Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757276AbcK2OGk (ORCPT ); Tue, 29 Nov 2016 09:06:40 -0500 Received: from mx1.redhat.com ([209.132.183.28]:43592 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757152AbcK2OGb (ORCPT ); Tue, 29 Nov 2016 09:06:31 -0500 Date: Tue, 29 Nov 2016 15:06:28 +0100 From: Radim =?utf-8?B?S3LEjW3DocWZ?= To: Kui Zhang Cc: "linux-kernel@vger.kernel.org" , kvm@vger.kernel.org Subject: Re: 4.9.0-rc6+ boot problem Message-ID: <20161129140627.GA1682@potion> References:

MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Tue, 29 Nov 2016 14:06:31 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 8832 Lines: 201 2016-11-29 03:04-0800, Kui Zhang: > Looks like my boot issue might be kvm related. System boots fine with > CONFIG_KVM=m v4.9-rc6 has some funny changes around modversion, although your bug looks even more random ... Can you reproduce with v4.9-rc7 built from a clean repo? Please send your config if the bug still happens. Thanks. > --- .config 2016-11-29 02:41:24.753930839 -0800 > +++ .config.working 2016-11-29 02:41:11.029065291 -0800 > @@ -3544,7 +3544,7 @@ > # CONFIG_IMG_ASCII_LCD is not set > # CONFIG_UIO is not set > # CONFIG_VFIO is not set > -CONFIG_IRQ_BYPASS_MANAGER=y > +CONFIG_IRQ_BYPASS_MANAGER=m > # CONFIG_VIRT_DRIVERS is not set > > # > @@ -4553,7 +4553,7 @@ > CONFIG_KVM_COMPAT=y > CONFIG_HAVE_KVM_IRQ_BYPASS=y > CONFIG_VIRTUALIZATION=y > -CONFIG_KVM=y > +CONFIG_KVM=m > CONFIG_KVM_INTEL=m > # CONFIG_KVM_AMD is not set > # CONFIG_KVM_MMU_AUDIT is not set > > On Sun, Nov 27, 2016 at 2:23 PM, Kui Zhang wrote: > > Hello, > > > > I am having problem booting 4.9.0-rc6+ on my laptop. > > > > 4.9.0-rc5+ works, so not likely hardware issues. > > > > > > Ubuntu Zesty Zapus > > > > ### > > gcc-6 with > > > > CONFIG_PCI_QUIRKS=y > > CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y > > > > After grub, screen turns off. No pre modeset messages. Then system > > reboot itself. > > > > When > > > > CONFIG_PCI_QUIRKS not set > > CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS not set > > > > > > System would boot up to: "Clocksource: Switched to clocksource hpet". then loop > > > > ''' > > Could not create tracefs '' directory > > Could not create directory for event > > ''' > > > > ### > > gcc-4.9 system would panic with above settings on. > > > > With them off, setting would boot to login prompt. Only one working terminal. > > > > Login works. > > dmesg works > > > > lsmod hangs > > > > > > > > [ 8.436647] BUG: unable to handle kernel paging request at 0000000016000000 > > [ 8.437448] IP: [] strcmp+0x16/0x30 > > [ 8.438224] PGD 0 > > > > [ 8.438992] Oops: 0000 [#1] SMP > > [ 8.439750] Modules linked in: > > [ 8.440506] CPU: 6 PID: 430 Comm: systemd-udevd Not tainted 4.9.0-rc6+ #14 > > [ 8.441266] Hardware name: Notebook > > P15SM-A/SM1-A /P15SM-A/SM1-A , > > BIOS 4.6.5 04/20/2015 > > [ 8.442239] task: ffffa3d3a436e3c0 task.stack: ffffba3641604000 > > [ 8.443033] RIP: 0010:[] [] > > strcmp+0x16/0x30 > > [ 8.443828] RSP: 0018:ffffba3641607bf0 EFLAGS: 00010202 > > [ 8.444603] RAX: 000000000000006d RBX: ffffffff97fc33c0 RCX: 0000000000000a1f > > [ 8.445382] RDX: 000000000000143e RSI: 0000000016000001 RDI: ffffba3641669fe7 > > [ 8.446149] RBP: ffffba3641607bf0 R08: ffffffff9716cb90 R09: ffffffffc0409000 > > [ 8.446917] R10: 00003fffffe00000 R11: 0000000000002000 R12: 0000000000000a1f > > [ 8.447683] R13: 0000000000000010 R14: 000000000000143e R15: 0000000000000000 > > [ 8.448446] FS: 00007f4830a4c8c0(0000) GS:ffffa3d3afb80000(0000) > > knlGS:0000000000000000 > > [ 8.449202] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > > [ 8.449957] CR2: 0000000016000000 CR3: 0000000224a12000 CR4: 00000000001406e0 > > [ 8.450710] Stack: > > [ 8.451457] ffffba3641607c00 ffffffff9716cba2 ffffba3641607c50 > > ffffffff974ebede > > [ 8.452232] ffffffff9716cb90 ffffffff97fb91d0 ffffba3641669fe6 > > ffffba3641607cb8 > > [ 8.453005] 0000000000000000 ffffffff97c2e840 ffffba3641687f00 > > ffffba3641607e80 > > [ 8.453779] Call Trace: > > [ 8.454608] [] cmp_name+0x12/0x20 > > [ 8.455621] [] bsearch+0x5e/0x90 > > [ 8.456656] [] ? unregister_module_notifier+0x20/0x20 > > [ 8.457444] [] find_symbol_in_section+0x3b/0xf0 > > [ 8.458228] [] ? mod_find_symname+0x70/0x70 > > [ 8.459018] [] each_symbol_section+0x26/0x50 > > [ 8.459801] [] find_symbol+0x36/0xa0 > > [ 8.460570] [] ? find_sec+0x48/0x80 > > [ 8.461553] [] resolve_symbol.isra.61+0x4a/0xb0 > > [ 8.461556] [] ? get_modinfo.isra.56+0x46/0xa0 > > [ 8.461558] [] load_module+0xc57/0x2700 > > [ 8.461560] [] ? ima_post_read_file+0x74/0x90 > > [ 8.461563] [] ? security_kernel_post_read_file+0x6b/0x80 > > [ 8.461566] [] ? kernel_read_file+0x172/0x190 > > [ 8.461568] [] SYSC_finit_module+0x96/0xd0 > > [ 8.461569] [] SyS_finit_module+0xe/0x10 > > [ 8.461571] [] do_syscall_64+0x6a/0x220 > > [ 8.461574] [] entry_SYSCALL64_slow_path+0x25/0x25 > > [ 8.461591] Code: 01 0f b6 4e ff 48 83 c2 01 84 c9 88 4a ff 75 ed > > 5d c3 0f 1f 00 55 48 89 e5 eb 04 84 c0 74 18 48 83 c7 01 48 83 c6 01 > > 0f b6 47 ff <3a> 46 ff 74 eb 19 c0 5d 83 c8 01 c3 31 c0 5d c3 66 2e 0f > > 1f 84 > > [ 8.461593] RIP [] strcmp+0x16/0x30 > > [ 8.461594] RSP > > [ 8.461594] CR2: 0000000016000000 > > [ 8.461605] ---[ end trace 470acb4c22b46ca8 ]--- > > > > > > [ 7.367754] BUG: unable to handle kernel paging request at 000000002c000000 > > [ 7.368663] IP: [] strcmp+0x16/0x30 > > [ 