linux-kernel - WARNING: CPU: 12 PID: 16862 at ./arch/x86/include/asm/thread

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Message-ID: <565C775C.9050004@oracle.com>
Date:	Mon, 30 Nov 2015 11:20:44 -0500
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Ingo Molnar <mingo@...nel.org>, Al Viro <viro@...IV.linux.org.uk>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: WARNING: CPU: 12 PID: 16862 at
 ./arch/x86/include/asm/thread_info.h:236

Hi all,

I've hit the following while fuzzing with trinity on the latest -next kernel:

[  587.536319] WARNING: CPU: 12 PID: 16862 at ./arch/x86/include/asm/thread_info.h:236 sigsuspend+0x194/0x1b0()
[  587.540863] Modules linked in:
[  587.541742] CPU: 12 PID: 16862 Comm: trinity-c421 Not tainted 4.4.0-rc2-next-20151127-sasha-00011-g1ca161c-dirty #2660
[  587.543554]  0000000000000000 000000002c914859 ffff8806e3347e38 ffffffff9ea923db
[  587.545672]  0000000000000000 ffff8800c8032000 ffffffffa64a5120 ffff8806e3347e78
[  587.547042]  ffffffff9d2e00d9 ffffffff9d307334 ffffffffa64a5120 00000000000000ec
[  587.549585] Call Trace:
[  587.550261]  [<ffffffff9ea923db>] dump_stack+0x72/0xb7
[  587.551125]  [<ffffffff9d2e00d9>] warn_slowpath_common+0x109/0x130
[  587.553088]  [<ffffffff9d2e0329>] warn_slowpath_null+0x29/0x30
[  587.554164]  [<ffffffff9d307334>] sigsuspend+0x194/0x1b0
[  587.555116]  [<ffffffff9d30b47b>] SyS_rt_sigsuspend+0xbb/0x110
[  587.561511]  [<ffffffffa61fbbd5>] entry_SYSCALL_64_fastpath+0x35/0x99
[  587.563289] ---[ end trace 76d0b7c8c18c2a7d ]---


Thanks,
Sasha
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