On Mon, Jun 03, 2019 at 01:02:20AM -0700, Andrei Vagin wrote: > Hello all, > > I tried to boot linux-next in a kvm virtual machine, but it always panics: > > [ 5.897542] general protection fault: 0000 [#1] SMP PTI > [ 5.898716] CPU: 0 PID: 1 Comm: swapper/0 Not tainted > 5.2.0-rc3-next-20190603-00001-g13841016de38 #1 > [ 5.900872] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), > BIOS ?-20180724_192412-buildhw-07.phx2.fedoraproject.org-1.fc29 > 04/01/2014 > [ 5.903238] RIP: 0010:__free_vmap_area+0x7b/0x340 > [ 5.904070] Code: ad de 48 89 5d 20 48 89 45 38 48 83 c0 22 48 89 > 45 40 48 8b 05 0e 24 77 02 48 85 c0 0f 84 9e 02 00 00 48 8b 7d 00 48 > 8b 75 08 <48> 8b 50 e0 48 3b 78 e8 73 07 48 39 f2 73 19 0f 0b 48 39 f2 > 73 f9 > [ 5.907811] RSP: 0000:ffffb92f80637db0 EFLAGS: 00010202 > [ 5.908883] RAX: 6b6b6b6b6b6b6b6b RBX: ffff8f6838de9460 RCX: 6b6b6b6b6b6b6b6b > [ 5.910349] RDX: ffff8f6838de9a80 RSI: ffffb92f81281000 RDI: ffffb92f8127c000 > [ 5.911766] RBP: ffff8f6838de9440 R08: ffff8f6838de9280 R09: ffff8f6838de9550 > [ 5.913138] R10: ffff8f6838de95c8 R11: 0000000000000000 R12: ffff8f6838de93c8 > [ 5.914594] R13: 0000000000008000 R14: ffffffff8b9fb8b0 R15: ffffffff8a61771b > [ 5.916362] FS: 0000000000000000(0000) GS:ffff8f683ba00000(0000) > knlGS:0000000000000000 > [ 5.918360] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 5.919926] CR2: 0000000000000000 CR3: 000000006581e001 CR4: 00000000003606f0 > [ 5.921482] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 5.923032] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 5.924642] Call Trace: > [ 5.925358] __purge_vmap_area_lazy+0xd0/0x170 > [ 5.926543] _vm_unmap_aliases+0x1c6/0x200 > [ 5.927498] change_page_attr_set_clr+0xbc/0x2d0 > [ 5.928540] set_memory_nx+0x37/0x40 > [ 5.929294] free_init_pages+0x53/0x90 > [ 5.930110] free_kernel_image_pages+0x1f/0x40 > [ 5.931064] ? rest_init+0x24c/0x24c > [ 5.931832] kernel_init+0x19/0x104 > [ 5.932585] ret_from_fork+0x3a/0x50 > [ 5.933326] Modules linked in: > [ 5.934015] ---[ end trace 07dd6f9c635fabc2 ]--- > [ 5.934992] RIP: 0010:__free_vmap_area+0x7b/0x340 > > The kernel config is attached. Let me know if you need any additional > information. > > Thanks, > Andrei Hello, Andrei. I have some questions. Are you able to see the entire kernel log? I mean what happened before 5.897542 time-stamp. Also, could you please provide details how you run your KVM machine? Thank you in advance! -- Vlad Rezki
