On Tuesday 21 September 2004 01:10 pm, Nate Lawson wrote: > Roman Kurakin wrote: > > My solution works for current so I am going to commit it and MFC after > > a while. To be sure that I am not on the wrong way I need some > > reviewed/approved signs ;-) I also hope to get one (or more) tested > > signs. > > > > Patch I plan to commit following patch: > > > > Index: mp_machdep.c > > =================================================================== > > RCS file: /home/ncvs/src/sys/i386/i386/mp_machdep.c,v > > retrieving revision 1.238 > > diff -u -r1.238 mp_machdep.c > > --- mp_machdep.c 1 Sep 2004 06:42:01 -0000 1.238 > > +++ mp_machdep.c 21 Sep 2004 15:54:41 -0000 > > _at__at_ -743,10 +743,11 _at__at_ > > u_int8_t *dst8; > > u_int16_t *dst16; > > u_int32_t *dst32; > > + vm_offset_t va = (vm_offset_t) dst; > > > > POSTCODE(INSTALL_AP_TRAMP_POST); > > > > - pmap_kenter(boot_address + KERNBASE, boot_address); > > + pmap_map(&va, boot_address, boot_address + size, 0); > > for (x = 0; x < size; ++x) > > *dst++ = *src++; > > > > Any signs for(or against)? > > > > Thanks! > > A quick "no" vote from me until this is really understood. I think the > real problem is an interference between the pmap for the AP trampoline > and the acpi wake code (sys/i386/acpica/acpi_wakeup.c). The address you > gave (0x9f000) is right before the base address we use for the wakeup > code (0xa0000). As I woke up this morning, I was wondering if this > could be the issue. An easy way to test is to disable the call to > acpi_install_wakeup_handler() in sys/i386/acpica/acpi_machdep.c and see > if this alone fixes the problem. > > If I'm wrong, feel free to commit your patch. > > P.S. Spaces instead of tabs in your diff. Umm, 0xa0000 is the start of Video RAM, so I sure hope the ACPI wake code doesn't try to write code into Video memory. The pmap_invalidate_page is certainly needed. -- John Baldwin <jhb_at_FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.orgReceived on Tue Sep 21 2004 - 17:01:35 UTC
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