On Mon, Feb 27, 2017 at 12:59:23PM -0800, Guenter Roeck wrote: > Hi, > > my qemu tests for mips64 in -next fail as follows. > > ... > VFS: Mounted root (ext3 filesystem) on device 8:0. > Freeing unused kernel memory: 304K > This architecture does not have kernel memory protection. > Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000a > > ---[ end Kernel panic - not syncing: Attempted to kill init! > exitcode=0x0000000a > > There is no symbol traceback, and I don't see any other (obvious) error > message. bisect points to commit 'objtool: Improve detection of BUG() > and other dead ends'; reverting that patch fixes the problem. > Bisect log is attached below. > > The script used to run the test as well as the root file system is available > at https://github.com/groeck/linux-build-test/tree/master/rootfs/mips64 > > A complete log is available at > http://kerneltests.org/builders/qemu-mips64-next/builds/592/steps/qemubuildcommand/logs/stdio
Hi Guenter, This failure doesn't make much sense. Objtool (and the reported bad patch) are x86-only and should have nothing to do with mips64. Would it be possible for you to double check the error? Otherwise I could try to recreate. Do you have a recommendation for a mips cross-compiler? (preferably something that's already built and that might work on Fedora) > --- > # bad: [ed7b11e565c736828f0b793f596a4ca20efee747] Add linux-next specific > files for 20170227 > # good: [c470abd4fde40ea6a0846a2beab642a578c0b8cd] Linux 4.10 > git bisect start 'HEAD' 'v4.10' > # good: [caa59428971d5ad81d19512365c9ba580d83268c] Merge tag > 'staging-4.11-rc1' of > git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging > git bisect good caa59428971d5ad81d19512365c9ba580d83268c > # good: [d5500a074741b78b7f778b4ab3415d5ecdcda0a7] Merge tag > 'usercopy-v4.11-rc1.fix' of > git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux > git bisect good d5500a074741b78b7f778b4ab3415d5ecdcda0a7 > # good: [5d8a00eee2ed2e548a5d21b0edf495f3f7bf8bb4] Merge tag 'clk-for-linus' > of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux > git bisect good 5d8a00eee2ed2e548a5d21b0edf495f3f7bf8bb4 > # good: [017bfb6c372fa793cdb09828597a464fa24e0ea7] Merge remote-tracking > branch 'jfs/jfs-next' > git bisect good 017bfb6c372fa793cdb09828597a464fa24e0ea7 > # bad: [e2a95a3fe9e9586df29e8d673dc8cdd36ed6158b] Merge remote-tracking > branch 'edac/linux_next' > git bisect bad e2a95a3fe9e9586df29e8d673dc8cdd36ed6158b > # good: [736e441efdafdbf0bb32732d87e00b8ba7f75260] Merge remote-tracking > branch 'thermal/next' > git bisect good 736e441efdafdbf0bb32732d87e00b8ba7f75260 > # good: [5bd695c24b294b482d86d352a4a0c7ba2059dcff] Merge remote-tracking > branch 'block/for-next' > git bisect good 5bd695c24b294b482d86d352a4a0c7ba2059dcff > # good: [690962e72babac64c8240071e106d2c3e8d08306] Merge remote-tracking > branch 'spi/for-next' > git bisect good 690962e72babac64c8240071e106d2c3e8d08306 > # bad: [462a53b1a2f984a8c8c0aade1c461ce9ea156d5b] Merge branch 'perf/urgent' > git bisect bad 462a53b1a2f984a8c8c0aade1c461ce9ea156d5b > # good: [bb963e16507ca7670f0bb47ccaada8874b2ba6a1] perf utils: Check verbose > flag properly > git bisect good bb963e16507ca7670f0bb47ccaada8874b2ba6a1 > # good: [7bbba0eb1af34694868d028b80475981f90e6bee] perf/core: Fix > perf_event_enable_on_exec() timekeeping (again) > git bisect good 7bbba0eb1af34694868d028b80475981f90e6bee > # bad: [1db159781cc7df093085ccaddc022beaaa9dd990] Merge branch 'core/urgent' > git bisect bad 1db159781cc7df093085ccaddc022beaaa9dd990 > # bad: [d1091c7fa3d52ebce4dd3f15d04155b3469b2f90] objtool: Improve detection > of BUG() and other dead ends > git bisect bad d1091c7fa3d52ebce4dd3f15d04155b3469b2f90 > # good: [9f0c18aec620bc9d82268b3cb937568dd07b43ff] objtool: Fix > CONFIG_STACK_VALIDATION=y warning for out-of-tree modules > git bisect good 9f0c18aec620bc9d82268b3cb937568dd07b43ff > # first bad commit: [d1091c7fa3d52ebce4dd3f15d04155b3469b2f90] objtool: > Improve detection of BUG() and other dead ends -- Josh
