On Fri, 2008-06-06 at 06:07 +0000, Chris Clayton wrote: > On Friday 06 June 2008, Andrew Morton wrote: > > On Sun, 1 Jun 2008 04:15:05 +0000 Chris Clayton <chris2553@xxxxxxxxxxxxxx> > wrote: > > > Hi, > > > > > > I've just started testing 2.6.26 on my desktop machine and have found > > > that I get a long pause (20 seconds or so) as the system boots. By pause > > > I mean that the boot messages that normally scroll by stop doing so for, > > > as I say, about 20 seconds. > > > > > > I've done a bisect and arrived at: > > > > > > b0ed43360fdca227048d88a08290365cb681c1a8 is first bad commit > > > commit b0ed43360fdca227048d88a08290365cb681c1a8 > > > Author: Hannes Reinecke <hare@xxxxxxx> > > > Date: Tue Mar 18 14:32:28 2008 +0100 > > > > > > [SCSI] add scsi_host and scsi_target to scsi_bus > > > > > > This patch implements scsi_host and scsi_target device types > > > and adds both to the scsi_bus. > > > > > > Signed-off-by: Hannes Reinecke <hare@xxxxxxx> > > > Signed-off-by: Kay Sievers <kay.sievers@xxxxxxxx> > > > Signed-off-by: James Bottomley > > > <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> > > > > > > :040000 040000 4e3140909966b4c9aa987d34ee4078d283fe0351 > > > > > > 46e4fd28cc537ba700eb4f5652abf043fed4d76d M drivers > > > > > > The config file for that kernel is attached as are the kernel log for > > > booting that kernel and the bisect log. > > > > > > I've also noticed that it takes much longer for icons to appear on my > > > desktop when I plug a usb storage device in. (The icons are shown/hidden > > > by a simple sctript that is run via udev when the device is > > > attached/detached.) > > > > Do you believe that this is the same period? 20 seconds? > > > > Thanks for the reply, Andrew. I was beginning to think that I'd committed an > LKML sin :-) > > Yes, it is about the same. On 2.6.25.4 (and earlier), the icons appear within a > second or two, but with 2.6.26-rc2 or later, it takes about 20 seconds. I've > now built and installed -rc5 and am seeing the same behaviour. > > I've also built -rc5 on my laptop. On that my kernel uses the older IDE drivers > rather than libata. The boot proceeds with no pause, but I do see the same > delay in the desktop icons appearing when I attach a usb-storage device. > > > > Let me know of any way I can help solve this. > > > > > > Please cc me to any reply as I'm not subscribed. > > > > cc's added. > > > > Rafael, we might need to track this as a post-2.6.26 regression. It already is ... as I asked in the actual bug (but no-one seems to have noticed, so I assume the bug entry isn't set up correctly). Does this still persist with 2.6.26-rc5? The reason for asking is that it looks very much like a silent manifestation of our scsi_bus_uevent() problem that got fixed in 2.6.26-rc5. James -- 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
