From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f197.google.com (mail-qk0-f197.google.com [209.85.220.197]) by kanga.kvack.org (Postfix) with ESMTP id B1F726B02F4 for ; Thu, 22 Jun 2017 23:27:23 -0400 (EDT) Received: by mail-qk0-f197.google.com with SMTP id y141so13594677qka.13 for ; Thu, 22 Jun 2017 20:27:23 -0700 (PDT) Received: from omr2.cc.vt.edu (omr2.cc.ipv6.vt.edu. [2607:b400:92:8400:0:33:fb76:806e]) by mx.google.com with ESMTPS id p66si2965527qka.166.2017.06.22.20.27.22 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 22 Jun 2017 20:27:22 -0700 (PDT) Received: from mr2.cc.vt.edu (mail.ipv6.vt.edu [IPv6:2607:b400:92:9:0:9d:8fcb:4116]) by omr2.cc.vt.edu (8.14.4/8.14.4) with ESMTP id v5N3RMXS023219 for ; Thu, 22 Jun 2017 23:27:22 -0400 Received: from mail-qk0-f199.google.com (mail-qk0-f199.google.com [209.85.220.199]) by mr2.cc.vt.edu (8.14.7/8.14.7) with ESMTP id v5N3RG0m004316 for ; Thu, 22 Jun 2017 23:27:22 -0400 Received: by mail-qk0-f199.google.com with SMTP id u126so13659165qka.9 for ; Thu, 22 Jun 2017 20:27:22 -0700 (PDT) From: valdis.kletnieks@vt.edu Subject: next-20170620 BUG in do_page_fault / do_huge_pmd_wp_page Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1498188418_9806P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Thu, 22 Jun 2017 23:26:58 -0400 Message-ID: <20815.1498188418@turing-police.cc.vt.edu> Sender: owner-linux-mm@kvack.org List-ID: To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org --==_Exmh_1498188418_9806P Content-Type: text/plain; charset=us-ascii Saw this at boot of next-20170620. Not sure how I managed to hit 4 BUG in a row... Looked in 'git log -- mm/' but not seeing anything blatantly obvious. This ringing any bells? I'm not in a position to recreate or bisect this until the weekend. [ 315.409076] BUG: Bad rss-counter state mm:ffff8a223deb4640 idx:0 val:-512 [ 315.412889] BUG: Bad rss-counter state mm:ffff8a223deb4640 idx:1 val:512 [ 315.416694] BUG: non-zero nr_ptes on freeing mm: 1 [ 315.436098] BUG: Bad page state in process gdm pfn:3e8400 [ 315.439802] page:ffffe8af0fa10000 count:-1 mapcount:0 mapping: (null) index:0x1 [ 315.443264] flags: 0x4000000000000000() [ 315.446715] raw: 4000000000000000 0000000000000000 0000000000000001 ffffffffffffffff [ 315.450181] raw: dead000000000100 dead000000000200 0000000000000000 0000000000000000 [ 315.453628] page dumped because: nonzero _count [ 315.457023] Modules linked in: ts_bm nf_log_ipv4 xt_string nf_log_ipv6 nf_log_common xt_LOG sunrpc vfat fat brcmsmac cordic brcmutil dell _wmi x86_pkg_temp_thermal crct10dif_pclmul dell_laptop crc32_pclmul crc32c_intel dell_smbios ghash_clmulni_intel dell_smm_hwmon cryptd bcma mei_wdt dell_smo8800 dell_rbtn sch_fq tcp_bbr [ 315.457116] CPU: 3 PID: 6684 Comm: gdm Not tainted 4.12.0-rc6-next-20170620 #506 [ 315.457119] Hardware name: Dell Inc. Latitude E6530/07Y85M, BIOS A19 01/04/2017 [ 315.457122] Call Trace: [ 315.457131] dump_stack+0x83/0xd1 [ 315.457141] bad_page+0x10c/0x1b0 [ 315.457151] check_new_page_bad+0x12e/0x180 [ 315.457159] get_page_from_freelist+0x756/0x1840 [ 315.457170] ? native_sched_clock+0x80/0xf0 [ 315.457184] ? find_held_lock+0x38/0x160 [ 315.457194] __alloc_pages_nodemask+0x145/0x5a0 [ 315.457211] do_huge_pmd_wp_page+0x58d/0x1380 [ 315.457217] ? cyc2ns_read_begin+0x82/0xb0 [ 315.457224] ? cyc2ns_read_end+0x22/0x40 [ 315.457229] ? native_sched_clock+0x80/0xf0 [ 315.457236] ? native_sched_clock+0x80/0xf0 [ 315.457247] __handle_mm_fault+0x831/0x14e0 [ 315.457253] ? sched_clock_cpu+0x1b/0x1e0 [ 315.457273] handle_mm_fault+0x23c/0x6f0 [ 315.457283] __do_page_fault+0x460/0x950 [ 315.457298] do_page_fault+0xc/0x10 [ 315.457305] page_fault+0x22/0x30 [ 315.457310] RIP: 0033:0x7fe15390e5c1 [ 315.457314] RSP: 002b:00007ffd2acdca30 EFLAGS: 00010202 [ 315.457320] RAX: 0000000000000000 RBX: 00007ffd2acdca50 RCX: 0000000000000000 [ 315.457324] RDX: 0000000000801000 RSI: 00007fe14bfff9c0 RDI: 00007fe14b7fec10 [ 315.457328] RBP: 00007ffd2acdcac0 R08: 00007fe14b7fed10 R09: 00007fe153b22030 [ 315.457331] R10: 00007fe155346900 R11: 0000000000000202 R12: 0000000000000000 [ 315.457335] R13: 0000000000000000 R14: 0000000000000001 R15: 00007fe155413000 [ 315.457354] Disabling lock debugging due to kernel taint --==_Exmh_1498188418_9806P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Comment: Exmh version 2.8.0 04/21/2017 iQEVAwUBWUyKgo0DS38y7CIcAQKsjgf/SeEk9/waypDalu6gJGpUu9rGFcMJOs9S e87cgP8wuoDnpYrNgVTpj6OoD3cGk0a/aQOdSYW3oBGIQklDtrtfaFVjiqtMUHPp 5/O2m4LwcVhqeGLDJ0dKpniAtjrlAsGKsMh0jg8TA9RhTID37shv+bquBoo7HMqV /WOLSAW5VY6GCF6GSScv5Lrauy9OgPUb7BET4C2OXmCu1VU8IXiy+mwE7K4WfE57 IwcWs/J2TDPeAb68h8jzzK2/3OWvZeM3mHe+TkdqqgMyMGw2IjDwlnPasyvUNPaL ChfNE6OuWKaUIjKM4ImfNxWT0d4SJJtFKNj93E7LSMrJP4bJV46KAg== =UXAj -----END PGP SIGNATURE----- --==_Exmh_1498188418_9806P-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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