From: kbuild test robot <lkp@intel.com>
To: Abbott Liu <liuwenliang@huawei.com>
Cc: kbuild-all@01.org, linux@armlinux.org.uk,
aryabinin@virtuozzo.com, marc.zyngier@arm.com,
kstewart@linuxfoundation.org, gregkh@linuxfoundation.org,
f.fainelli@gmail.com, liuwenliang@huawei.com,
akpm@linux-foundation.org, afzal.mohd.ma@gmail.com,
alexander.levin@verizon.com, glider@google.com,
dvyukov@google.com, christoffer.dall@linaro.org,
linux@rasmusvillemoes.dk, mawilcox@microsoft.com,
pombredanne@nexb.com, ard.biesheuvel@linaro.org,
vladimir.murzin@arm.com, nicolas.pitre@linaro.org,
tglx@linutronix.de, thgarnie@google.com, dhowells@redhat.com,
keescook@chromium.org, arnd@arndb.de, geert@linux-m68k.org,
tixy@linaro.org, mark.rutland@arm.com, james.morse@arm.com,
zhichao.huang@linaro.org, jinb.park7@gmail.com,
labbott@redhat.com, philip@cog.systems,
grygorii.strashko@linaro.org, catalin.marinas@arm.com,
opendmb@gmail.com, kirill.shutemov@linux.intel.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com,
kvmarm@lists.cs.columbia.edu, linux-mm@kvack.org
Subject: Re: [PATCH 7/7] Enable KASan for arm
Date: Tue, 20 Mar 2018 04:43:16 +0800 [thread overview]
Message-ID: <201803200442.ZvlcJvVm%fengguang.wu@intel.com> (raw)
In-Reply-To: <20180318125342.4278-8-liuwenliang@huawei.com>
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Hi Andrey,
I love your patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v4.16-rc6]
[cannot apply to next-20180319]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Abbott-Liu/KASan-for-arm/20180319-120138
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm
All errors (new ones prefixed by >>):
arch/arm/kernel/entry-common.S: Assembler messages:
>> arch/arm/kernel/entry-common.S:85: Error: invalid constant (ffffffffb6e00000) after fixup
vim +85 arch/arm/kernel/entry-common.S
^1da177e4 Linus Torvalds 2005-04-16 68
3302caddf Russell King 2015-08-20 69 /* Ok, we need to do extra processing, enter the slow path. */
^1da177e4 Linus Torvalds 2005-04-16 70 fast_work_pending:
^1da177e4 Linus Torvalds 2005-04-16 71 str r0, [sp, #S_R0+S_OFF]! @ returned r0
3302caddf Russell King 2015-08-20 72 /* fall through to work_pending */
3302caddf Russell King 2015-08-20 73 #else
3302caddf Russell King 2015-08-20 74 /*
3302caddf Russell King 2015-08-20 75 * The "replacement" ret_fast_syscall for when tracing or context tracking
3302caddf Russell King 2015-08-20 76 * is enabled. As we will need to call out to some C functions, we save
3302caddf Russell King 2015-08-20 77 * r0 first to avoid needing to save registers around each C function call.
3302caddf Russell King 2015-08-20 78 */
3302caddf Russell King 2015-08-20 79 ret_fast_syscall:
3302caddf Russell King 2015-08-20 80 UNWIND(.fnstart )
3302caddf Russell King 2015-08-20 81 UNWIND(.cantunwind )
3302caddf Russell King 2015-08-20 82 str r0, [sp, #S_R0 + S_OFF]! @ save returned r0
3302caddf Russell King 2015-08-20 83 disable_irq_notrace @ disable interrupts
e33f8d326 Thomas Garnier 2017-09-07 84 ldr r2, [tsk, #TI_ADDR_LIMIT]
e33f8d326 Thomas Garnier 2017-09-07 @85 cmp r2, #TASK_SIZE
e33f8d326 Thomas Garnier 2017-09-07 86 blne addr_limit_check_failed
3302caddf Russell King 2015-08-20 87 ldr r1, [tsk, #TI_FLAGS] @ re-check for syscall tracing
2404269bc Thomas Garnier 2017-09-07 88 tst r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
3302caddf Russell King 2015-08-20 89 beq no_work_pending
3302caddf Russell King 2015-08-20 90 UNWIND(.fnend )
3302caddf Russell King 2015-08-20 91 ENDPROC(ret_fast_syscall)
3302caddf Russell King 2015-08-20 92
3302caddf Russell King 2015-08-20 93 /* Slower path - fall through to work_pending */
3302caddf Russell King 2015-08-20 94 #endif
3302caddf Russell King 2015-08-20 95
3302caddf Russell King 2015-08-20 96 tst r1, #_TIF_SYSCALL_WORK
3302caddf Russell King 2015-08-20 97 bne __sys_trace_return_nosave
3302caddf Russell King 2015-08-20 98 slow_work_pending:
^1da177e4 Linus Torvalds 2005-04-16 99 mov r0, sp @ 'regs'
^1da177e4 Linus Torvalds 2005-04-16 100 mov r2, why @ 'syscall'
0a267fa6a Al Viro 2012-07-19 101 bl do_work_pending
662852178 Al Viro 2012-07-19 102 cmp r0, #0
81783786d Al Viro 2012-07-19 103 beq no_work_pending
662852178 Al Viro 2012-07-19 104 movlt scno, #(__NR_restart_syscall - __NR_SYSCALL_BASE)
81783786d Al Viro 2012-07-19 105 ldmia sp, {r0 - r6} @ have to reload r0 - r6
81783786d Al Viro 2012-07-19 106 b local_restart @ ... and off we go
e83dd3770 Drew Richardson 2015-08-06 107 ENDPROC(ret_fast_syscall)
81783786d Al Viro 2012-07-19 108
:::::: The code at line 85 was first introduced by commit
:::::: e33f8d32677fa4f4f8996ef46748f86aac81ccff arm/syscalls: Optimize address limit check
:::::: TO: Thomas Garnier <thgarnie@google.com>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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next prev parent reply other threads:[~2018-03-19 20:44 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-18 12:53 [PATCH v2 0/7] " Abbott Liu
2018-03-18 12:53 ` [PATCH 1/7] 2 1-byte checks more safer for memory_is_poisoned_16 Abbott Liu
2018-03-18 13:21 ` Russell King - ARM Linux
2018-03-18 12:53 ` [PATCH 2/7] Add TTBR operator for kasan_init Abbott Liu
2018-03-18 12:53 ` [PATCH 3/7] Disable instrumentation for some code Abbott Liu
2018-03-19 8:38 ` Marc Zyngier
2018-03-18 12:53 ` [PATCH 4/7] Replace memory function for kasan Abbott Liu
2018-03-18 12:53 ` [PATCH 5/7] Define the virtual space of KASan's shadow region Abbott Liu
2018-03-18 12:53 ` [PATCH 6/7] Initialize the mapping of KASan shadow memory Abbott Liu
2018-03-18 12:53 ` [PATCH 7/7] Enable KASan for arm Abbott Liu
2018-03-19 20:43 ` kbuild test robot [this message]
2018-03-18 19:13 ` [PATCH v2 0/7] " Florian Fainelli
2018-03-19 18:29 ` Florian Fainelli
2018-03-25 23:58 ` Joel Stanley
2018-03-24 13:55 [PATCH 7/7] Enable " Liuwenliang (Abbott Liu)
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