Re: panics with 16port Promise Supertrack EX Controller

[Michal Piotrowski]

Hi Flavio,

On 09/07/07, Flavio Curti <lists.fcu@xxxxxxxxxx> wrote:
> Hello
>
> I have a problem with a server running 2.6.22rc4.

Jul  8 00:19:13 dorade.cyberlink.ch EFLAGS: 00210046   (2.6.22-rc7-dorade #1)

Is this a regression?

> The machine panics
> after some days of running fine, the machine inst heavy loaded.
>
> The Controller detects as stex device:
>
> scsi0 : stex
> scsi 0:0:0:0: Direct-Access Promise 1X2 Mirror      1.10 PQ: 0 ANSI: 3
> scsi 0:0:2:0: Direct-Access Promise  12+2 Disk RAID6  1.10 PQ: 0 ANSI: 3
> scsi 0:0:16:0: Processor Promise RAID Console     1.00 PQ: 0 ANSI: 3
> sd 0:0:0:0: [sda] 976642048 512-byte hardware sectors (500041 MB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> sd 0:0:0:0: [sda] 976642048 512-byte hardware sectors (500041 MB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>  sda: sda1 sda2
> sd 0:0:0:0: [sda] Attached SCSI disk
> sd 0:0:2:0: [sdb] Very big device.  Trying to use READ CAPACITY(16).
> sd 0:0:2:0: [sdb] 11719704576 512-byte hardware sectors (6000489 MB)
> sd 0:0:2:0: [sdb] Write Protect is off
> sd 0:0:2:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> sd 0:0:2:0: [sdb] Very big device.  Trying to use READ CAPACITY(16).
> sd 0:0:2:0: [sdb] 11719704576 512-byte hardware sectors (6000489 MB)
> sd 0:0:2:0: [sdb] Write Protect is off
> sd 0:0:2:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>  sdb: sdb1
> sd 0:0:2:0: [sdb] Attached SCSI disk
> sd 0:0:0:0: Attached scsi generic sg0 type 0
> sd 0:0:2:0: Attached scsi generic sg1 type 0
> scsi 0:0:16:0: Attached scsi generic sg2 type 3
>
> Im not sure where the problem is (controller/lvm/ext3), so if anyone has
> an idea, Im happy to try it out...

kernel BUG at block/as-iosched.c:1084!

BUG_ON(RB_EMPTY_ROOT(&ad->sort_list[REQ_ASYNC]));

> Thank you
>
> Flavio Curti
>
> --
> http://no-way.org/~fcu/

Regards,
Michal

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