Hi Greg,
On Mon, Jan 8, 2018 at 2:46 AM, Greg Kroah-Hartman <gre...@linuxfoundation.org> wrote: > On Sun, Jan 07, 2018 at 10:06:59AM -0500, Pavel Tatashin wrote: >> Hi Greg, >> >> I reverted suse12 back to: >> 13dae54cb229d078635f159dd8afe16ae683980b >> x86/kaiser: Move feature detection up (bsc#1068032). >> >> And, still do not see the problem. So, whatever fixes the issue comes >> before kaiser. > > Ok, thanks for the hint. > > As I can't duplicate this here at all, any specifics as to what > hardware/procesor type this is? > BIOS: Version 2.17.1249. Copyright (C) 2016 American Megatrends, Inc. BIOS Date: 08/30/2016 10:35:36 Ver: 38050100 ca-ostest442:linux-stable$ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 40 On-line CPU(s) list: 0-39 Thread(s) per core: 2 Core(s) per socket: 10 Socket(s): 2 NUMA node(s): 2 Vendor ID: GenuineIntel CPU family: 6 Model: 79 Model name: Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz Stepping: 1 CPU MHz: 1738.601 BogoMIPS: 4396.18 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 25600K NUMA node0 CPU(s): 0-9,20-29 NUMA node1 CPU(s): 10-19,30-39 Note, if I boot with nr_cpus=1, hang never happens, with nr_cpus=4 happens but seldomly, and with all 40 CPUs happens on almost every reboot. As Hugh Dickins suggested, I am going to show panic outputs, as I get them. Here is one more panic (note output is not complete because machine reboots): [ 6.276456] EFI Variables Facility v0.08 2004-May-17 [ 6.384665] BUG: unable to handle kernel paging request at ffff901fff5a6000 [ 6.392461] IP: [<ffffffff8106bb08>] vmalloc_fault+0x1f8/0x340 [ 6.398987] PGD 0 [ 6.401242] Oops: 0000 [#1] SMP [ 6.404866] Modules linked in: [ 6.408287] CPU: 10 PID: 0 Comm: swapper/10 Not tainted 4.4.110_pt_stable #2 [ 6.416156] Hardware name: Oracle Corporation ORACLE SERVER X6-2/ASM,MOTHERBOARD,1U, BIOS 3 8050100 08/30/2016 [ 6.427226] task: ffff883ff1e28000 ti: ffff883ff1e24000 task.ti: ffff883ff1e24000 [ 6.435580] RIP: 0010:[<ffffffff8106bb08>] [<ffffffff8106bb08>] vmalloc_fault+0x1f8/0x340 [ 6.444819] RSP: 0000:ffff883ff1e27cc0 EFLAGS: 00010086 [ 6.450749] RAX: ffff881fff5a6058 RBX: 00003ffffffff000 RCX: 0000081fff5a6000 [ 6.458714] RDX: ffff880000000000 RSI: ffff901fff5a6000 RDI: 0000000000000000 [ 6.466681] RBP: ffff883ff1e27cf0 R08: 0000000000000018 R09: 000000000002d2de [ 6.474647] R10: 0000000000032ef3 R11: 0000000000002e04 R12: ffffc900000000f0 [ 6.482615] R13: ffff880000000000 R14: ffff901fff5a6000 R15: ffff881fff5a6000 [ 6.490574] FS: 0000000000000000(0000) GS:ffff88407e600000(0000) knlGS:0000000000000000 [ 6.499607] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.506022] CR2: ffff901fff5a6000 CR3: 0000000001aa2000 CR4: 0000000000360670 [ 6.513989] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6.521956] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6.529923] Stack: [ 6.532169] ffff881fff5a6000[ 6.532405] ------------[ cut here ]------------ [ 6.532414] WARNING: CPU: 22 PID: 162
