Messages in this thread | | | Date | Mon, 16 May 2011 21:34:50 +0200 | From | Christian Hoffmann <> | Subject | Re: Long timeout when booting >= 2.6.38 |
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> > Nothing to be sorry about. Thanks for providing the information. If I > decoded the problem correctly then this just unearthed a real long > standing bug. Does the patch below solve the problem ? > > Thanks, > > tglx > > --- linux-2.6.orig/kernel/time/tick-broadcast.c > +++ linux-2.6/kernel/time/tick-broadcast.c > @@ -522,10 +522,11 @@ static void tick_broadcast_init_next_eve > */ > void tick_broadcast_setup_oneshot(struct clock_event_device *bc) > { > + int cpu = smp_processor_id(); > + > /* Set it up only once ! */ > if (bc->event_handler != tick_handle_oneshot_broadcast) { > int was_periodic = bc->mode == CLOCK_EVT_MODE_PERIODIC; > - int cpu = smp_processor_id(); > > bc->event_handler = tick_handle_oneshot_broadcast; > clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT); > @@ -551,6 +552,15 @@ void tick_broadcast_setup_oneshot(struct > tick_broadcast_set_event(tick_next_period, 1); > } else > bc->next_event.tv64 = KTIME_MAX; > + } else { > + /* > + * The first cpu which switches to oneshot mode sets > + * the bit for all other cpus which are in the general > + * (periodic) broadcast mask. So the bit is set and > + * would prevent the first broadcast enter after this > + * to program the bc device. > + */ > + tick_broadcast_clear_oneshot(cpu); > } > } >
Hi,
I booted a couple of times now, and the problem seems solved.
[ 1.423793] TCP reno registered [ 1.423805] UDP hash table entries: 4096 (order: 5, 131072 bytes) [ 1.423847] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes) [ 1.423944] NET: Registered protocol family 1 [ 1.423953] pci 0000:00:01.0: MSI quirk detected; subordinate MSI disabled [ 2.300205] pci 0000:01:05.0: Boot video device [ 2.300218] PCI: CLS 64 bytes, default 64 [ 2.300262] Trying to unpack rootfs image as initramfs... [ 2.438632] Freeing initrd memory: 10540k freed [ 2.442368] PCI-DMA: Disabling AGP. [ 2.442501] PCI-DMA: aperture base @ c0000000 size 65536 KB [ 2.442503] PCI-DMA: using GART IOMMU. [ 2.442505] PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture [ 2.446264] audit: initializing netlink socket (disabled)
Thanks a lot!!!
Kind regards, Chris
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