From: "Rosenow, James" <jim.rosenow@mts.com>
To: "xenomai@lists.linux.dev" <xenomai@lists.linux.dev>
Subject: RE: Hang at "loading initial ramdisk ..." on Generation 11 CPU, Gen 9, 7, and 6 work.
Date: Mon, 11 Mar 2024 16:52:50 +0000 [thread overview]
Message-ID: <DM6PR04MB53864A2698B4F2147B79413CE2242@DM6PR04MB5386.namprd04.prod.outlook.com> (raw)
In-Reply-To: <DM6PR04MB538673AA2E912100093BBA7CE2242@DM6PR04MB5386.namprd04.prod.outlook.com>
We have a COM express carrier with an on-board SSD. The SSD has Ubuntu 22.04 installed on it, on top of that, I've installed the latest Xenomai (master) alongside the 'v6.5-dovetail-rebase' kernel from the linux-dovetail repository . Given that our board supports COM Express, we can easily swap between various processors and have been doing so looking for the best price/performance ratio and of course, low latency.
I have two modules that I am currently testing, an i3-11100HE and an i7-9850HL. Since the SSD is on the base board, I'm running the exact same version of Ubuntu, kernel and root file system regardless of the installed processor board.
The gen9 processor boots and runs the Xenomai kernel without any trouble at all. I'm having SMI issues but that is another subject. When I put the gen11 board on the carrier, it hangs at 'loading initial ramdisk .'. It is noteworthy that if I interrupt grub and select the stock 6.5.x Ubuntu kernel on either, both gen 11 and gen 9 boot and run fine. I've verified the Xenomai kernel runs fine on generation 7 and 6 CPU's as well.
I've searched the web for possible reasons why Linux would hang at that point; for Linux in general, it is a common thing and I've tried many, many of the solutions that others have found to work, all to no avail. I do not know how to get additional information on what is hanging as there is really no context from which to proceed.
I'm looking for suggestions on next steps to root cause this hang.
Thanks and regards,
Jim
next parent reply other threads:[~2024-03-11 16:52 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <DM6PR04MB538655375C57CF07EDDE5089E2242@DM6PR04MB5386.namprd04.prod.outlook.com>
[not found] ` <DM6PR04MB538673AA2E912100093BBA7CE2242@DM6PR04MB5386.namprd04.prod.outlook.com>
2024-03-11 16:52 ` Rosenow, James [this message]
2024-03-11 17:26 ` Hang at "loading initial ramdisk ..." on Generation 11 CPU, Gen 9, 7, and 6 work Philippe Gerum
2024-03-13 16:11 ` Rosenow, James
2024-03-13 18:32 ` Rosenow, James
2024-03-19 15:19 ` Rosenow, James
2024-03-19 15:40 ` Philippe Gerum
2024-03-20 7:44 ` Chen, Hongzhan
2024-03-20 21:36 ` Philippe Gerum
2024-03-21 5:56 ` Chen, Hongzhan
2024-03-20 21:25 ` Philippe Gerum
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