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Message-ID: <5570FA36.9050002@intel.com>
Date: Fri, 05 Jun 2015 09:24:06 +0800
From: Huang Ying <ying.huang@...el.com>
To: Frederic Weisbecker <fweisbec@...il.com>
CC: Ingo Molnar <mingo@...nel.org>,
LKML <linux-kernel@...r.kernel.org>, LKP ML <lkp@...org>
Subject: [lkp] [sched/preempt] b30f0e3ffed: kernel BUG at kernel/sched/core.c:2662!
FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit b30f0e3ffedfa52b1d67a302ae5860c49998e5e2 ("sched/preempt: Optimize preemption operations on __schedule() callers")
+-------------------------------------------------+------------+------------+
| | 90b62b5129 | b30f0e3ffe |
+-------------------------------------------------+------------+------------+
| boot_successes | 10 | 0 |
| boot_failures | 30 | 40 |
| BUG:kernel_early_hang_without_any_printk_output | 2 | |
| IP-Config:Auto-configuration_of_network_failed | 27 | |
| BUG:kernel_boot_hang | 1 | 3 |
| BUG:kernel_boot_crashed | 0 | 9 |
| kernel_BUG_at_kernel/sched/core.c | 0 | 23 |
| invalid_opcode | 0 | 25 |
| RIP:__schedule | 0 | 26 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 28 |
| BUG:unable_to_handle_kernel | 0 | 2 |
| Oops | 0 | 2 |
| RIP:uprobe_get_trap_addr | 0 | 1 |
| RIP:ftrace_push_return_trace | 0 | 1 |
+-------------------------------------------------+------------+------------+
[ 0.220173] ------------[ cut here ]------------
[ 0.220173] ------------[ cut here ]------------
[ 0.222999] kernel BUG at kernel/sched/core.c:2662!
[ 0.222999] kernel BUG at kernel/sched/core.c:2662!
[ 0.223333] invalid opcode: 0000 [#1]
[ 0.223333] invalid opcode: 0000 [#1] PREEMPT PREEMPT
[ 0.223333] Modules linked in:
[ 0.223333] Modules linked in:
[ 0.223333] CPU: 0 PID: 0 Comm: swapper Not tainted 4.1.0-rc6-next-20150603 #118
[ 0.223333] CPU: 0 PID: 0 Comm: swapper Not tainted 4.1.0-rc6-next-20150603 #118
[ 0.223333] task: ffffffff81a13580 ti: ffffffff81a00000 task.ti: ffffffff81a00000
[ 0.223333] task: ffffffff81a13580 ti: ffffffff81a00000 task.ti: ffffffff81a00000
[ 0.223333] RIP: 0010:[<ffffffff8153d157>]
[ 0.223333] RIP: 0010:[<ffffffff8153d157>] [<ffffffff8153d157>] __schedule+0x67/0xd60
[<ffffffff8153d157>] __schedule+0x67/0xd60
[ 0.223333] RSP: 0000:ffffffff81902ec8 EFLAGS: 00010202
[ 0.223333] RSP: 0000:ffffffff81902ec8 EFLAGS: 00010202
[ 0.223333] RAX: ffffffff81a13580 RBX: 0000000000000001 RCX: 0000000000000e90
[ 0.223333] RAX: ffffffff81a13580 RBX: 0000000000000001 RCX: 0000000000000e90
[ 0.223333] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff81af8548
[ 0.223333] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff81af8548
[ 0.223333] RBP: ffffffff81902f08 R08: 0000000000000e5c R09: 0000000000000000
[ 0.223333] RBP: ffffffff81902f08 R08: 0000000000000e5c R09: 0000000000000000
[ 0.223333] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 0.223333] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 0.223333] R13: 0000000000000000 R14: ffffffff828f9f80 R15: 0000000000000246
[ 0.223333] R13: 0000000000000000 R14: ffffffff828f9f80 R15: 0000000000000246
[ 0.223333] FS: 0000000000000000(0000) GS:ffffffff81a1f000(0000) knlGS:0000000000000000
[ 0.223333] FS: 0000000000000000(0000) GS:ffffffff81a1f000(0000) knlGS:0000000000000000
[ 0.223333] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 0.223333] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 0.223333] CR2: 00000000ffffffff CR3: 0000000001a0e000 CR4: 00000000000006b0
[ 0.223333] CR2: 00000000ffffffff CR3: 0000000001a0e000 CR4: 00000000000006b0
[ 0.223333] Stack:
[ 0.223333] Stack:
[ 0.223333] ffffffff81902ed8
[ 0.223333] ffffffff81902ed8 ffffffff81a13580 ffffffff81a13580 ffffffff81902ef8 ffffffff81902ef8 0000000000000001 0000000000000001
[ 0.223333] ffffffff81a04000
[ 0.223333] ffffffff81a04000 ffff880034174000 ffff880034174000 ffffffff828f9f80 ffffffff828f9f80 0000000000000246 0000000000000246
[ 0.223333] ffffffff81902f28
[ 0.223333] ffffffff81902f28 ffffffff81546d48 ffffffff81546d48 0000000000000001 0000000000000001 ffffffff81903001 ffffffff81903001
[ 0.223333] Call Trace:
[ 0.223333] Call Trace:
[ 0.223333] <UNK>
[ 0.223333] <UNK>
[ 0.223333] Code:
[ 0.223333] Code: 30 30 9d 9d 6e 6e ac ac 57 57 0f 0f 95 95 c3 c3 31 31 d2 d2 44 44 0f 0f b6 b6 e3 e3 44 44 89 89 e6 e6 e8 e8 0e 0e f3 f3 c0 c0 ff ff 31 31 d2 d2 44 44 89 89 e6 e6 48 48 c7 c7 c7 c7 48 48 85 85 af af 81 81 e8 e8 fd fd f2 f2 c0 c0 ff ff 84 84 db db 74 74 02 02 <0f> <0f> 0b 0b 8b 8b 05 05 f9 f9 0e 0e 4e 4e 00 00 25 25 ff ff ff ff df df 7f 7f 48 48 83 83 f8 f8 01 01 0f 0f 84 84 e5 e5 05 05
[ 0.223333] RIP
[ 0.223333] RIP [<ffffffff8153d157>] __schedule+0x67/0xd60
[<ffffffff8153d157>] __schedule+0x67/0xd60
[ 0.223333] RSP <ffffffff81902ec8>
[ 0.223333] RSP <ffffffff81902ec8>
[ 0.223366] ---[ end trace d4c7c0937a143ac5 ]---
[ 0.223366] ---[ end trace d4c7c0937a143ac5 ]---
Thanks,
Ying Huang
-------------------------------------
lkp@...ists.intel.com
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View attachment "config-4.1.0-rc4-00025-gb30f0e3" of type "text/plain" (76551 bytes)
View attachment ".dmesg" of type "text/plain" (35496 bytes)
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