Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.19

From: Ingo Molnar
Date: Mon Nov 08 2004 - 04:42:46 EST



* Karsten Wiese <annabellesgarden@xxxxxxxx> wrote:

> RT-V0.7.19-dmesg_after_boot_rl3.log is a freshly booted dmesg output
> after logging on via ssh. RT-V0.7.19-proc_acpi_TAB.log is captured via
> netconsole. This log started after logging in locally, then typing in
> "cat /proc/acpi", then first <TAB> gives an additional "/", 2nd <TAB>
> gives no visual effect, 3rd <TAB> produces whats in the log.

could you try this with vanilla -mm3 too? The crash seems to be generic:

[<c011ae89>] do_page_fault+0x3b7/0x64e (220)
[<c0107c63>] error_code+0x2b/0x30 (100)
[<c01991e4>] proc_lookup+0x81/0xc9 (52)
[<c01762e8>] real_lookup+0xb2/0xd6 (36)
[<c017660f>] do_lookup+0x82/0x8d (32)
[<c0176d8f>] link_path_walk+0x775/0x1071 (108)
[<c01779b2>] path_lookup+0xa5/0x1b0 (32)
[<c0177c5f>] __user_walk+0x30/0x4d (32)
[<c01720eb>] vfs_stat+0x1f/0x5a (92)
[<c0172784>] sys_stat64+0x1e/0x3d (100)
[<c0107191>] sysenter_past_esp+0x52/0x71 (-4028)

while -RT made it a bit more murky by emitting an assert while the
kernel tried to crash in a critical section, it doesnt seem to be a
genuine -RT related crash.

(if it doesnt trigger in vanilla -mm3 then could you try -RT with
PREEMPT_REALTIME disabled?)

Ingo
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