. Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
*** This bug has been marked as a duplicate of 119771 ***
An errata has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2004-433.html