On Fri, Mar 07, 2003 at 09:59:03PM +0100, Werner Backes wrote:
> Hi,
> rebuild my system 2 days ago:
> 
> NetBSD firebird 1.6P NetBSD 1.6P (FIREBIRD) #0: Wed Mar  5 23:02:25 CET
> 2003  root@firebird:/usr/src/sys/arch/i386/compile/FIREBIRD i386
> 
> and now it panics every time I try to rebuild it again. It's not
> always at the same stage during build, but always with the same
> error message:
> 
> UVM: pid 14269 (nbmake), uid 0 killed: out of swap
> panic: amap_wipeout: corrupt amap
> Stopped in pid 13.1 (reaper) at cpu_Debugger+0x4:       leave
> db> trace
> cpu_Debugger(45,d3fed0d0,67,0,6ec98040) at cpu_Debugger+0x4
> panic(c03d4eea,3,d3980ea0,c02e030d,d3fed0d0) at panic+0xb8
> amap_wipeout(d3fed0d0,bfc00000,d3980edc,c026130c,d3efe150) at
> amap_wipeout+0x37
> amap_unref(d3fed0d0,0,67,0,d3f51304) at amap_unref+0x23
> uvm_unmap_detach(d3efef50,0,bfc00000,d3980f38,0) at
> uvm_unmap_detach+0x37
> uvmspace_free(d3f51304,d3f10404,d3980f8c,c0248c2a,d3f10404) at
> uvmspace_free+0x6
> 6
> uvm_proc_exit(d3edd00c,d3f10404,1,246,d38e2600) at uvm_proc_exit+0x14
> reaper(d38e2600,0,0,0,c010030c) at reaper+0xdd
> db> 
> 
> When I watch memory usage during build I cannot see anything
> unusual. I have 256 MB of physical memory and 1 GB of swap
> but swap is never touched. 
> Could this panic be a bug or is it more likely that I have a
> hardware (memory) problem? Or maybe I messed up my system 
> during the latest build?

It's probably a bug. Do you have a way to go back to an older kernel ?
Maybe by using one from ftp://releng.netbsd.org/pub/NetBSD-daily/current/ ?
Maybe the bug has been fixed since then, using an older kernel would allow
you to rebuild one from newer sources.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 24 ans d'experience feront toujours la difference
--