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Date:      Sat, 08 Jan 2022 17:40:54 +0000
From:      bugzilla-noreply@freebsd.org
To:        standards@FreeBSD.org
Subject:   [Bug 255072] boot (legacy): no progress beyond 'BIOS DRIVE D: is disk1'
Message-ID:  <bug-255072-99-1WE8U51rFg@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-255072-99@https.bugs.freebsd.org/bugzilla/>
References:  <bug-255072-99@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D255072

--- Comment #25 from Toomas Soome <tsoome@freebsd.org> ---
(In reply to spell from comment #24)


for 1 sector  reads; bd_realstrategy() is allocating bounce buffer with:

bio_size =3D min(BIO_BUFFER_SIZE, size);

use 512 for BIO_BUFFER_SIZE.

It would be good to get the sector number and size for last read, however.

The curious thing is, you have GPT, with freebsd partition (zfs probe does
check it), but after freebsd partition, there is still free space, so we sh=
ould
not get past disk end, except if zfs probe is trying "whole disk" first and=
 we
got wrong disk size from INT 13.

--=20
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