Messages in this thread | | | From | Dirk Gouders <> | Subject | Re: [BUG] Bisected Problem with LSI PCI FC Adapter | Date | Thu, 04 Sep 2014 08:09:26 +0200 |
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Andreas Noever <andreas.noever@gmail.com> writes:
> On Wed, Sep 3, 2014 at 2:47 PM, Dirk Gouders <dirk@gouders.net> wrote: >> Andreas Noever <andreas.noever@gmail.com> writes: >> >>> On Wed, Sep 3, 2014 at 12:57 PM, Dirk Gouders <dirk@gouders.net> wrote: >>>> On a Tyan VX50 (B4985) I ran into problems when updating the kernel: the >>>> PCI FC Adapter is no longer recognized. >>> >>> Can you provide the output of lspci -vvv and the output of dmesg from >>> a working boot? Which card is the one that is not recognized? >> >> Sure, the card that disappeared is: >> >> 0a:00.0 Fibre Channel: LSI Logic / Symbios Logic FC949ES Fibre Channel Adapter (rev 02) > > As far as I can tell the following is happening: > The root bus resource window (advertised by the bios?) is to small: > pci_bus 0000:00: root bus resource [bus 00-07] > Previously we didn't really care. There is a resource conflict but we > ignored it: > pci_bus 0000:0a: busn_res: can not insert [bus 0a] under [bus 00-07] > (conflicts with (null) [bus 00-07]) > With the patch we mark the bridge as broken and reassign the bus to 06: > pci 0000:00:0e.0: bridge configuration invalid ([bus 0a-0a]), reconfiguring > pci 0000:00:0e.0: PCI bridge to [bus 06-07] > pci 0000:00:0e.0: bridge window [io 0x3000-0x3fff] > pci 0000:00:0e.0: bridge window [mem 0xd4200000-0xd42fffff] > pci_bus 0000:06: busn_res: [bus 06-07] end is updated to 06 > > We still scan for children but nothing shows up ("PCI bridge to" is > from pci_scan_child_bus -> pcibios_fixup_bus -> pci_read_bridge_base, > after pci_scan_slot). I have no idea why the device does not respond.
Please excuse my ignorance but a naive question:
__pci_setup_bridge() outputs the same text (exept for an additional string that is empty in this case) and I wonder how to say where it came from.
Anyway, please let me know if it would help that I activate more verbose messages with the working or problematic kernel. I will then risk to annoy the users with one more short downtime.
Dirk
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