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Every so often, the driver will call asd_clear_nexus to clean out a task. It is supposed to be the case that the CLEAR NEXUS does not go on the done list until after the task itself has been put on the done list, but for some reason this doesn't always happen. Thus, the wait_for_completion_timeout call times out, and we return success. This makes libsas free the task even though the task hasn't completed, leading to a BUG_ON message from aic94xx_hwi.c around line 341. We should return failure from asd_clear_nexus so that libsas tries again; at a bare minimum it shouldn't be freeing active tasks. I _think_ this will fix one of the SCB timeout crash problems (though I've not been able to reproduce it lately...) Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> |
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| .. | ||
| aic94xx_dev.c | ||
| aic94xx_dump.c | ||
| aic94xx_dump.h | ||
| aic94xx_hwi.c | ||
| aic94xx_hwi.h | ||
| aic94xx_init.c | ||
| aic94xx_reg_def.h | ||
| aic94xx_reg.c | ||
| aic94xx_reg.h | ||
| aic94xx_sas.h | ||
| aic94xx_scb.c | ||
| aic94xx_sds.c | ||
| aic94xx_seq.c | ||
| aic94xx_seq.h | ||
| aic94xx_task.c | ||
| aic94xx_tmf.c | ||
| aic94xx.h | ||
| Kconfig | ||
| Makefile | ||