Date: Fri, 06 Dec 1996 04:18:29 +0100 From: Tor Egge <Tor.Egge@idt.ntnu.no> To: smp@csn.net Cc: smp@FreeBSD.ORG, smp@bluenose.na.tuns.ca, Janick.Taillandier@ratp.fr, peter@spinner.dialix.com Subject: Re: last major problem Message-ID: <199612060318.EAA09185@pat.idt.unit.no> In-Reply-To: Your message of "Thu, 05 Dec 1996 20:06:51 -0700" References: <199612060306.UAA16913@clem.systemsix.com>
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> Hi,
>
> It appears we have one last serious problem to fix. 3 users report
> crashing shortly after starting the 2nd CPU.
Two data points:
1. I did not have
options SMP_INVLTLB
in my kernel config file.
2. I'll report back when I've tried the following patch:
Index: pmap.c
===================================================================
RCS file: /export/akg1/smp-cvs/sys/i386/i386/pmap.c,v
retrieving revision 1.31
diff -c -r1.31 pmap.c
*** pmap.c 1996/12/03 05:51:12 1.31
--- pmap.c 1996/12/06 03:09:33
***************
*** 552,557 ****
--- 552,560 ----
if (frame != (((unsigned) APTDpde) & PG_FRAME)) {
APTDpde = (pd_entry_t) (frame | PG_RW | PG_V);
invltlb();
+ #if defined(SMP_INVLTLB)
+ smp_invltlb();
+ #endif
}
return (unsigned *) APTmap;
}
- Tor Egge
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