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Message-ID: <878u6galgq.fsf@yhuang-dev.intel.com>
Date: Mon, 02 Nov 2015 15:50:45 +0800
From: kernel test robot <ying.huang@...ux.intel.com>
TO: Andy Lutomirski <luto@...nel.org>
CC: LKML <linux-kernel@...r.kernel.org>
Subject: [lkp] [x86/entry/64] 21e1317765: WARNING: CPU: 0 PID: 1 at
kernel/locking/lockdep.c:3519 check_flags+0x1f6/0x200()
FYI, we noticed the below changes on
https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/entry_compat
commit 21e1317765f4e19c6bfe63a148d41cc665aa0977 ("x86/entry/64: Fix irqflag tracing wrt context tracking")
+----------------------------------------------------+------------+------------+
| | 7df46d0040 | 21e1317765 |
+----------------------------------------------------+------------+------------+
| boot_successes | 15 | 0 |
| boot_failures | 0 | 13 |
| WARNING:at_kernel/locking/lockdep.c:#check_flags() | 0 | 13 |
| backtrace:async_page_fault | 0 | 13 |
| backtrace:futex_init | 0 | 13 |
| backtrace:kernel_init_freeable | 0 | 13 |
| BUG:kernel_boot_hang | 0 | 3 |
+----------------------------------------------------+------------+------------+
[ 3.845227] futex hash table entries: 256 (order: 3, 32768 bytes)
[ 3.846772] ------------[ cut here ]------------
[ 3.846772] ------------[ cut here ]------------
[ 3.847933] WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3519 check_flags+0x1f6/0x200()
[ 3.847933] WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3519 check_flags+0x1f6/0x200()
[ 3.848019] DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)
[ 3.848019] DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)
[ 3.848019] Modules linked in:
[ 3.848019] Modules linked in:
[ 3.848019] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.3.0-rc4-00078-g21e1317 #1
[ 3.848019] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.3.0-rc4-00078-g21e1317 #1
[ 3.848019] ffffffff817321b8
[ 3.848019] ffffffff817321b8 ffff8800001f7bb8 ffff8800001f7bb8 ffffffff812a0eeb ffffffff812a0eeb ffff8800001f7c00 ffff8800001f7c00
[ 3.848019] ffff8800001f7bf0
[ 3.848019] ffff8800001f7bf0 ffffffff810858e2 ffffffff810858e2 ffff8800001f0000 ffff8800001f0000 ffffffff81811c40 ffffffff81811c40
[ 3.848019] 0000000000000086
[ 3.848019] 0000000000000086 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffff8800001f7c50 ffff8800001f7c50
[ 3.848019] Call Trace:
[ 3.848019] Call Trace:
[ 3.848019] [<ffffffff812a0eeb>] dump_stack+0x4b/0x70
[ 3.848019] [<ffffffff812a0eeb>] dump_stack+0x4b/0x70
[ 3.848019] [<ffffffff810858e2>] warn_slowpath_common+0x82/0xc0
[ 3.848019] [<ffffffff810858e2>] warn_slowpath_common+0x82/0xc0
[ 3.848019] [<ffffffff8108596c>] warn_slowpath_fmt+0x4c/0x50
[ 3.848019] [<ffffffff8108596c>] warn_slowpath_fmt+0x4c/0x50
[ 3.848019] [<ffffffff810e534c>] ? do_raw_spin_unlock+0x10c/0x170
[ 3.848019] [<ffffffff810e534c>] ? do_raw_spin_unlock+0x10c/0x170
[ 3.848019] [<ffffffff810dd8d6>] check_flags+0x1f6/0x200
[ 3.848019] [<ffffffff810dd8d6>] check_flags+0x1f6/0x200
[ 3.848019] [<ffffffff810de34c>] lock_is_held+0x4c/0xa0
[ 3.848019] [<ffffffff810de34c>] lock_is_held+0x4c/0xa0
[ 3.848019] [<ffffffff8104c800>] ? native_write_cr0+0x10/0x10
[ 3.848019] [<ffffffff8104c800>] ? native_write_cr0+0x10/0x10
[ 3.848019] [<ffffffff810f6e29>] rcu_read_lock_sched_held+0x79/0xc0
[ 3.848019] [<ffffffff810f6e29>] rcu_read_lock_sched_held+0x79/0xc0
[ 3.848019] [<ffffffff8104c800>] ? native_write_cr0+0x10/0x10
[ 3.848019] [<ffffffff8104c800>] ? native_write_cr0+0x10/0x10
[ 3.848019] [<ffffffff81052e63>] trace_do_page_fault+0x213/0x280
[ 3.848019] [<ffffffff81052e63>] trace_do_page_fault+0x213/0x280
[ 3.848019] [<ffffffff8104c02c>] do_async_page_fault+0x1c/0x100
[ 3.848019] [<ffffffff8104c02c>] do_async_page_fault+0x1c/0x100
[ 3.848019] [<ffffffff814ea4b8>] async_page_fault+0x28/0x30
[ 3.848019] [<ffffffff814ea4b8>] async_page_fault+0x28/0x30
[ 3.848019] [<ffffffff8111b5f0>] ? cmpxchg_futex_value_locked+0x90/0x110
[ 3.848019] [<ffffffff8111b5f0>] ? cmpxchg_futex_value_locked+0x90/0x110
[ 3.848019] [<ffffffff81949c23>] ? tk_debug_sleep_time_init+0x3c/0x3c
[ 3.848019] [<ffffffff81949c23>] ? tk_debug_sleep_time_init+0x3c/0x3c
[ 3.848019] [<ffffffff81949ca8>] futex_init+0x85/0xe7
[ 3.848019] [<ffffffff81949ca8>] futex_init+0x85/0xe7
[ 3.848019] [<ffffffff81000369>] do_one_initcall+0x99/0x260
[ 3.848019] [<ffffffff81000369>] do_one_initcall+0x99/0x260
[ 3.848019] [<ffffffff810abe00>] ? parse_args+0x1d0/0x420
[ 3.848019] [<ffffffff810abe00>] ? parse_args+0x1d0/0x420
[ 3.848019] [<ffffffff81930390>] kernel_init_freeable+0x1dd/0x25e
[ 3.848019] [<ffffffff81930390>] kernel_init_freeable+0x1dd/0x25e
[ 3.848019] [<ffffffff814d8360>] ? rest_init+0x140/0x140
[ 3.848019] [<ffffffff814d8360>] ? rest_init+0x140/0x140
[ 3.848019] [<ffffffff814d836e>] kernel_init+0xe/0xe0
[ 3.848019] [<ffffffff814d836e>] kernel_init+0xe/0xe0
[ 3.848019] [<ffffffff814e88ef>] ret_from_fork+0x3f/0x70
[ 3.848019] [<ffffffff814e88ef>] ret_from_fork+0x3f/0x70
[ 3.848019] [<ffffffff814d8360>] ? rest_init+0x140/0x140
[ 3.848019] [<ffffffff814d8360>] ? rest_init+0x140/0x140
[ 3.848019] ---[ end trace fa4c3b1b8f084d8c ]---
[ 3.848019] ---[ end trace fa4c3b1b8f084d8c ]---
Thanks,
Ying Huang
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