7.369408] PGD 0 > > > > [ 7.370111] Oops: 0000 [#1] SMP > > [ 7.370805] Modules linked in: > > [ 7.371504] CPU: 0 PID: 360 Comm: systemd-modules Tainted: G > > O 4.9.0-rc5 #17 > > [ 7.372211] Hardware name: Notebook > > P15SM-A/SM1-A /P15SM-A/SM1-A , > > BIOS 4.6.5 04/20/2015 > > [ 7.372963] task: ffff8f02659b4740 task.stack: ffffa9de81274000 > > [ 7.373687] RIP: 0010:[] [] > > strcmp+0x16/0x30 > > [ 7.374444] RSP: 0018:ffffa9de81277c20 EFLAGS: 00010202 > > [ 7.375169] RAX: 0000000000000070 RBX: ffffffffadfc3390 RCX: 0000000000000a1e > > [ 7.375899] RDX: 000000000000143d RSI: 000000002c000001 RDI: ffffa9de811f2da1 > > [ 7.376633] RBP: ffffa9de81277c20 R08: ffffffffad16c550 R09: ffffffffc03ca000 > > [ 7.377364] R10: 00003fffffe00000 R11: 0000000000002000 R12: 0000000000000a1e > > [ 7.378097] R13: 0000000000000010 R14: 000000000000143d R15: 0000000000000000 > > [ 7.378832] FS: 00007fa5291ef8c0(0000) GS:ffff8f026fa00000(0000) > > knlGS:0000000000000000 > > [ 7.379591] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > > [ 7.380327] CR2: 000000002c000000 CR3: 00000002228f0000 CR4: 00000000001406f0 > > [ 7.381073] Stack: > > [ 7.381796] ffffa9de81277c30 ffffffffad16c562 ffffa9de81277c80 > > ffffffffad4eb23e > > [ 7.382557] ffffffffad16c550 ffffffffadfb91b0 ffffa9de811f2da0 > > ffffa9de81277ce8 > > [ 7.383275] 0000000000000000 ffffffffadc2e7c0 ffffa9de811f46b0 > > ffffa9de81277eb0 > > [ 7.383986] Call Trace: > > [ 7.384697] [] cmp_name+0x12/0x20 > > [ 7.385403] [] bsearch+0x5e/0x90 > > [ 7.386188] [] ? unregister_module_notifier+0x20/0x20 > > [ 7.387304] [] find_symbol_in_section+0x3b/0xf0 > > [ 7.388407] [] ? mod_find_symname+0x70/0x70 > > [ 7.389504] [] each_symbol_section+0x26/0x50 > > [ 7.390590] [] find_symbol+0x36/0xa0 > > [ 7.391662] [] ? find_sec+0x48/0x80 > > [ 7.392734] [] resolve_symbol.isra.61+0x4a/0xb0 > > [ 7.393804] [] ? get_modinfo.isra.56+0x46/0xa0 > > [ 7.394880] [] load_module+0xc57/0x2700 > > [ 7.395948] [] ? ima_post_read_file+0x74/0x90 > > [ 7.397015] [] ? security_kernel_post_read_file+0x6b/0x80 > > [ 7.398070] [] ? kernel_read_file+0x172/0x190 > > [ 7.399118] [] SYSC_finit_module+0x96/0xd0 > > [ 7.400169] [] SyS_finit_module+0xe/0x10 > > [ 7.401205] [] entry_SYSCALL_64_fastpath+0x17/0x98 > > [ 7.402242] Code: 01 0f b6 4e ff 48 83 c2 01 84 c9 88 4a ff 75 ed > > 5d c3 0f 1f 00 55 48 89 e5 eb 04 84 c0 74 18 48 83 c7 01 48 83 c6 01 > > 0f b6 47 ff <3a> 46 ff 74 eb 19 c0 5d 83 c8 01 c3 31 c0 5d c3 66 2e 0f > > 1f 84 > > [ 7.403491] RIP [] strcmp+0x16/0x30 > > [ 7.404605] RSP > > [ 7.405706] CR2: 000000002c000000 > > [ 7.406815] ---[ end trace 5658e0e68fb01f05 ]--- > > > > > > Thanks > > Kui.Z > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html