The patches did the trick for me...
-mi
=On Tue, Mar 28, 2000 at 09:53:20AM -0500, Mikhail Teterin wrote:
=> Ruslan Ermilov once stated:
=>
=> =Do you use loader(8), or directly boot your kernel from boot blocks?
=>
=> Directly... Is that what it is?!?
=>
=Yes, starting from the following files/revisions:
=
=peter 1999/12/26 23:14:59 PST
=
= Modified files:
= lib/libkvm kvm.c kvm_alpha.c kvm_file.c
= kvm_getloadavg.c kvm_getswapinfo.c
= kvm_i386.c kvm_nlist.3 kvm_private.h
= kvm_proc.c kvm_sparc.c
= Log:
= Use kldsym(2) to lookup symbol values. This avoids the kvm_mkdb juggling
= and is module aware. Yes, this means that kvm_nlist(3) will find symbols
= in loaded modules. The emulation of the nlist struct is pretty crude but
= seems to work well enough for all the users in the tree that I found.
=
= Revision Changes Path
= 1.12 +22 -113 src/lib/libkvm/kvm.c
= 1.4 +1 -2 src/lib/libkvm/kvm_alpha.c
= 1.9 +5 -0 src/lib/libkvm/kvm_file.c
= 1.3 +5 -1 src/lib/libkvm/kvm_getloadavg.c
= 1.10 +1 -2 src/lib/libkvm/kvm_getswapinfo.c
= 1.11 +5 -1 src/lib/libkvm/kvm_i386.c
= 1.5 +7 -9 src/lib/libkvm/kvm_nlist.3
= 1.5 +1 -1 src/lib/libkvm/kvm_private.h
= 1.25 +7 -2 src/lib/libkvm/kvm_proc.c
= 1.3 +5 -1 src/lib/libkvm/kvm_sparc.c
=
=
=Could you please try the following two patches (kindly provided by
=Bruce Evans), and tell us whether they help you.
=
=There is a kern/17422 on this issue, please follow-up to it.
=
=
=
=Cheers,
=--
=Ruslan Ermilov Sysadmin and DBA of the
[EMAIL PROTECTED] United Commercial Bank,
[EMAIL PROTECTED] FreeBSD committer,
=+380.652.247.647 Simferopol, Ukraine
=
=http://www.FreeBSD.org The Power To Serve
=http://www.oracle.com Enabling The Information Age
-- Start of included mail From: Bruce Evans <[EMAIL PROTECTED]>
=Date: Tue, 14 Mar 2000 13:51:49 +1100 (EST)
=X-Sender: [EMAIL PROTECTED]
=To: Ruslan Ermilov <[EMAIL PROTECTED]>
=cc: Jordan Hubbard <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
=Subject: Re: [4.0-ERRATA candidate?] loader(8)/kvm(3) interoperability issue
=On Mon, 13 Mar 2000, Ruslan Ermilov wrote:
=
=> One thing that should IMHO be pointed out in the upcoming 4.0-RELEASE's
=> ERRATA (or some more appropriate place), is the fact that the loader(8)
=> is now a prerequisite for certain programs using kvm(3) interface.
=> Obvious examples are top(1) and swapinfo(8).
=>
=> If you boot your kernel without loader(8), directly through bootblocks,
=> these programs will not work.
=
=I don't user loader(8), and finally got around to fixing this. The
=problem is that the kernel linker wants module data for the kernel.
=It defaults to using incomplete data if none is present. The following
=supplies slightly less incomplete data:
=
=diff -c2 machdep.c~ machdep.c
=*** machdep.c~ Tue Feb 29 19:18:29 2000
=--- machdep.c Mon Mar 6 10:05:52 2000
=***************
=*** 1809,1812 ****
=--- 1799,1816 ----
= preload_metadata = (caddr_t)bootinfo.bi_modulep + KERNBASE;
= preload_bootstrap_relocate(KERNBASE);
=+ } else {
=+ static u_int32_t oldmoduledata[] = {
=+ 1, sizeof("kernel"), 0, 0,
=+ 2, sizeof("elf kernel"), 0, 0, 0,
=+ 0x8004, 4, 0,
=+ 0x8003, 4, 0,
=+ 0, 0,
=+ };
=+
=+ preload_metadata = (caddr_t)&oldmoduledata[0];
=+ strcpy((char *)&oldmoduledata[2], "kernel");
=+ strcpy((char *)&oldmoduledata[6], "elf kernel");
=+ oldmoduledata[11] = roundup2(bootinfo.bi_esymtab, 4);
=+ oldmoduledata[14] = bootinfo.bi_symtab;
= }
= if (bootinfo.bi_envp)
=
=Bruce
=
-- End of included mail.
-- Start of included mail From: Bruce Evans <[EMAIL PROTECTED]>
=Date: Thu, 23 Mar 2000 01:33:15 +1100 (EST)
=X-Sender: [EMAIL PROTECTED]
=To: Ruslan Ermilov <[EMAIL PROTECTED]>
=Subject: Re: [4.0-ERRATA candidate?] loader(8)/kvm(3) interoperability issue
=> Hmm, the kernel with this patch panics with fatal trap 12 earlier,
=> right after it reports the amount of available memory, if I boot
=> without loader(8), but works perfectly, if I do use loader(8).
=
=The symbol addresses in struct bootinfo were garbage when the symbol
=table was loaded but DDB was not configured.
=
=diff -c2 locore.s~ locore.s
=*** locore.s~ Mon Dec 6 11:12:51 1999
=--- locore.s Thu Mar 23 01:11:57 2000
=***************
=*** 45,51 ****
=
= #include "opt_bootp.h"
=- #include "opt_ddb.h"
= #include "opt_nfsroot.h"
=- #include "opt_userconfig.h"
=
= #include <sys/syscall.h>
=--- 45,49 ----
=***************
=*** 751,756 ****
= movl $R(_end),%esi
=
=! /* include symbols if loaded and useful */
=! #ifdef DDB
= movl R(_bootinfo+BI_ESYMTAB),%edi
= testl %edi,%edi
=--- 749,753 ----
= movl $R(_end),%esi
=
=! /* Include symbols, if any. */
= movl R(_bootinfo+BI_ESYMTAB),%edi
= testl %edi,%edi
=***************
=*** 761,765 ****
= addl %edi,R(_bootinfo+BI_ESYMTAB)
= over_symalloc:
=- #endif
=
= /* If we are told where the end of the kernel space is, believe it. */
=--- 758,761 ----
=
=Bruce
=
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