Date: Fri, 25 Apr 1997 23:52:39 -0600 From: Steve Passe <smp@csn.net> To: Peter Wemm <peter@spinner.dialix.com> Cc: freebsd-smp@FreeBSD.org Subject: Re: panic: 8254 redirect impossible.. Message-ID: <199704260552.XAA11003@Ilsa.StevesCafe.com> In-Reply-To: Your message of "Sat, 26 Apr 1997 13:01:09 %2B0800." <199704260501.NAA00297@spinner.DIALix.COM>
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Hi,
I recently commited a version of mp_machdep.c that introduces a bug that may
cause a panic during boot with the message:
8254 redirect impossible
here's a patch to remove it IF it bites you:
*** mp_machdep.c~ Thu Apr 24 21:11:27 1997
--- mp_machdep.c Fri Apr 25 23:46:34 1997
***************
*** 603,609 ****
--- 603,611 ----
static int nintrs;
+ #if defined(FIX_MP_TABLE_WORKS)
static void fix_mp_table __P((void));
+ #endif /* FIX_MP_TABLE_WORKS */
static void processor_entry __P((proc_entry_ptr entry, int* cpu));
static void io_apic_entry __P((io_apic_entry_ptr entry, int* apic));
***************
*** 739,752 ****
--- 741,757 ----
/* record # of IO APICs found */
nintrs = intr;
+ #if defined(FIX_MP_TABLE_WORKS)
/* post scan cleanup */
fix_mp_table();
+ #endif /* FIX_MP_TABLE_WORKS */
/* report fact that its NOT a default configuration */
return 0;
}
+ #if defined(FIX_MP_TABLE_WORKS)
/*
* parse an Intel MP specification table
*/
***************
*** 816,822 ****
}
}
}
!
/*
*
--- 821,827 ----
}
}
}
! #endif /* FIX_MP_TABLE_WORKS */
/*
*
***************
*** 1020,1026 ****
--- 1025,1033 ----
for (intr = 0; intr < nintrs; ++intr) /* search each record */
if ((INTTYPE(intr) == 0)
+ #if defined(FIX_MP_TABLE_WORKS)
&& (SRCBUSID(intr) == pciBus)
+ #endif /* FIX_MP_TABLE_WORKS */
&& (SRCBUSDEVICE(intr) == pciDevice)
&& (SRCBUSLINE(intr) == pciInt)) /* a candidate IRQ */
if (apic_int_is_bus_type( intr, PCI )) /* check bus match */
--
Steve Passe | powered by
smp@csn.net | Symmetric MultiProcessor FreeBSD
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