From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B4CEC433ED for ; Wed, 12 May 2021 07:54:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3C84361370 for ; Wed, 12 May 2021 07:54:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230135AbhELHzL (ORCPT ); Wed, 12 May 2021 03:55:11 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:52527 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230188AbhELHzL (ORCPT ); Wed, 12 May 2021 03:55:11 -0400 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4Fg6Vv57n2z9sWT; Wed, 12 May 2021 17:53:59 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1620806041; bh=gap6Ktp/fryKPCrC5ubzGABUWjQdz+4XYUL2aZZGf0Y=; h=Date:From:To:Cc:Subject:From; b=r4PoLPaZkfkfaWIPIOdDH3oXzAovSwwTJ0yZkRfWaUOrcJUO9JdXxUjKT5+8EaKtV sAYMcSgg8HifTT93DNoUcYZI97/LlMWPWXzkDMhKoSKrWLHPirKue0EQjqwaLkKZhD BWLUvewZ8tVuiILbAy6t7QAwDeAO3Grv9Ka94u6NQ28REdv/icbHmQgWOfQ2VyaAhZ /E+gWkO2UNFaWjK3WTSxGWP+aupU1vg6TD8DvE7opJCxQPITLLtE5cNB/JiHIpbW41 dzBlqJHZSTFqs+ph11WWgudL0H9z7nyb7hh2dI5aUt7X+1tjGFfxWDP3EVfsGjTQNy HtHGAwfcMhAFA== Date: Wed, 12 May 2021 17:53:59 +1000 From: Stephen Rothwell To: Andrew Morton Cc: "Uladzislau Rezki (Sony)" , Linux Kernel Mailing List , Linux Next Mailing List , Hillf Danton , Matthew Wilcox , Mel Gorman , Michal Hocko , Nicholas Piggin , Oleksiy Avramchenko , Steven Rostedt Subject: linux-next: boot failure after merge of the akpm-current tree Message-ID: <20210512175359.17793d34@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/XB2BZrOK3+E6mDuUMtLchgX"; protocol="application/pgp-signature"; micalg=pgp-sha256 Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org --Sig_/XB2BZrOK3+E6mDuUMtLchgX Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, After merging the akpm-current tree, today's linux-next boot tests (powerpc ppc_le_defconfig) failed like this: [ 0.086520][ T1] rcu: Hierarchical SRCU implementation. [ 0.097819][ T1] BUG: Unable to handle kernel data access on read at = 0x200000c0a [ 0.098533][ T1] Faulting instruction address: 0xc0000000003f6fa0 [ 0.099044][ T1] Oops: Kernel access of bad area, sig: 11 [#1] [ 0.099182][ T1] LE PAGE_SIZE=3D64K MMU=3DHash SMP NR_CPUS=3D2048 NUM= A pSeries [ 0.099506][ T1] Modules linked in: [ 0.099896][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-rc1= -00142-g6053672bb612 #12 [ 0.100254][ T1] NIP: c0000000003f6fa0 LR: c0000000003f6f68 CTR: 000= 0000000000000 [ 0.100342][ T1] REGS: c0000000063a3480 TRAP: 0380 Not tainted (5.