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Bug#1107142: linux-image-6.12.27-amd64: mpt3sas LSI SAS2008 [1000:0072] probe failure - BAR 1 reservation error



Control: forwarded -1 [🔎] sfjmooeo4rjqwbf4equggtn3st5tyzgup5vjmnmulqwomkfhlb@tqzt52d7r5gp">https://lore.kernel.org/linux-pci/[🔎] sfjmooeo4rjqwbf4equggtn3st5tyzgup5vjmnmulqwomkfhlb@tqzt52d7r5gp
Control: tag -1 + moreinfo

Hello,

[expanding the audience to include upstream and mark the bug as
forwarded accordingly]

On Sat, Jun 21, 2025 at 01:13:48PM -0400, last.ocean8435@goose.ws wrote:
> Sorry for the late reply, I've been out of the country and just returned home.
> 
> > Can you try booting 6.12.27-amd64 passing the kernel boot option pci=realloc=off?
> 
> Upon returning home, I found a newer kernel available, 6.12.32-amd64. I installed that and rebooted with kernel boot options:
> 
> GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
> 
> The bug was still present on kernel 6.12.32-amd64, none of my SAS drives attached via my LSI card were coming up. I edited the boot options to:
> 
> GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pci=realloc=off"
> 
> And that appears to have fixed it. My SAS drives are now showing up and I can interact with them as normal.

Can you please additionally add

	dyndbg="file drivers/pci/* +p"

to the cmdline and provide the complete output of `dmesg` with and
without passing pci=realloc=off?

Thanks
Uwe

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