Lars Marowsky-Bree wrote:
On 2004-10-25T11:38:43, christophe.varoqui@xxxxxxx wrote:
In fact all the sg stuff I use is done with the SG_IO ioctl (see libcheckers/*.c) But somehow, it doesn't work as expected. I don't remember how exactly it failed in my tests but it did ... I remembered receiving bad path status and experiencing blocked checkers.
Can you please clarify the error you saw? I didn't experience that yet with the SG_IO ioctl().
I think it was because of this bug http://marc.theaimsgroup.com/?l=linux-scsi&m=108617935710955&w=2
If you are using qla2xxx and you unplug the cable, the qlogic driver will return did_not_connect in the host byte. If you used the block layer sg io code you will then not get the host bytes returned to you, and the checker will always think the patch is back up.
Sincerely, Lars Marowsky-Brée <lmb@xxxxxxx>
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