Messages in this thread |  | | Date | Wed, 18 Sep 2002 12:20:29 +0200 | From | "J.A. Magallon" <> | Subject | BUG() triggered on SMP shutdown, cpu!=0 |
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Hi all...
I am getting oopses on shutdown, 'cause this bug is popping:
static void apm_power_off(void) { unsigned char po_bios_call[] = { 0xb8, 0x00, 0x10, /* movw $0x1000,ax */ 0x8e, 0xd0, /* movw ax,ss */ 0xbc, 0x00, 0xf0, /* movw $0xf000,sp */ 0xb8, 0x07, 0x53, /* movw $0x5307,ax */ 0xbb, 0x01, 0x00, /* movw $0x0001,bx */ 0xb9, 0x03, 0x00, /* movw $0x0003,cx */ 0xcd, 0x15 /* int $0x15 */ };
/* * This may be called on an SMP machine. */ #ifdef CONFIG_SMP /* Some bioses don't like being called from CPU != 0 */ if (cpu_number_map(smp_processor_id()) != 0) { current->cpus_allowed = 1; schedule(); if (unlikely(cpu_number_map(smp_processor_id()) != 0)) BUG(); } #endif if (apm_info.realmode_power_off) machine_real_restart(po_bios_call, sizeof(po_bios_call)); else (void) set_system_power_state(APM_STATE_OFF); }
Does this mean that after the schedule() kernel is still in CPU1 ??? Will add a couple ptintks.... This is 2.4.19-pre7+aa patches.
TIA
-- J.A. Magallon <jamagallon@able.es> \ Software is like sex: werewolf.able.es \ It's better when it's free Mandrake Linux release 9.0 (Cooker) for i586 Linux 2.4.20-pre7-jam0 (gcc 3.2 (Mandrake Linux 9.0 3.2-1mdk)) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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