Date: Sun, 12 Jul 2020 08:37:51 -0700 From: bob prohaska <fbsd@www.zefox.net> To: freebsd-current@freebsd.org Subject: Re: Is there any error checking on swap? Message-ID: <20200712153751.GA64898@www.zefox.net> In-Reply-To: <20200712072911.GG4213@funkthat.com> References: <20200712033332.GA63411@www.zefox.net> <20200712072911.GG4213@funkthat.com>
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On Sun, Jul 12, 2020 at 12:29:12AM -0700, John-Mark Gurney wrote: > bob prohaska wrote this message on Sat, Jul 11, 2020 at 20:33 -0700: > > Is there any error checking on swap traffic, along the lines of > > a checksum or parity test? > > > > Just curious what happens if a page written out is corrupted when > > it comes back. > > Looks like it doesn't: > https://svnweb.freebsd.org/base/head/sys/vm/swap_pager.c?annotate=361965#l1389 > Certainly nothing about parity or checksums in the comments. All faith in the hardware, I guess.... Thanks for writing! bob prohaska
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