James Bottomley wrote: > On Tue, 2008-07-08 at 01:47 +0530, Kamalesh Babulal wrote: >> James Bottomley wrote: >>> On Thu, 2008-06-26 at 15:38 -0500, David Teigland wrote: >>>> On Wed, Mar 26, 2008 at 12:14:00PM +0530, Kamalesh Babulal wrote: >>>>> Hi Stephen, >>>>> >>>>> Kernel bug is hit while booting up the next-20080325 kernel with MPT >>>>> Fusion driver built in.This was reported previously for the >>>>> next-20080320 kernel >>>>> http://marc.info/?l=linux-next&m=120601013920868&w=2 >>>> Hi, did you ever get this fixed? I've been having the same problem, >>>> http://marc.info/?l=linux-scsi&m=121061780821823&w=4 >>>> still exists on 2.6.26-rc8 for me, >>>> >>>> Loading scsi_transport_spi.ko module >>>> Loading mptscsih.ko module >>>> Loading mptspi.ko module >>>> Fusion MPT SPI Host driver 3.04.06 >>>> ACPI: PCI Interrupt 0000:86:01.0[A] -> GSI 32 (level, low) -> IRQ 32 >>>> mptbase: ioc0: Initiating bringup >>>> ioc0: LSI53C1030 B2: Capabilities={Initiator,Target} >>>> mptbase: ioc0: PCI-MSI enabled >>> I speculate that this might be related to the problem. The fusion >>> driver was recently flipped to default to MSI enable (previously it had >>> disabled them). Could you boot it with the fusion module parameter >>> >>> mpt_msi_enable=0 >>> >>> if it actually boots that will be a good confirmation that MSI is to >>> blame. >>> >>>> mptbase: ioc0: Initiating recovery >>> This I suspect is because of a lost interrupt. >>> >>>> BUG: unable to handle kernel NULL pointer dereference at 0000000000000948 >>> And this one looks to be a second bug: The MSI fault path is actually >>> causing this oops. >>> >>> James >>> >> Hi James, >> >> Kernel Bug is still reproducible with 2.6.26-rc9-git1 kernel, I tried booting with mpt_msi_enable=0 >> as boot paramenter, but the call trace remains the same >> >> oading mptbase.ko module[ 6.766853] Fusion MPT base driver 3.04.06 >> >> [ 6.783482] Copyright (c) 1999-2007 LSI Corporation >> Loading mptscsih.ko module >> Loading mptspi.ko module >> [ 6.813157] Fusion MPT SPI Host driver 3.04.06 >> [ 6.827369] ACPI: PCI Interrupt 0000:01:01.0[A] -> GSI 22 (level, low) -> IRQ 22 >> [ 6.850624] mptbase: ioc0: Initiating bringup >> [ 6.985601] ioc0: LSI53C1030 B2: Capabilities={Initiator} >> [ 7.002711] mptbase: ioc0: PCI-MSI enabled > ^^^^^^^^^^^^^^^ > > If you had successfully specified mpt_msi_enable=0 this line wouldn't > appear. > > My best guess is that you incorrectly specified it as a kernel command > line parameter rather than a module parameter. > > James > Hi James, Sorry my fault :(, the kernel bug is not reproducible after disabling it. -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
