Re: mremap(2) kernel diagnostic assertion for NULL address

[yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)]

hi,

> Hi,
> 
> I just got hit by a kernel diagnostic assertion, with a mremap(2) call
> with a NULL value for old address ...

fixed.  thanks.

YAMAMOTO Takashi

> 
> panic: kernel diagnostic assertion "&map->header != entry" failed:
> file "/local/src/NetBSD/src/sys/uvm/uvm_mremap.c", line 62
> fatal breakpoint trap in supervisor mode
> trap type 1 code 0 rip ffffffff80230595 cs 8 rflags 246 cr2
> 7f7ffdb8a0f0 cpl 0 rsp ffff800051f57a50
> Stopped in pid 568.1 (mremap) at        netbsd:breakpoint+0x5:  leave
> db{1}> bt
> breakpoint() at netbsd:breakpoint+0x5
> panic() at netbsd:panic+0x29a
> __kernassert() at netbsd:__kernassert+0x2d
> uvm_mremap() at netbsd:uvm_mremap+0x51e
> sys_mremap() at netbsd:sys_mremap+0x7f
> syscall() at netbsd:syscall+0xb7
> 
> Small testscase attached ...
> 
> Thanks in advance.
> 
> -- 
> Nicolas Joly
> 
> Biological Software and Databanks.
> Institut Pasteur, Paris.