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From: | John Paul Adrian Glaubitz |
Subject: | Re: Looking for advise on debugging a non-boot kernel on qemu-system-sh4 |
Date: | Fri, 22 Oct 2021 23:49:52 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 |
Hi Zoltan! Thanks a lot for helping me to investigate the problem. Much appreciated! On 10/22/21 23:06, BALATON Zoltan wrote: >> I think I've seen problems with compressed kernel images and QEMU before. I >> will switch >> to an uncompressed kernel and try again. > > How did you compile the kernel that does not boot? What config have you used? The config is constructed from the Debian kernel configuration tree. I have uploaded the resulting config file here: > https://people.debian.org/~glaubitz/config-5.14.0-3-sh7751r.gz I've tried to reproduce it by compiling a kernel with rts7751r2d1_defconfig and different > compression methods but it did start and never got the problem seen with your > kernel. Oh, that's very interesting. How big were the kernel images you got? My suspicion was that the current Debian kernel might be too much. > Maybe it's the gcc version? My cross compiler is 8.4.0 and you seem to use > 10.x. Maybe > newer gcc uses something that's not emulated correctly? Yes, it has been built with gcc-10 which is currently Debian's default kernel for building the kernel. > It would be interesting to identify what's causing the problem. Indeed. Thanks for helping me with that. Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
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