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charset="us-ascii" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: openeye.net X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MW2PR07MB4058.namprd07.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: f4db6762-e7ba-4199-99f0-08db10448701 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Feb 2023 17:37:51.1594 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 01aaba89-c0e5-4a25-929f-061e1350d674 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: Ptq5NYdxwPnJjdXW+hphGLETK1WwZImmupMgw3rvw3gW80vb07lEhzqt68sXvCeQRkm9mkJ4gjHLZe7JkXEU2A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR07MB4508 X-Archives-Salt: dfab9c1a-62aa-4877-9f80-f2a3aff5d3cd X-Archives-Hash: 51423e130ba76481347e1c083e2d1f93 >-----Original Message----- >From: John Covici =20 >Sent: Wednesday, February 15, 2023 7:20 AM >To: gentoo-user@lists.gentoo.org >Subject: Re: [gentoo-user] Re: my 5.15.93 kernel keeps rebooting > >On Wed, 15 Feb 2023 09:50:27 -0500, >Grant Edwards wrote: >>=20 >> On 2023-02-14, Rich Freeman wrote: >>=20 >> > Where are you getting this from, the system log/journal? This=20 >> > doesn't seem like a clean shutdown, so if it is a kernel PANIC I=20 >> > wouldn't expect the most critical info to be in the log (since it=20 >> > will stop syncing to protect the filesystem). The details you need=20 >> > probably will be displayed on the console briefly. You can also=20 >> > enable a network console, which will send the dmesg output=20 >> > continuously over UDP to another device. This won't be interrupted=20 >> > by a PANIC unless there is some issue with the hardware or networking = stack. >>=20 >> If you've got a serial port[1], you could also set up serial logging.=20 >> Though using serial ports have become a bit of a lost art, the serial=20 >> console code in the kernel is pretty carefully designed to be the last=20 >> man standing when things start to die. It's possible (though I=20 >> wouldn't say probable) that a serial console will be able to show you=20 >> stuff closer to the event horizon than a network console can. >>=20 >> Anyway, since still I'm in the serial port business (yes, there are=20 >> still plenty of people using serial ports in industrial settings) I=20 >> had to mention it... >>=20 >> [1] For this purpose you want a plain old UART on the motherboard type >> seial port. You'd be surprised how many motherboards still have >> them. Even though they're never brought out to a DB9 connector on >> the back panel, there's often an 8-pin header on the edge of the >> board somewhere, so you'd need one of these: >>=20 >> =20 >> https://www.amazon.com/C2G-27550-Adapter-Bracket-Motherboards/dp/B0002 >> J27R8/ > >I do have one which I use for my speech synthesizer. I also have one on m= y other box which I could hook up -- if I can find my null modem cable. I = think I will try the netconsole first and the serial console if that does n= ot work. > >Thanks for the hint. > > https://wiki.gentoo.org/wiki/Kernel_Crash_Dumps is another option if you'r= e somehow not getting enough information out of the console. More complex = to set up, but you can take an actual debugger to the result and hopefully = find out exactly what's going on. LMP