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Message-ID: <1341204649.2588.29.camel@pasglop> Date: Mon, 02 Jul 2012 14:50:49 +1000 From: Benjamin Herrenschmidt <benh@...nel.crashing.org> To: Christian Kujau <lists@...dbynature.de> Cc: linuxppc-dev@...ts.ozlabs.org, LKML <linux-kernel@...r.kernel.org> Subject: Re: 3.5.0-rc5: BUG: soft lockup - CPU#0 stuck for 22s On Sun, 2012-07-01 at 00:18 -0700, Christian Kujau wrote: > Hi, > > while trying to upgrade from 3.4.0 to 3.5.0-rc5 on this Powerbook G4 > (powerpc 32 bit), this happens during booting: > > -------------- > usb 2-1: new full-speed USB device number 4 using ohci_hcd > SCSI subsystem initialized > scsi0 : SBP-2 IEEE-1394 > scsi1 : SBP-2 IEEE-1394 > firewire_sbp2 fw1.0: logged in to LUN 0000 (0 retries) > scsi 0:0:0:0: Direct-Access Ext Hard Disk PQ: 0 ANSI: 4 Interesting... I observed something roughly similar on a dual G4 the other day associated with a 30s to 1mn pause during boot. RCU was complaining loudly. In my case, it did continue booting normally, is that the case for you ? Also if I compile the kernel without CONFIG_SMP, it did go away as well, do you observe that too ? I don't have a spare cycle to investigate this problem this week I'm afraid, it might help if you could try a bisection though. Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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