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Re: PR/51254 CVS commit: src/sys/uvm

To: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, martin%NetBSD.org@localhost
Subject: Re: PR/51254 CVS commit: src/sys/uvm
From: Rin Okuyama <rokuyama.rk%gmail.com@localhost>
Date: Mon, 6 Jun 2022 00:40:10 +0900

Ah, it seems like PMAP_PREFER() changes "hint" unexpectedly.
Both sh3 and sparc64 (the original target of this PR) have
PMAP_PREFER().

We had a similar bug before: kern/54395. In this case, non-zero
"align" caused the KASSERT failure. We fixed the problem by aligning
"hint" at the beginning of uvm_map():

http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/uvm/uvm_map.c#rev1.365

Thanks,
rin

References:
- Re: PR/51254 CVS commit: src/sys/uvm
  - From: Rin Okuyama

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