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Date: Thu, 27 Apr 2017 09:31:48 +0800
From: kbuild test robot <lkp@...el.com>
To: Kees Cook <keescook@...omium.org>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org,
Kees Cook <keescook@...omium.org>,
Peter Zijlstra <peterz@...radead.org>,
PaX Team <pageexec@...email.hu>, Jann Horn <jannh@...gle.com>,
Eric Biggers <ebiggers3@...il.com>,
Christoph Hellwig <hch@...radead.org>,
"axboe@...nel.dk" <axboe@...nel.dk>,
James Bottomley <James.Bottomley@...senpartnership.com>,
Elena Reshetova <elena.reshetova@...el.com>,
Hans Liljestrand <ishkamiel@...il.com>,
David Windsor <dwindsor@...il.com>,
"x86@...nel.org" <x86@...nel.org>, Ingo Molnar <mingo@...nel.org>,
Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"David S. Miller" <davem@...emloft.net>,
Rik van Riel <riel@...hat.com>,
linux-arch <linux-arch@...r.kernel.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>
Subject: Re: [PATCH v2 2/2] x86, refcount: Implement fast refcount overflow
protection
Hi Kees,
[auto build test WARNING on next-20170424]
[cannot apply to tip/x86/core linus/master linux/master v4.9-rc8 v4.9-rc7 v4.9-rc6 v4.11-rc8]
[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/Kees-Cook/x86-refcount-Implement-fast-refcount-overflow/20170426-210530
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All warnings (new ones prefixed by >>):
>> drivers//scsi/scsi_scan.o: warning: objtool: .text.refcount_overflow+0x5: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> drivers/scsi/qla2xxx/qla_target.o: warning: objtool: .text.refcount_overflow+0x23: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> drivers/nvme/target/core.o: warning: objtool: .text.refcount_overflow+0x19: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> drivers/nvme/target/rdma.o: warning: objtool: .text.refcount_overflow+0x5: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> drivers/nvme/target/fcloop.o: warning: objtool: .text.refcount_overflow+0x6: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> net/batman-adv/bat_v.o: warning: objtool: .text.refcount_underflow+0xc: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> net/batman-adv/bat_v_elp.o: warning: objtool: .text.refcount_overflow+0xa: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> net/batman-adv/fragmentation.o: warning: objtool: .text.refcount_overflow+0xa: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> net/batman-adv/icmp_socket.o: warning: objtool: .text.refcount_overflow+0xb: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> net/batman-adv/main.o: warning: objtool: .text.refcount_overflow+0xb: special: can't find orig instruction
--
/kbuild/src/consumer/include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> net/batman-adv/multicast.o: warning: objtool: .text.refcount_overflow+0xf: special: can't find orig instruction
..
---
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