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Date: Tue, 17 May 2005 12:43:07 +0530
From: Dinakar Guniguntala <dino@in.ibm.com>
To: =?iso-8859-1?Q?Gr=E9goire?= Favre <gregoire.favre@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: What breaks aic7xxx in post 2.6.12-rc2 ?
Message-ID: <20050517071307.GA4794@in.ibm.com>
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References: <20050516085832.GA9558@gmail.com>
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Here's a me too report. 

This is controller that I have

00:0e.0 SCSI storage controller: Adaptec AIC-7896U2/7897U2

I never used to get warning such as "refuses WIDE negotiation"
in kernels prior to 2.6.12-rc3-mm3.
The machine (x86) boots up fine though.

Here's the relevant dmesg output from 2.6.12-rc4-mm1

======================================================================

scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
        <Adaptec aic7896/97 Ultra2 SCSI adapter>
        aic7896/97: Ultra2 Wide Channel B, SCSI Id=7, 32/253 SCBs

  Vendor: IBM-PSG   Model: ST39103LC     !#  Rev: B227
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi0:A:0:0: Tagged Queuing enabled.  Depth 32
 target0:0:0: Beginning Domain Validation
WIDTH IS 1
(scsi0:A:0): 6.600MB/s transfers (16bit)
 target0:0:0: Domain Validation skipping write tests
(scsi0:A:0): 80.000MB/s transfers (40.000MHz, offset 15, 16bit)
 target0:0:0: Ending Domain Validation
  Vendor: IBM-PSG   Model: ST39103LC     !#  Rev: B227
  Type:   Direct-Access                      ANSI SCSI revision: 02
scsi0:A:1:0: Tagged Queuing enabled.  Depth 32
 target0:0:1: Beginning Domain Validation
WIDTH IS 1
(scsi0:A:1): 6.600MB/s transfers (16bit)
 target0:0:1: Domain Validation skipping write tests
(scsi0:A:1): 80.000MB/s transfers (40.000MHz, offset 15, 16bit)
 target0:0:1: Ending Domain Validation
(scsi0:A:15:0): refuses WIDE negotiation.  Using 8bit transfers   <============
scsi0:0:15:0: Attempting to queue an ABORT message
CDB: 0x12 0x0 0x0 0x0 0x36 0x0
scsi0: At time of recovery, card was not paused
>>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
scsi0: Dumping Card State in Data-in phase, at SEQADDR 0x85
Card was paused
ACCUM = 0x40, SINDEX = 0xa, DINDEX = 0xe4, ARG_2 = 0x0
HCNT = 0x36 SCBPTR = 0x0
SCSISIGI[0x46] ERROR[0x0] SCSIBUSL[0x3] LASTPHASE[0x40]
SCSISEQ[0x12] SBLKCTL[0xa] SCSIRATE[0x0] SEQCTL[0x10]
SEQ_FLAGS[0x20] SSTAT0[0x0] SSTAT1[0x2] SSTAT2[0x40]
SSTAT3[0x0] SIMODE0[0x8] SIMODE1[0xac] SXFRCTL0[0x80]
DFCNTRL[0x28] DFSTATUS[0x80]
STACK: 0x0 0x160 0x176 0x83
SCB count = 4
Kernel NEXTQSCB = 3
Card NEXTQSCB = 3
QINFIFO entries:
Waiting Queue entries:
Disconnected Queue entries:
QOUTFIFO entries:
Sequencer Free SCB List: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Sequencer SCB Info:
  0 SCB_CONTROL[0x40] SCB_SCSIID[0xf7] SCB_LUN[0x0] SCB_TAG[0x2]
  1 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
  2 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
  3 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
  4 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
  5 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
  6 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
  7 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
  8 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
  9 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 10 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 11 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 12 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 13 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 14 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 15 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 16 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 17 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 18 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 19 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 20 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 21 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 22 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 23 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 24 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 25 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 26 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 27 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 28 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 29 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 30 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
 31 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff] SCB_TAG[0xff]
Pending list:
  2 SCB_CONTROL[0x40] SCB_SCSIID[0xf7] SCB_LUN[0x0]
Kernel Free SCB list: 1 0
Untagged Q(15): 2
DevQ(0:0:0): 0 waiting
DevQ(0:1:0): 0 waiting
DevQ(0:15:0): 0 waiting

<<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>
scsi0:0:15:0: Device is active, asserting ATN
Recovery code sleeping
Recovery code awake
Timer Expired
aic7xxx_abort returns 0x2003
scsi0:0:15:0: Attempting to queue a TARGET RESET message
CDB: 0x12 0x0 0x0 0x0 0x36 0x0
aic7xxx_dev_reset returns 0x2003
Recovery SCB completes
(scsi0:A:15:0): refuses WIDE negotiation.  Using 8bit transfers
(scsi0:A:15:0): refuses WIDE negotiation.  Using 8bit transfers
scsi0:0:15:0: Attempting to queue an ABORT message
CDB: 0x12 0x0 0x0 0x0 0x36 0x0
scsi0: At time of recovery, card was not paused


======================================================================

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