Hi, Kexec reboot and kdump has broken on my laptop for long time with 4.15.0-rc1+ kernels. With the patch below an early panic been fixed: https://patchwork.kernel.org/patch/10084289/ But still can not get a successful reboot, it looked like graphic issue, but after bisecting the kernel, I got below: [dyoung at dhcp-*-* linux]$ git bisect good There are only 'skip'ped commits left to test. The first bad commit could be any of: 2db1f959d9dc16035f2eb44ed5fdb2789b754d6a 4900be83602b6be07366d3e69f756c1959f4169a We cannot bisect more! These two commits can no be reverted because of code conflicts, thus I reverted the whole series from Thomas (below commits), with those x86/vector changes reverted, kexec reboot works fine. Could you help to take a look, any thoughts? I can do the test if you have some debug patch to try. commit 90ad9e2d91067983f3328e21b306323877e5f48a Author: Thomas Gleixner <tglx at linutronix.de> Date: Wed Sep 13 23:29:49 2017 +0200 x86/io_apic: Reevaluate vector configuration on activate() commit 2db1f959d9dc16035f2eb44ed5fdb2789b754d6a Author: Thomas Gleixner <tglx at linutronix.de> Date: Wed Sep 13 23:29:50 2017 +0200 x86/vector: Handle managed interrupts proper commit 4900be83602b6be07366d3e69f756c1959f4169a Author: Thomas Gleixner <tglx at linutronix.de> Date: Wed Sep 13 23:29:51 2017 +0200 x86/vector/msi: Switch to global reservation mode commit 464d12309e1b5829597793db551ae8ecaecf4036 Author: Thomas Gleixner <tglx at linutronix.de> Date: Wed Sep 13 23:29:52 2017 +0200 x86/vector: Switch IOAPIC to global reservation mod commit 2cffad7bad83157f89332872015f4305d2ac09ac Author: Thomas Gleixner <tglx at linutronix.de> Date: Wed Sep 13 23:29:53 2017 +0200 x86/irq: Simplify hotplug vector accounting commit d6ffc6ac83b1f9f12652d89b9cb5bcbfbea7796c Author: Thomas Gleixner <tglx at linutronix.de> Date: Wed Sep 13 23:29:54 2017 +0200 x86/vector: Respect affinity mask in irq descriptor commit 02edee152d6ea325c88898f3a702f5db2d78de7a Author: Thomas Gleixner <tglx at linutronix.de> Date: Thu Oct 12 11:05:28 2017 +0200 x86/apic/vector: Ignore set_affinity call for inactive interrupts commit 0696d059f23c05f2dbc3b19ef50e5bdd175b782b Author: Thomas Gleixner <tglx at linutronix.de> Date: Mon Oct 16 16:16:19 2017 +0200 x86/vector: Use correct per cpu variable in free_moved_vector() ---------------- BTW, my git HEAD is below: commit 43570f0383d6d5879ae585e6c3cf027ba321546f (origin/master, origin/HEAD, bisect) Merge: 43f462f1c2e1 c14ca8386539 Author: Linus Torvalds <torvalds at linux-foundation.org> Date: Tue Nov 28 16:22:10 2017 -0800 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Thanks Dave
