Date: Wed, 19 May 1999 00:24:59 +0900 From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp> To: gallatin@cs.duke.edu Cc: dfr@nlsystems.com, alpha@FreeBSD.ORG Subject: Re: Panic: warning: pmap_changebit didn't. Message-ID: <14145.34379.525082.1775P@ett.sat.t.u-tokyo.ac.jp> In-Reply-To: In your message of "Tue, 18 May 1999 09:41:34 -0400 (EDT)" <14145.28047.475287.627514@grasshopper.cs.duke.edu> References: <14145.11959.719375.15587A@ett.sat.t.u-tokyo.ac.jp> <199905181007.OAA02466@tejblum.dnttm.rssi.ru> <14145.16591.137760.96626G@ett.sat.t.u-tokyo.ac.jp> <14145.28047.475287.627514@grasshopper.cs.duke.edu>
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At Tue, 18 May 1999 09:41:34 -0400 (EDT), Andrew Gallatin <gallatin@cs.duke.edu> wrote: > My old, hacked-up gdb should still work. > http://www.freebsd.org/~gallatin/gdb.gz > > Just remember that it uses NetBSD 'target kcore' syntax: > > # gdb /var/crash/kernel.0 > <....> > (gdb) target kcore /var/crash/vmcore.0 Thanks, I had tried your gdb but didn't know the syntax. This GDB was configured as "alpha-unknown-netbsd"... (gdb) target kcore vmcore.13 panic: warning: pmap_changebit didn't. #0 0xfffffc000036a4fc in boot (howto=256) at ../../kern/kern_shutdown.c:286 286 savectx(&dumppcb); (gdb) where #0 0xfffffc000036a4fc in boot (howto=256) at ../../kern/kern_shutdown.c:286 #1 0xfffffc000036ab2c in panic ( fmt=0xfffffc00004f9950 "warning: pmap_changebit didn't.") at ../../kern/kern_shutdown.c:451 #2 0xfffffc00004906c0 in pmap_emulate_reference (p=0x0, v=0, user=0, write=0) at ../../alpha/alpha/pmap.c:2963 #3 0xfffffc0000491ef0 in trap (a0=18446741874922881968, a1=2, a2=0, entry=2, framep=0xfffffe000ce0bd40) at ../../alpha/alpha/trap.c:351 #4 0xfffffc0000485f8c in XentMM () at ../../alpha/alpha/exception.s:94 #5 0xfffffc000046a1dc in swapout (p=0xfffffe000cdf9340) at ../../vm/vm_glue.c:510 #6 0xfffffc000046a154 in swapout_procs (action=1) at ../../vm/vm_glue.c:487 #7 0xfffffc0000479774 in vm_daemon () at ../../vm/vm_pageout.c:1416 #8 0xfffffc00003569fc in kproc_start (udata=0x0) at ../../kern/init_main.c:294 (gdb) frame 2 #2 0xfffffc00004906c0 in pmap_emulate_reference (p=0x0, v=0, user=0, write=0) at ../../alpha/alpha/pmap.c:2963 2963 panic("warning: pmap_changebit didn't."); (gdb) print pa $1 = 350412800 (gdb) print *pte $2 = 183717226090783 (gdb) print faultoff $3 = 10 (gdb) print /x pa $4 = 0x14e2e000 (gdb) print /x *pte $5 = 0xa7170000111f (gdb) print /x faultoff $6 = 0xa (gdb) -- /\ Hidetoshi Shimokawa \/ simokawa@sat.t.u-tokyo.ac.jp PGP public key: finger -l simokawa@sat.t.u-tokyo.ac.jp To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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