Messages in this thread Patch in this message | | | From | "Perez-Gonzalez, Inaky" <> | Subject | [PATCH 2.5.72] Fix boot deadlock on MTRR main.c:ipi_handler | Date | Thu, 19 Jun 2003 19:20:35 -0700 |
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Hi All
Stomped over this one this morning; tried to boot 2.5.72 (config attached) into my 2xP3 Coppermine 933 MHz and it would get stuck just after printing the mttr banner.
The NMI watchdog would kick in and print a dump pointing to arch/i386/kernel/cpu/mtrr/main.c:ipi_handler:
NMI Watchdog detected LOCKUP on CPU1, eip c0113b70, registers: CPU: 1 EIP: 0060:[<c0113b70>] Not tainted EFLAGS: 00000082 EIP is at ipi_handler+0x60/0x80 eax: c014b2fe ebx: c2bf5f60 ecx: 000002ff edx: 00000000 esi: 00000086 edi: c2bf2000 ebp: c2bf3f5c esp: c2bf3f44 ds: 007b es: 007b ss: 0068 Process swapper (pid: 0, threadinfo=c2bf2000 task=c2bf72d0) Stack: c0464228 00000046 c0495088 00000001 c2bf2000 00000000 c2bf3f70 c0118412 c2bf5f60 c01072a0 c2bf2000 c2bf3fac c010a50e c01072a0 00000000 c2bf2000 c2bf2000 c2bf2000 c2bf3fac 00000000 0000007b c2bf007b fffffffb c01072d0 Call Trace: [<c0118412>] smp_call_function_interrupt+0x42/0xa0 [<c01072a0>] default_idle+0x0/0x40 [<c010a50e>] call_function_interrupt+0x1a/0x20 [<c01072a0>] default_idle+0x0/0x40 [<c01072d0>] default_idle+0x30/0x40 [<c010736a>] cpu_idle+0x4a/0x60 [<c012532d>] printk+0x1dd/0x290
Code: f3 90 8b 43 04 85 c0 75 f7 56 9d 83 c4 10 5b 5e 5d c3 a1 44 console shuts up ...
Sooo .. decided to do the binary search thingie and tracked it down to patch-2.5.70-bk15-bk15.gz, change set 1.28 (http://linux.bkbits.net:8080/linux-2.5/diffs/arch/i386/kernel/cpu/mtrr/main .c@1.28?nav=index.html|tags|ChangeSet@1.1215.18.33..|cset@1.1215.114.28),
where mtrr_init() is changed from being a core_initcall to be a subsys_initcall(). Reverting that changes Fixes It For Me (tm) both in 2.5.70-bk16 and 2.5.72. No adversities seen so far.
Please apply:
--- arch/i386/kernel/cpu/mtrr/main.c~ 2003-06-16 21:19:39.000000000 -0700 +++ arch/i386/kernel/cpu/mtrr/main.c 2003-06-19 18:52:38.000000000 -0700 @@ -701,5 +701,5 @@ "write-back", /* 6 */ }; -subsys_initcall(mtrr_init); +core_initcall(mtrr_init);
Iñaky Pérez-González -- Not speaking for Intel -- all opinions are my own (and my fault)
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