Hi all,
I got a kernel panic with the trace:
[ 0.370825] smpboot: CPU0: AMD G-T40E Processor (fam: 14, model: 02,
stepping: 00)
[ 0.378560] Performance Events: AMD PMU driver.
[ 0.383187] ... version: 0
[ 0.387204] ... bit width: 48
[ 0.391313] ... generic registers: 4
[ 0.395333] ... value mask: 0000ffffffffffff
[ 0.400656] ... max period: 00007fffffffffff
[ 0.405977] ... fixed-purpose events: 0
[ 0.409999] ... event mask: 000000000000000f
[ 0.417579] NMI watchdog: enabled on all CPUs, permanently consumes one
hw-PMU counter.
[ 0.426082] x86: Booting SMP configuration:
[ 0.430330] .... node #0, CPUs: #1
[ 0.447454] x86: Booted up 1 node, 2 CPUs
[ 0.451681] smpboot: Total of 2 processors activated (3999.93 BogoMIPS)
[ 0.458314] BUG: unable to handle kernel NULL pointer dereference at
(null)
[ 0.466195] IP: [< (null)>] (null)
[ 0.471276] PGD 0
[ 0.473322] Oops: 0010 [#1] SMP
[ 0.476605] Modules linked in:
[ 0.479694] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
4.2.5-300.fc23.x86_64 #1
[ 0.486919] Hardware name: PC Engines APU, BIOS
SageBios_PCEngines_APU-45 04/05/2014
[ 0.494659] task: ffff880119b80000 ti: ffff880119adc000 task.ti:
ffff880119adc000
[ 0.502139] RIP: 0010:[<0000000000000000>] [< (null)>]
(null)
[ 0.509644] RSP: 0018:ffff880119adfe40 EFLAGS: 00010246
[ 0.514955] RAX: ffff88011a005438 RBX: 0000000000000000 RCX:
ffffffff81d2ece0
[ 0.522090] RDX: 0000000000000000 RSI: ffff88011a005438 RDI:
ffff88011a02e808
[ 0.529221] RBP: ffff880119adfe68 R08: 0000000000000000 R09:
ffff880119c00000
[ 0.536354] R10: 0000000000000000 R11: 00000000000000bf R12:
0000000000000002
[ 0.543484] R13: ffffffff81f0cb00 R14: ffff88011a02e808 R15:
0000000000000000
[ 0.550622] FS: 0000000000000000(0000) GS:ffff88011ec00000(0000)
knlGS:0000000000000000
[ 0.558713] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 0.564460] CR2: 0000000000000000 CR3: 0000000001c0b000 CR4:
00000000000006f0
[ 0.571592] Stack:
[ 0.573612] ffffffff81d6e53d 00000000001e8460 000000000000a040
ffffffff81d30200
[ 0.581107] 0000000000000000 ffff880119adfe88 ffffffff81d6a8a2
0000000000000002
[ 0.588602] 0000000000000002 ffff880119adfeb8 ffffffff81d7cc1f
0000000000000000
[ 0.596099] Call Trace:
[ 0.598565] [<ffffffff81d6e53d>] ? setup_ioapic_dest+0xc3/0xeb
[ 0.604495] [<ffffffff81d6a8a2>] native_smp_cpus_done+0xfb/0x105
[ 0.610600] [<ffffffff81d7cc1f>] smp_init+0x62/0x82
[ 0.615575] [<ffffffff81d57153>] kernel_init_freeable+0x105/0x228
[ 0.621760] [<ffffffff81768f50>] ? rest_init+0x80/0x80
[ 0.626992] [<ffffffff81768f5e>] kernel_init+0xe/0xe0
[ 0.632145] [<ffffffff817795df>] ret_from_fork+0x3f/0x70
[ 0.637548] [<ffffffff81768f50>] ? rest_init+0x80/0x80
[ 0.642779] Code: Bad RIP value.
[ 0.646150] RIP [< (null)>] (null)
[ 0.651317] RSP <ffff880119adfe40>
[ 0.654809] CR2: 0000000000000000
[ 0.658144] ---[ end trace 830735da38a70b70 ]---
[ 0.662806] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x00000009
[ 0.662806]
[ 0.671998] ---[ end Kernel panic - not syncing: Attempted to kill
init! exitcode=0x00000009
This is the x86_64 kernel.4.2.5-300.fc23.
[ 0.000000] Linux version 4.2.5-300.fc23.x86_64
(mockbuild@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 5.1.1 20150618
(Red Hat 5.1.1-4) (GCC) ) #1 SMP Tue Oct 27 04:29:56 UTC 2015
[ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-4.2.5-300.fc23.x86_64
root=UUID=589968d6-2283-4903-8699-1b23f5c341a5 ro console=ttyS0,115200n8
This machine was yum/dnf updated from f21 to f22 and then f23. The same
kernel on the f22 had the same behavior.
The kernel x86_64 4.1.10-100.fc21 is working.
The following log is from working kernel:
[ 0.452476] smpboot: Total of 2 processors activated (4000.29 BogoMIPS)
[ 0.460310] devtmpfs: initialized
[ 0.477700] clocksource jiffies: mask: 0xffffffff max_cycles:
0xffffffff, max_idle_ns: 1911260446275000 ns
I reinstalled the kernel, regenerate the initramfs. This same initramfs is
booting fine on another (different hw) f23 machine.
I don't know where to look further. I can open a bugzilla bug report, but
I am not fully convinced that it is only a kernel bug.
_______________________________________________
kernel mailing list
kernel@xxxxxxxxxxxxxxxxxxxxxxx
https://admin.fedoraproject.org/mailman/listinfo/kernel
