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Sat, 09 Dec 2023 22:40:39 -0800 (PST) Received: by archie.me (Postfix, from userid 1000) id 6581B1021255E; Sun, 10 Dec 2023 13:40:36 +0700 (WIB) Date: Sun, 10 Dec 2023 13:40:36 +0700 From: Bagas Sanjaya To: Linux Kernel Mailing List , Linux Regressions , Linux Memory Management List , Linux DRI Development , Linux Nouveau Cc: Randy Dunlap , Christian Brauner , Andrew Morton , Mike Rapoport , Karol Herbst , Lyude Paul , Danilo Krummrich , Ard Biesheuvel , Borislav Petkov , River , bwg Subject: Re: Fwd: Kernel 6.6.1 hangs on "loading initial ramdisk" Message-ID: References: <9057d7de-f2e0-44ba-bec7-8b0861b2a850@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="gXx8QI5a8w8OQ7EJ" Content-Disposition: inline In-Reply-To: <9057d7de-f2e0-44ba-bec7-8b0861b2a850@gmail.com> X-Rspamd-Queue-Id: 050C080003 X-Rspam-User: X-Stat-Signature: sohpbww9pzpq6wm3zg5wnf95brx5dfbu X-Rspamd-Server: rspam01 X-HE-Tag: 1702190441-39487 X-HE-Meta: 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 NmkH7e4z 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: --gXx8QI5a8w8OQ7EJ Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Nov 22, 2023 at 07:06:50AM +0700, Bagas Sanjaya wrote: > Hi, >=20 > I notice a regression report on Bugzilla [1]. Quoting from it: >=20 > > After upgrading from 6.5.9 to 6.6.1 on my Dell Latitude E6420 (Intel i5= -2520M) with EndeavourOS, the boot process would hang at "loading initial r= amdisk". The issue is present on the 6.6.1 release of both Linux and Linux-= zen, but not the 6.5.9 release, which makes me think this is somehow upstre= am in the kernel, rather than to do with packaging. My current workaround i= s using the Linux LTS kernel. > >=20 > > I have been unable to consistently reproduce this bug. Between 50 and 3= 0 percent of the time, the "loading initial ramdisk" will display, the disk= activity indicator will turn off briefly and then resume blinking, and the= n the kernel boots as expected. The other 50 to 70 percent of the time, the= boot stops at "loading initial ramdisk" and the disk activity indicator tu= rns off, and does not resume blinking. The disk activity light is constantl= y flashing during normal system operation, so I know it's not secretly boot= ing but not updating the display. I haven't been able to replicate this iss= ue in QEMU. I have seen similar bugs that have been solved by disabling IOM= MU, but this has not had any effect. Neither has disabling graphics drivers= and modesetting. I have been able to reproduce it while using Nouveau, so = I don't believe it has to do with Nvidia's proprietary drivers. > >=20 > > Examining dmesg and journalctl, there doesn't appear to be ANY logs fro= m the failed boots. I don't believe the kernel even is started on these fai= led boots. Enabling GRUB debug messages (linux,loader,init,fs,device,disk,p= artition) shows that the hang occurs after GRUB attempts to start the loade= d image- it's able to load the image into memory, but the boot stalls after= "Starting image" with a hex address (presumably the start addr of the kern= el). =20 > >=20 > > I've been trying to compile the kernel myself to see if I can solve the= issue, or at least aid in reproduceability, but this is not easy or fast t= o do on a 2012 i5 processor. I'll update if I can successfully recompile th= e kernel and if it yields any information. =20 > >=20 > > Please let me know if I should provide any additional information. This= is my first time filing a bug here. >=20 > See Bugzilla for the full thread and attached grub output. >=20 > Anyway, I'm adding this regression to regzbot: >=20 > #regzbot introduced: v6.5..v6.6 https://bugzilla.kernel.org/show_bug.cgi?= id=3D218173 > #regzbot title: initramfs loading hang on nouveau system (Dell Latitude E= 6420) >=20 Another reporter on Bugzilla had bisected the regression, so: #regzbot introduced: a1b87d54f4e45f Thanks. --=20 An old man doll... just what I always wanted! - Clara --gXx8QI5a8w8OQ7EJ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSSYQ6Cy7oyFNCHrUH2uYlJVVFOowUCZXVdYAAKCRD2uYlJVVFO o7pFAP9pEeG9YYfrU018mAj4G3ZZwP4KRlBl3jIY8I/6/oQCSgEAoSNNgg6UoN4V UwYNKa6CBSB8/Ylo9b3GxsN9zH+kjQ0= =g92L -----END PGP SIGNATURE----- --gXx8QI5a8w8OQ7EJ--