On Tue, 19 Aug, at 04:16:58PM, Dave Young wrote: > Hi, > > 3.16 kernel boot fail with earlyprintk=efi on my laptop. > It keeps scrolling at the bottom line of screen. > > Bisected, the first bad commit is below: > commit 86dfc6f339886559d80ee0d4bd20fe5ee90450f0 > Author: Lv Zheng <lv.zheng@xxxxxxxxx> > Date: Fri Apr 4 12:38:57 2014 +0800 > > ACPICA: Tables: Fix table checksums verification before installation. > > > I did some debugging by enabling both serial and efi earlyprintk, below is > some debug dmesg, seems early_ioremap fails in scroll up function due to > no free slot, but I'm still not sure if the debug info is right or not. Thanks Dave, your callstack seems to make sense. Can you also enable early_ioremap_debug so that we can figure out where all the FIXMAP slots are going? -- Matt Fleming, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html