From: Suparna Bhattacharya <suparna@in.ibm.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: linux-scsi@vger.kernel.org
Subject: Re: Some interesting results in the aic7xxx slowdown problem
Date: Fri, 19 Aug 2005 15:24:28 +0530 [thread overview]
Message-ID: <20050819095428.GA9130@in.ibm.com> (raw)
In-Reply-To: <1123166928.5026.8.camel@mulgrave>
James,
I finally got around to trying out 2.6.13-rc6 which (I think) includes the
AIC driver modifications to use block layer tagging. But it
looks like I'm out of luck -- the system doesn't even come up now.
This is what I see.
...
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 15
Starting balanced_irq
Using IPI Shortcut mode
VFS: Cannot open root device "sda6" or unknown-block(8,6)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,6)
Is this a known problem ? I do not get it if I configure the OLD aic driver
instead.
Some snippets from the scsi bootup messages :
...
scsi0:A:11:0: Tagged Queuing enabled. Depth 32
target0:0:11: Beginning Domain Validation
target0:0:11: wide asynchronous.
target0:0:11: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 63)
target0:0:11: Ending Domain Validation
target0:0:12: asynchronous.
Vendor: IBM-ESXS Model: ST318305LC !# Rev: B245
Type: Direct-Access
...
ACPI: PCI Interrupt 0000:00:01.1[A] -> GSI 17 (level, low) -> IRQ 17
scsi1 : 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
target1:0:0: asynchronous.
Vendor: IBM-ESXS Model: ST318305LC !# Rev: B245
Type: Direct-Access ANSI SCSI revision: 03
....
SCSI device sda: 35548320 512-byte hdwr sectors (18201 MB)
SCSI device sda: drive cache: write through
SCSI device sda: 35548320 512-byte hdwr sectors (18201 MB)
SCSI device sda: drive cache: write through
sda:
Attached scsi disk sda at scsi0, channel 0, id 9, lun 0
SCSI device sdb: 35548320 512-byte hdwr sectors (18201 MB)
....
Attached scsi generic sg0 at scsi0, channel 0, id 9, lun 0, type 0
Attached scsi generic sg1 at scsi0, channel 0, id 10, lun 0, type 0
...
Regards
Suparna
--
Suparna Bhattacharya (suparna@in.ibm.com)
Linux Technology Center
IBM Software Lab, India
next parent reply other threads:[~2005-08-19 9:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1123119347.5019.78.camel@mulgrave>
[not found] ` <20050804061809.GA4158@in.ibm.com>
[not found] ` <1123166928.5026.8.camel@mulgrave>
2005-08-19 9:54 ` Suparna Bhattacharya [this message]
2005-08-19 13:22 ` Some interesting results in the aic7xxx slowdown problem James Bottomley
2005-08-25 10:39 ` Suparna Bhattacharya
2005-08-29 15:21 ` James Bottomley
2005-08-30 4:49 ` Suparna Bhattacharya
2005-08-30 13:52 ` James Bottomley
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20050819095428.GA9130@in.ibm.com \
--to=suparna@in.ibm.com \
--cc=James.Bottomley@HansenPartnership.com \
--cc=linux-scsi@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.