Re: 2.6.19-rc3: known unfixed regressions (v3)

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Quoting r. Jun'ichi Nomura <[email protected]>:
> Subject: Re: 2.6.19-rc3: known unfixed regressions (v3)
> 
> Hi Michael,
> 
>  > 2.6.19-rc3 without reverting
>  > d7dd8fd9557840162b724a8ac1366dd78a12dff stops receiving ACPI events after some
>  > use (sometimes after suspend/resume, sometimes after kernel build stress).  Now,
>  > what does this tell us? Andrew, any idea?
> 
> The code is related to bd_claim_by_disk which is called when
> device-mapper or md tries to mark the underlying devices
> for exclusive use and creates symlinks from/to the devices
> in sysfs. The patch added error handlings which weren't in
> the original code.
> 
> I have no idea how it affects ACPI event handling.

It's a mystery. Probably exposes a bug somewhere?

> Are you using dm and/or md on your machine?

The .config is attached to bugzilla.

> Have you seen any unusual kernel messages or symptoms regarding
> dm/md before the ACPI problem occurs?

I haven't.

-- 
MST
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