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Message-ID: <16367d85-fe84-4792-819a-d50a508409ef@linuxsystems.it> Date: Fri, 02 Oct 2015 11:59:38 +0200 From: Niccolò Belli <niccolo.belli@...uxsystems.it> To: <linux-kernel@...r.kernel.org> Cc: <linux-acpi@...r.kernel.org> Subject: [Dell XPS 13 9343] Random kernel Oops at boot with "acpi=ht", disappearing with "acpi=off" Hi, This laptop suffers of random kernel hangs at boot: I tested kernel 4.1.8, 4.2.1 and 4.3-rc3 and they are all affected. Every time I turn on my laptop I have to boot several times to be able to reach the sddm login because often I get hangs which prevent the system to boot. Once booted I don't have any problem anymore, until the next boot. With "acpi=off" the system boots flawlessly, while with "acpi=ht" I still get random hangs, so I guess the problem is in the ACPI table parsing code itself, or perhaps the SMP code. I recompiled kernel 4.3-rc3 with CONFIG_ACPI_DEBUG=y and I attached full log from a serial console, booting with "debug acpi.debug_level=0x2003" (warn, error and tables debug enabled): https://bugzilla.kernel.org/attachment.cgi?id=189041 Distro is Arch Linux. Please let me know if you need further logs. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=105251 Niccolò Belli -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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