Miller, Mike (OS Dev) wrote: > > >> -----Original Message----- >> From: Hannes Reinecke [mailto:hare@xxxxxxx] >> Sent: Tuesday, May 29, 2007 7:01 AM >> To: Miller, Mike (OS Dev); SCSI Mailing List >> Subject: cciss broken with 2.6.22-rc2 >> >> Hi Mike, >> >> with the latest git snapshot the cciss driver hangs during >> initialisation. Enabling debug output I get: >> >> cciss0: <0x3230> at PCI 0000:06:00.0 IRQ 4338 using DAC >> Sending cff0000 - down to controller >> cciss: FIFO Empty read >> cciss: Read cff00000 back from board >> Sending cff0000 - down to controller >> cciss: FIFO Empty read >> cciss: Read cff00002 back from board >> LUN Data >> -------------------------- >> Sending cff0000 - down to controller >> cciss: FIFO Empty read >> cciss: Read cff00000 back from board >> blocks= 286677120 block_size= 512 >> Sending cff0000 - down to controller >> cciss: FIFO Empty read >> cciss: Read cff00002 back from board >> heads=255, sectors=32, cylinders=35132 >> >> Sending 5103000 - down to controller >> >> and then the machine hangs. >> I'll try to investigate, but as I'm no expert in cciss my >> results might be limited. >> Looks like one of your recent fixes broke it; 2.6.21 worked fine. > > Hannes, > Actually, it was someone else who broke the driver by making changes > in msi.c. This patch fixes the hang: > > From: "Mike Miller (OS Dev)" <mikem@xxxxxxxxxxxxxxxxxxxxxxx> writes: > > Found what seems the problem with our vectors being listed backward. > In drivers/pci/msi.c we should be using list_add_tail rather than > list_add to preserve the ordering across various kernels. Please > consider this for inclusion. > > Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> > > diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 0e67723..d74975d 100644 [ .. ] > > We found and fixed these late last week. So I hope they make into Linus' git tree ASAP. Yes, these patches work. Thanks, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Markus Rex, HRB 16746 (AG Nürnberg) - 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
