From: Juliusz Chroboczek <jch@pps.jussieu.fr>
To: linux-kernel@vger.kernel.org
Subject: 2.4.22 regression: ide-scsi no longer likes broken hardware
Date: 09 Oct 2003 02:03:26 +0200 [thread overview]
Message-ID: <tpoewrb7ld.fsf@lanthane.pps.jussieu.fr> (raw)
IDE chipset is Intel Corp. 82801DB ICH4 IDE (rev 01).
Both the CD-ROM on hdc and the CD-RW on hdd are broken, but work
flawlessly under 2.4.20. According to cdrecord, they are:
hdc: 'E-IDE ' 'CD-ROM 56X/AKH ' 'A8E ' Removable CD-ROM
hdd: 'AOPEN ' 'CD-RW CRW4048 ' '1.05' Removable CD-ROM
Both work under 2.4.22 as IDE devices.
Putting ide-scsi over hdc under 2.4.22 leads to a silent hang during
boot (just after the friendly ``ide-cd: passing drive...'' message).
With ide-scsi over hdd, on the other hand, the kernel gets into a loop
reporting that ``the scsi wants to send us more data than expected''.
I am sorry I didn't write the log down, I'll be glad to do that if
anyone thinks it can help.
In either case, a cold boot is necessary.
As an additional data point, cdrecord has the following complaints
about the drives:
hdc: cdrecord.mmap: Warning: controller returns wrong size for CD capabilities page.
hdd: cdrecord.mmap: WARNING: Drive returns wrong startsec (0) using -150
I do realise that this is probably broken hardware. However, 2.4.20
shows that it is possible to make it work, and I'm wondering what
happened that made 2.4.22 picky.
Juliusz Chroboczek
reply other threads:[~2003-10-09 0:03 UTC|newest]
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