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SubjectRe: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U9
Ingo Molnar wrote:
> i have released the -U9 Real-Time Preemption patch, which can be
> downloaded from:
>
> http://redhat.com/~mingo/realtime-preempt/
>

Finally a patch that I can get booted on my older SMP system at home
again. More correctly it is U9.2. I have been having problems with these
hanging after U5. Haven't had a ton of time to try to track down the
problems and didn't want to report problems without having done enough
troubleshooting. Anyway, I got this while booting U9.2.

kr

Oct 21 12:33:22 porky kernel: BUG: atomic counter underflow at:
Oct 21 12:33:22 porky kernel: [<c0254dd8>] qdisc_destroy+0x98/0xa0 (12)
Oct 21 12:33:22 porky kernel: [<c0254fed>] dev_shutdown+0x3d/0xa0 (16)
Oct 21 12:33:22 porky kernel: [<c024773b>] unregister_netdevice+0x13b/0x280 (28)
Oct 21 12:33:22 porky netfs: Mounting other filesystems: succeeded
Oct 21 12:33:22 porky kernel: [<c0112fb0>] mcount+0x14/0x18 (12)
Oct 21 12:33:22 porky kernel: [<e09a6160>] tulip_remove_one+0x0/0xa0 [tulip] (4)
Oct 21 12:33:22 porky kernel: [<c02058de>] unregister_netdev+0x1e/0x30 (24)
Oct 21 12:33:22 porky kernel: [<e09a618f>] tulip_remove_one+0x2f/0xa0 [tulip] (16)
Oct 21 12:33:22 porky kernel: [<c01f2907>] device_release_driver+0x67/0x70 (8)
Oct 21 12:33:22 porky kernel: [<c0112fb0>] mcount+0x14/0x18 (8)
Oct 21 12:33:22 porky kernel: [<c01c4e26>] pci_device_remove+0x76/0x80 (20)
Oct 21 12:33:22 porky kernel: [<c01f573b>] device_detach_shutdown+0xb/0x40 (12)
Oct 21 12:33:22 porky kernel: [<c01f2907>] device_release_driver+0x67/0x70 (12)
Oct 21 12:33:22 porky kernel: [<c01f293b>] driver_detach+0x2b/0x40 (24)
Oct 21 12:33:22 porky kernel: [<c01f2daf>] bus_remove_driver+0x3f/0x70 (20)
Oct 21 12:33:22 porky kernel: [<c01f32b9>] driver_unregister+0x19/0x30 (20)
Oct 21 12:33:22 porky kernel: [<c01c50cc>] pci_unregister_driver+0x1c/0x30 (16)
Oct 21 12:33:22 porky kernel: [<e09a7767>] tulip_cleanup+0x17/0x1b [tulip] (16)
Oct 21 12:33:22 porky kernel: [<c0139801>] sys_delete_module+0x121/0x150 (12)
Oct 21 12:33:22 porky kernel: [<c01531a1>] sys_munmap+0x51/0x60 (64)
Oct 21 12:33:22 porky kernel: [<c0116a20>] do_page_fault+0x0/0x660 (16)
Oct 21 12:33:22 porky kernel: [<c0106719>] sysenter_past_esp+0x52/0x71 (16)
Oct 21 12:33:22 porky kernel: preempt count: 00000001
Oct 21 12:33:22 porky kernel: . 1-level deep critical section nesting:
Oct 21 12:33:22 porky kernel: .. entry 1: print_traces+0x1d/0x60 / (dump_stack+0x23/0x30)
Oct 21 12:33:22 porky kernel:
Oct 21 12:33:22 porky kernel: tulip 0000:04:0a.0: Device was removed without properly calling pci_disable_device(). This may need fixing.
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