Date: Wed, 14 Apr 2021 14:21:44 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: Mark Johnston <markj@freebsd.org> Cc: freebsd-stable List <stable@freebsd.org>, FreeBSD Current <current@freebsd.org> Subject: Re: stable/13, vm page counts do not add up Message-ID: <23d370fa-41db-a89b-03fd-e45deb874aed@FreeBSD.org> In-Reply-To: <YHYKsl/sNBNYZUDC@nuc> References: <0606571f-fec0-c7ad-98e8-a0b8554918e2@FreeBSD.org> <YG4OAVa0ohh4illU@nuc> <f509bf54-e283-eb29-2db2-1457dae7bc13@FreeBSD.org> <YG4ckaRbub6kEFO8@nuc> <dd0a979f-8a50-ab28-9701-0a8cddc9471b@FreeBSD.org> <YHYKsl/sNBNYZUDC@nuc>
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On 14/04/2021 00:18, Mark Johnston wrote:
> fbt::vm_page_unwire:entry
> /args[0]->oflags & 0x4/
> {
> @unwire[stack()] = count();
> }
Unrelated report, dtrace complains about this probe on my stable/13 system:
failed to resolve translated type for args[0]
And I do not have any idea why...
From ctfdump:
[27290] FUNC (vm_page_unwire) returns: 38 args: (1463, 3)
<1463> TYPEDEF vm_page_t refers to 778
<778> POINTER (anon) refers to 3575
<3575> STRUCT vm_page (104 bytes)
plinks type=3563 off=0
listq type=3558 off=128
object type=3564 off=256
pindex type=3565 off=320
phys_addr type=42 off=384
md type=3571 off=448
ref_count type=31 off=640
busy_lock type=31 off=672
a type=3573 off=704
order type=3 off=736
pool type=3 off=744
flags type=3 off=752
oflags type=3 off=760
psind type=2167 off=768
segind type=2167 off=776
valid type=3574 off=784
dirty type=3574 off=792
--
Andriy Gapon
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