Re: Kernel crash with lspci -vv and SAS Controller LSI Logic / SymbiosLogic MegaRAID SAS 9240

From: stepping stone GmbH
Date: Thu Jul 19 2012 - 10:17:55 EST


Dear Adam

It did not work (exact same behaviour) with a newer kernel (3.5-rc7). The problem was the firmware. After a upgrade it works; with older kernels too. Great thanks and sorry to bother you (all).

Greetings

David

Am 19.07.2012 02:39, schrieb adam radford:
On 7/18/12, stepping stone GmbH <support@xxxxxxxxxxxxxxxxx> wrote:
...
a tail of lspci -vv http://pastebin.com/kjh8ig9q

PCI Config reads from lspci -vvv don't go through the megaraid_sas
driver itself.

It looks like your system hung up while trying to do a PCI Config read
of Capabilities 0xd0: VPD (Vital Product Data).

I have a 9240 controller, and with kernel 3.5.0-rc1, I can do lspci -vvv :

Capabilities: [d0] Vital Product Data
Unknown small resource type 00, will not decode more.
Capabilities: [a8] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [c0] MSI-X: Enable+ Count=15 Masked-
Vector table: BAR=1 offset=00002000
PBA: BAR=1 offset=00003800
Capabilities: [100] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt-
UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [138] Power Budgeting <?>
Kernel driver in use: megaraid_sas
Kernel modules: megaraid_sas

Can you reproduce with kernel 3.5.0-rcX ? I would also try upgrading
your controller firmware.

-Adam

--
stepping stone GmbH
Neufeldstrasse 9
CH-3012 Bern

Telefon: +41 31 332 53 63
www.stepping-stone.ch
support@xxxxxxxxxxxxxxxxx

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/