Messages in this thread |  | | | Date | Thu, 21 Feb 2008 10:15:20 -0500 | | From | Mark Hounschell <> | | Subject | New 2.6.24.2 SG_IO SCSI problems |
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I seem to have run into some sort of regression in the SG_IO interface of 2.6.24.2. I have an application that up until 2.6.24 worked fine. The 2.6.23.16 kernel works fine.
During reads I get these kernel messages. Writes and other functions _seem_ OK. Actually basic reads are working. Its with large BC reads using an io_vec list that the problem shows up.
Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): data overrun detected in Data-in phase. Tag == 0x1. Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): Have seen Data Phase. Length = 256. NumSGs = 1. Feb 21 09:27:51 harley kernel: sg[0] - Addr 0x06256100 : Length 256 Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): data overrun detected in Data-in phase. Tag == 0x1. Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): Have seen Data Phase. Length = 256. NumSGs = 1. Feb 21 09:27:51 harley kernel: sg[0] - Addr 0x06256100 : Length 256 Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): data overrun detected in Data-in phase. Tag == 0x1. Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): Have seen Data Phase. Length = 256. NumSGs = 1. Feb 21 09:27:51 harley kernel: sg[0] - Addr 0x06256100 : Length 256 Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): data overrun detected in Data-in phase. Tag == 0x1. Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): Have seen Data Phase. Length = 256. NumSGs = 1. Feb 21 09:27:51 harley kernel: sg[0] - Addr 0x06256100 : Length 256 . . . . . .
The status elements of the sg_io_hdr_t structure used in the application returns status = 0x0 msg_status 0x0 host_status = 0x7 driver_status = 0x0
The hardware in use on this particular machine is an simple Adaptec AHA-2930CU talking to an old IMPRIMIS 94601-15 1.2GB disk drive.
Again, all this works fine with the 2.6.23.11 kernel
Any help would be appreciated
Regards Mark Hounschell
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