Re: [RFC][PATCH] sched_clock_cpu()

From: Dhaval Giani
Date: Sun May 04 2008 - 00:38:53 EST


On Sat, May 03, 2008 at 11:00:23PM +0530, Dhaval Giani wrote:
> On Sat, May 03, 2008 at 06:55:11PM +0200, Ingo Molnar wrote:
> >
> > * Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote:
> >
> > > it _DOESN'T_ boot ;-/ [...]
> >
> > FYI, the merged version against sched-devel.git does boot fine here and
> > the clock does seem to advance as expected.
> >
>
> boots here against linus as well.
>

Unrelated, it hits this as well,


21.964266] ------------[ cut here ]------------
[ 21.978124] WARNING: at include/linux/blkdev.h:431 blk_queue_init_tags+0x114/0x158()
[ 22.013319] Modules linked in:
[ 22.022518] Pid: 1, comm: swapper Not tainted 2.6.25 #1
[ 22.042741] [<c012601f>] warn_on_slowpath+0x41/0x5f
[ 22.057667] [<c012e2dc>] ? run_timer_softirq+0x158/0x160
[ 22.073948] [<c017ade7>] ? cache_alloc_refill+0x17f/0x1de
[ 22.090485] [<c014119a>] ? __lock_release+0x1e/0x51
[ 22.105463] [<c0179c47>] ? check_poison_obj+0x2a/0x17b
[ 22.121219] [<c017ade7>] ? cache_alloc_refill+0x17f/0x1de
[ 22.137760] [<c0179aa4>] ? poison_obj+0x1e/0x3b
[ 22.151698] [<c0179650>] ? dbg_redzone1+0x15/0x1c
[ 22.166157] [<c017af76>] ? cache_alloc_debugcheck_after+0x130/0x150
[ 22.187398] [<c017b3c5>] ? __kmalloc+0x100/0x122
[ 22.201595] [<c023b103>] ? init_tag_map+0x64/0x8b
[ 22.216055] [<c023b103>] ? init_tag_map+0x64/0x8b
[ 22.230510] [<c023b154>] ? __blk_queue_init_tags+0x2a/0x4e
[ 22.247311] [<c023b29a>] blk_queue_init_tags+0x114/0x158
[ 22.263537] [<c032d6eb>] ahc_platform_set_tags+0x130/0x17e
[ 22.280284] [<c032d82d>] ahc_linux_device_queue_depth+0x7f/0xdf
[ 22.300205] [<c0315d41>] ? scsi_add_lun+0x1f8/0x326
[ 22.316370] [<c032cb2b>] ahc_linux_slave_configure+0x36/0x53
[ 22.335450] [<c0315e24>] scsi_add_lun+0x2db/0x326
[ 22.349856] [<c0315fe1>] scsi_probe_and_add_lun+0x172/0x204
[ 22.367268] [<c03166e0>] __scsi_scan_target+0x86/0xcc
[ 22.382713] [<c03167f9>] scsi_scan_channel+0x3f/0x5e
[ 22.397898] [<c0316890>] scsi_scan_host_selected+0x78/0xa9
[ 22.414645] [<c0316b5c>] do_scsi_scan_host+0x5a/0x63
[ 22.429830] [<c0316bb2>] scsi_scan_host+0x33/0x75
[ 22.444235] [<c032d298>] ahc_linux_register_host+0x190/0x19a
[ 22.461503] [<c0253982>] ? pci_get_slot+0x61/0x68
[ 22.475961] [<c0245a56>] ? kobject_put+0x3c/0x41
[ 22.490158] [<c02c388f>] ? put_device+0x11/0x13
[ 22.504095] [<c025377d>] ? pci_dev_put+0xf/0x12
[ 22.518034] [<c032f9d1>] ahc_linux_pci_dev_probe+0x15a/0x164
[ 22.536537] [<c025349f>] ? pci_match_device+0x8c/0x9b
[ 22.552702] [<c014119a>] ? __lock_release+0x1e/0x51
[ 22.569672] [<c025349f>] ? pci_match_device+0x8c/0x9b
[ 22.584871] [<c0412ec8>] ? _spin_unlock+0x27/0x3c
[ 22.599306] [<c02534bb>] pci_call_probe+0xd/0x10
[ 22.613429] [<c02534ef>] __pci_device_probe+0x31/0x43
[ 22.628848] [<c0253522>] pci_device_probe+0x21/0x34
[ 22.643750] [<c02c53cc>] really_probe+0x74/0xf2
[ 22.657634] [<c02c5494>] driver_probe_device+0x37/0x40
[ 22.673340] [<c02c5549>] __driver_attach+0x3d/0x5f
[ 22.688007] [<c02c47f5>] bus_for_each_dev+0x38/0x5d
[ 22.702933] [<c0245795>] ? kobject_init_and_add+0x20/0x22
[ 22.723240] [<c02c557f>] driver_attach+0x14/0x16
[ 22.737433] [<c02c550c>] ? __driver_attach+0x0/0x5f
[ 22.752410] [<c02c4dc0>] bus_add_driver+0x99/0x149
[ 22.767077] [<c02c5912>] driver_register+0x69/0x8d
[ 22.781955] [<c02536d0>] __pci_register_driver+0x40/0x61
[ 22.798179] [<c05d485e>] ? kernel_init+0x0/0x93
[ 22.812119] [<c032fac0>] ahc_linux_pci_init+0x14/0x16
[ 22.827565] [<c05ef704>] ahc_linux_init+0x58/0x5c
[ 22.841982] [<c05d4737>] do_initcalls+0x59/0x131
[ 22.856142] [<c01af795>] ? create_proc_entry+0x67/0x7b
[ 22.871900] [<c0159447>] ? register_irq_proc+0xa4/0xba
[ 22.887656] [<c01a0000>] ? bio_copy_kern_endio+0x6c/0xa1
[ 22.903935] [<c05d485e>] ? kernel_init+0x0/0x93
[ 22.917872] [<c05d482b>] do_basic_setup+0x1c/0x1e
[ 22.932275] [<c05d48b6>] kernel_init+0x58/0x93
[ 22.945902] [<c010463f>] kernel_thread_helper+0x7/0x10
[ 22.961606] =======================
[ 22.973591] ---[ end trace 441bd607bde65755 ]---

--
regards,
Dhaval
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