Date: Tue, 28 Mar 2000 10:13:40 -0500 From: Doug Ledford <dledford@redhat.com> To: Robert Stuart <rstu@qbssss.edu.au> Cc: aic7xxx@FreeBSD.ORG Subject: Re: enable_irq() unbalanced messages on boot Message-ID: <38E0CC24.1DCDC387@redhat.com> References: <38E05EB5.6FF3CA44@bssssq.edu.au>
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Robert Stuart wrote:
>
> Hi,
>
> I'm wondering what the enable_irq() message lines below mean. They are
> generated on booting the machine from a newly built kernel 2.2.14. I'm
> using RH6.1
The enable_irq unbalanced messages are harmless. It just means that when the
driver called disable_irq there were no devices already using the irq, and as
such it was already disabled, so the call to disable_irq was forgotten by the
kernel, so when we call enable_irq the core kernel code thinks it's unbalanced
when it isn't.
> This machine BTW has problems booting from the SCSI drives with lilo.
> It starts loading initrd/vmlinuz (I can't remember which) indicated by
> dots, and then stops and eventuall gives an error code indicating 0x80
> ("Disk timeout").
Sounds like disk problems more than anything else. I would go into the SCSI
BIOS area of the Adaptec controller, into the Disk Utilities, and run the
Verify Media command to make the disk remap any bad sectors.
> The machine is using two Adaptec 2940U2W cards. I believe I have
> termination right.
>
> Thanks in advance.
>
> (scsi0) <Adaptec AHA-294X Ultra2 SCSI host adapter> found at PCI 0/10/0
> (scsi0) Wide Channel, SCSI ID=7, 32/255 SCBs
> (scsi0) Downloading sequencer code... 396 instructions downloaded
> enable_irq() unbalanced from d0828b0e
> (scsi1) <Adaptec AHA-294X Ultra2 SCSI host adapter> found at PCI 0/11/0
> (scsi1) Wide Channel, SCSI ID=7, 32/255 SCBs
> (scsi1) Downloading sequencer code... 396 instructions downloaded
> enable_irq() unbalanced from d0828b0e
> scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.28/3.2.4
> <Adaptec AHA-294X Ultra2 SCSI host adapter>
> scsi1 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.28/3.2.4
> <Adaptec AHA-294X Ultra2 SCSI host adapter>
> scsi : 2 hosts.
> (scsi0:0:0:0) Synchronous at 40.0 Mbyte/sec, offset 31.
> Vendor: QUANTUM Model: XP39100W Rev: LXY4
> Type: Direct-Access ANSI SCSI revision: 02
> Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
> (scsi1:0:0:0) Synchronous at 40.0 Mbyte/sec, offset 31.
> Vendor: QUANTUM Model: XP39100W Rev: LXY4
> Type: Direct-Access ANSI SCSI revision: 02
> Detected scsi disk sdb at scsi1, channel 0, id 0, lun 0
> Vendor: IMS Model: CDD522/10 Rev: 1.06
> Type: WORM ANSI SCSI revision: 01
> SCSI device sda: hdwr sector= 512 bytes. Sectors= 17781520 [8682 MB]
> [8.7 GB]
> sda: sda1 sda2 < sda5 > sda3
> SCSI device sdb: hdwr sector= 512 bytes. Sectors= 17781520 [8682 MB]
> [8.7 GB]
> sdb: sdb1 < sdb5 sdb6 > sdb3
>
> Robert Stuart
> Qld Board of Senior Secondary School Studies
> ph: 3864 0364
>
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--
Doug Ledford <dledford@redhat.com> http://people.redhat.com/dledford
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