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Thu, 05 Mar 2026 03:39:57 -0800 (PST) MIME-Version: 1.0 References: <5948f3a6-8f30-4c45-9b86-2af9a6b37405@kernel.org> <0dfd588c-3284-4310-b1cd-aab54567f0c0@kernel.org> <05a26f9d-e7eb-4aa4-b5a3-d485945f81c6@kernel.org> In-Reply-To: <05a26f9d-e7eb-4aa4-b5a3-d485945f81c6@kernel.org> From: Tytus Rogalewski Date: Thu, 5 Mar 2026 12:39:46 +0100 X-Gm-Features: AaiRm51pu9uAWt2bc51DiyJcFutnByg1_nmjLiXZaSNUwMuaNtKcbrvZ1QK1Wi4 Message-ID: Subject: Re: walk_pgd_range BUG: unable to handle page fault To: "David Hildenbrand (Arm)" Cc: linux-mm@kvack.org, muchun.song@linux.dev, osalvador@suse.de, Jens Axboe Content-Type: multipart/alternative; boundary="000000000000671b0c064c456528" X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 12914C000D X-Stat-Signature: ymbeajwrkxbphn6tntg3kpwy4s93631p X-Rspam-User: X-HE-Tag: 1772710799-410082 X-HE-Meta: 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 XUt/7wbe 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: --000000000000671b0c064c456528 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable I had this problem on 6.19-rc4 yes. I saw it. But i cant reproduce it NOW - this is what i ment :) -- tel. 790 202 300 *Tytus Rogalewski* Dolina Krzemowa 6A 83-010 Jagatowo NIP: 9570976234 czw., 5 mar 2026 o 12:38 David Hildenbrand (Arm) napisa=C5=82(a): > On 3/5/26 12:34, Tytus Rogalewski wrote: > > Well, i would better not as i would have to put this on production as i > > have no idea how clients are triggering this in their VMs. > > Cant trigger this myself. > > I'm confused, during your first mail you wrote "It happens on multiple > servers (less on 6.18.6, more on 6.19-rc4+)", implying that you did > reproduce the problem on 6.19-rc4+? > > -- > Cheers, > > David > --000000000000671b0c064c456528 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I had this problem on 6.19-rc4 yes. I saw it. But i c= ant=C2=A0reproduce it NOW - this is what i ment=C2=A0 :)

--

tel. 790 202 300

Tytus Rogalewski

Dolina Krzemowa 6A<= /font>

83-010 Jagatowo

NIP: 9570976234



czw., 5 mar 2026 o 12= :38=C2=A0David Hildenbrand (Arm) <da= vid@kernel.org> napisa=C5=82(a):
On 3/5/26 12:34, Tytus Rogalewski wrote:
> Well, i would better not as i would have to put this on production as = i
> have no idea how clients are triggering this in their VMs.
> Cant trigger this myself.

I'm confused, during your first mail you wrote "It happens on mult= iple
servers (less on 6.18.6, more on 6.19-rc4+)", implying that you did reproduce the problem on 6.19-rc4+?

--
Cheers,

David
--000000000000671b0c064c456528--