Hi Pavel, Am 02.01.20 um 12:49 schrieb Arnd Bergmann: > On Thu, Jan 2, 2020 at 12:00 PM Pavel Machek <pavel@xxxxxx> wrote: >> On Mon 2019-12-30 09:35:07, Tony Lindgren wrote: >>> * Pavel Machek <pavel@xxxxxx> [191228 19:37]: >>>> Hi! >>>> >>>>> 5.4-based kernel works ok on my droid 4. >>>>> >>>>> 5.5-rc3 based kernel has problems; it reboots when I try to kexec it. >>>>> >>>>> Vanilla 5.5-rc3 reboots, too. >>>>> >>>>> If you have any ideas, let me know. >>>> I managed to get partial serial dump. This should be 5.5-rc3: And then >>>> a bit better serial dump (below). But it is silent for few seconds, >>>> and then it restarts... >>> If spi or regulators have problems, nothing will really work.. >> arm-soc merge seems to be responsible: >> >> bad 38206c24ab09b4f4c2a57de5c1af0bb2e69cf5b6 Merge tag 'armsoc-soc' of >> good d9e48dc2a71a836f17d1febbedb31470f957edb4 Merge tag >> >> Pavel >> >> # bad: [738d2902773e30939a982c8df7a7f94293659810] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net >> # good: [219d54332a09e8d8741c1e1982f5eae56099de85] Linux 5.4 >> git bisect start '738d2902773e' '219d54332a09' >> # bad: [46cf053efec6a3a5f343fead837777efe8252a46] Linux 5.5-rc3 >> git bisect bad 46cf053efec6a3a5f343fead837777efe8252a46 >> # bad: [e42617b825f8073569da76dc4510bfa019b1c35a] Linux 5.5-rc1 >> git bisect bad e42617b825f8073569da76dc4510bfa019b1c35a >> # good: [9a3d7fd275be4559277667228902824165153c80] Merge tag 'driver-core-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core >> git bisect good 9a3d7fd275be4559277667228902824165153c80 >> # good: [0b4295b5e2b9b42f3f3096496fe4775b656c9ba6] io_uring: fix a typo in a comment >> git bisect good 0b4295b5e2b9b42f3f3096496fe4775b656c9ba6 >> # good: [056df578c2dcac1e624254567f5df5ddaa223234] Merge tag 'arc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc >> git bisect good 056df578c2dcac1e624254567f5df5ddaa223234 >> # bad: [25cfb0c7de3f14e283a43dcd6de903657f9f98c7] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu >> git bisect bad 25cfb0c7de3f14e283a43dcd6de903657f9f98c7 >> # bad: [38206c24ab09b4f4c2a57de5c1af0bb2e69cf5b6] Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc >> git bisect bad 38206c24ab09b4f4c2a57de5c1af0bb2e69cf5b6 >> # good: [d9e48dc2a71a836f17d1febbedb31470f957edb4] Merge tag 'pwm/for-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm >> git bisect good d9e48dc2a71a836f17d1febbedb31470f957edb4 > In that branch, I see the following non-merge commits: > > ... > 781fa0a95424 ARM: bcm: Add support for BCM2711 SoC > unfortunately this patch breaks multiplatform support and might be affect you. Please make sure this one is applied, while bisecting: 59034b9d6af8 ("ARM: bcm: Add missing sentinel to bcm2711_compat[]") Sorry about this Stefan