hello
Since linux-next-20170329, my qemu virtual machine crash with:
[ 1.409213] Freeing unused kernel memory: 688K
[ 1.414790] Freeing unused kernel memory: 1920K
[ 1.415581] BUG: unable to handle kernel paging request at ffffc753f000f000
[ 1.416808] IP: ptdump_walk_pgd_level_core+0x2d1/0x430
[ 1.417872] PGD 0
[ 1.417873] P4D 0
[ 1.418239]
[ 1.418924] Oops: 0000 [#1] SMP
[ 1.419479] Modules linked in:
[ 1.420046] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.11.0-rc2+ #54
[ 1.421196] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.10.1-0-g8891697-prebuilt.qemu-project.org 04/01/2014
[ 1.423334] task: ffff8802368d0000 task.stack: ffff8802368d8000
[ 1.424386] RIP: 0010:ptdump_walk_pgd_level_core+0x2d1/0x430
[ 1.425407] RSP: 0018:ffff8802368dbe40 EFLAGS: 00010256
[ 1.426337] RAX: ffffc753f000f000 RBX: ffff8802368dbe88 RCX: ffff880000001000
[ 1.427600] RDX: 00003ffffffff000 RSI: ffff880000001000 RDI: f000ff53f000ff53
[ 1.428842] RBP: ffff8802368dbef8 R08: 0000000000000030 R09: 0000000000000000
[ 1.430021] R10: ffffffff81c9cda0 R11: 3931203a79726f6d R12: 0000000000000001
[ 1.431306] R13: 0000000000000000 R14: ffff880000000000 R15: 0000000000000000
[ 1.432427] FS: 0000000000000000(0000) GS:ffff88023fd00000(0000) knlGS:0000000000000000
[ 1.433652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.434741] CR2: ffffc753f000f000 CR3: 0000000001c0b000 CR4: 00000000000006e0
[ 1.435896] Call Trace:
[ 1.436282] ? 0xffffffff81000000
[ 1.436810] ptdump_walk_pgd_level_checkwx+0x12/0x14
[ 1.437636] mark_rodata_ro+0xe9/0xf0
[ 1.438291] ? rest_init+0x80/0x80
[ 1.438891] kernel_init+0x25/0x100
[ 1.439519] ret_from_fork+0x2c/0x40
[ 1.440151] Code: 89 4d 88 48 b9 00 10 00 00 00 88 ff ff 48 01 c8 48 89 85 70 ff ff ff 48 8b 45 80 48 c1 e0 10 48 c1 f8 10 48 89 45 a8 48 8b 45 88 <48> 8b 38 48 f7 c7 9f ff ff ff 0f 84 2d 01 00 00 48 89 f9 81 e1
[ 1.443251] RIP: ptdump_walk_pgd_level_core+0x2d1/0x430 RSP: ffff8802368dbe40
[ 1.444498] CR2: ffffc753f000f000
[ 1.445062] ---[ end trace 35994935752aaa79 ]---
[ 1.445831] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
[ 1.445831]
[ 1.447830] Kernel Offset: disabled
[ 1.448453] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
git bisected the problem to f2a6a7050109e ("x86: Convert the rest of the code to support p4d_t")
I have attached my .config.
Regards
On Fri, Mar 31, 2017 at 09:06:53AM +0200, Corentin Labbe wrote:
> hello
>
> Since linux-next-20170329, my qemu virtual machine crash with:
> [ 1.409213] Freeing unused kernel memory: 688K
> [ 1.414790] Freeing unused kernel memory: 1920K
> [ 1.415581] BUG: unable to handle kernel paging request at ffffc753f000f000
> [ 1.416808] IP: ptdump_walk_pgd_level_core+0x2d1/0x430
https://lkml.kernel.org/r/[email protected]
Reportedly, latest tip/master should be fixed but I haven't tried it
yet.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.