= 13.0-rc1-00142-g6053672bb612) [ 0.100550][ T1] MSR: 8000000002009033 C= R: 24402840 XER: 00000000 [ 0.100900][ T1] CFAR: c0000000003f6f7c IRQMASK: 0=20 [ 0.100900][ T1] GPR00: c0000000003f6f68 c0000000063a3720 c0000000014= 6b100 0000000000000000=20 [ 0.100900][ T1] GPR04: 0000000000000000 0000000000000000 00000000000= 00000 0000000000000002=20 [ 0.100900][ T1] GPR08: c0000000015219e8 0000000000000000 00000002000= 00c02 c000000006030010=20 [ 0.100900][ T1] GPR12: 0000000000008000 c000000001640000 00000000000= 00001 c000000000262f84=20 [ 0.100900][ T1] GPR16: c00a000000000000 c008000000000000 00000000000= 00dc0 0000000000000008=20 [ 0.100900][ T1] GPR20: 0000000000000522 0000000000010000 00000000000= 00cc0 c008000000000000=20 [ 0.100900][ T1] GPR24: 0000000000000001 0000000000000000 00000000000= 02cc2 0000000000000000=20 [ 0.100900][ T1] GPR28: 0000000000000000 0000000000000000 00000002000= 00c02 0000000000002cc2=20 [ 0.101927][ T1] NIP [c0000000003f6fa0] __alloc_pages+0x140/0x3f0 [ 0.102733][ T1] LR [c0000000003f6f68] __alloc_pages+0x108/0x3f0 [ 0.103032][ T1] Call Trace: [ 0.103165][ T1] [c0000000063a3720] [0000000000000900] 0x900 (unrelia= ble) [ 0.103616][ T1] [c0000000063a37b0] [c0000000003f7810] __alloc_pages_= bulk+0x5c0/0x840 [ 0.103787][ T1] [c0000000063a3890] [c0000000003ecf74] __vmalloc_node= _range+0x4c4/0x600 [ 0.103871][ T1] [c0000000063a39b0] [c00000000004f598] module_alloc+0= x58/0x70 [ 0.103962][ T1] [c0000000063a3a20] [c000000000262f84] alloc_insn_pag= e+0x24/0x40 [ 0.104046][ T1] [c0000000063a3a40] [c00000000026629c] __get_insn_slo= t+0x1dc/0x280 [ 0.104143][ T1] [c0000000063a3a80] [c00000000005770c] arch_prepare_k= probe+0x15c/0x1f0 [ 0.104290][ T1] [c0000000063a3b00] [c000000000267880] register_kprob= e+0x6d0/0x850 [ 0.104392][ T1] [c0000000063a3b60] [c00000000108fe2c] arch_init_kpro= bes+0x28/0x3c [ 0.104524][ T1] [c0000000063a3b80] [c0000000010addb0] init_kprobes+0= x120/0x174 [ 0.104629][ T1] [c0000000063a3bf0] [c000000000012190] do_one_initcal= l+0x60/0x2c0 [ 0.104722][ T1] [c0000000063a3cc0] [c0000000010845a0] kernel_init_fr= eeable+0x1bc/0x3a0 [ 0.104826][ T1] [c0000000063a3da0] [c000000000012764] kernel_init+0x= 2c/0x168 [ 0.104911][ T1] [c0000000063a3e10] [c00000000000d5ec] ret_from_kerne= l_thread+0x5c/0x70 [ 0.105178][ T1] Instruction dump: [ 0.105516][ T1] 40920018 57e9efbe 2c090001 4082000c 63050080 78b8002= 0 e8a10028 57e9a7fe=20 [ 0.105759][ T1] 7fcaf378 99210040 2c250000 408201f4 <813e0008> 7c09c= 840 418101e8 57e50528=20 [ 0.107188][ T1] ---[ end trace 9bd7c2fac4d061e2 ]--- [ 0.107319][ T1]=20 [ 1.108818][ T1] Kernel panic - not syncing: Attempted to kill init! = exitcode=3D0x0000000b I bisected it to commit 6bfa49390ed1 ("mm/vmalloc: switch to bulk allocator in __vmalloc_area_nod= e()") and have reverted that commit (and the following one) for today. --=20 Cheers, Stephen Rothwell --Sig_/XB2BZrOK3+E6mDuUMtLchgX Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmCbiZcACgkQAVBC80lX 0GwAbgf/YK4gJBMQdi4BldxRhUvrhDaTv/ZoxEX8MAdHCNZdb+brLxbcZiUlrvBP B3p4yZ57CSY/XnYQGybQjAZ7DYfX0P/8OxKUzyNqZ4H89lRUGgpOXms/BcZ8H65y Mme4V/0M4rCYWIqrJJrjCjOMAWFIyDyv+yks6zNgzfF6+jneqtEfVv4ADGSF4wkP 9RPD5Bxrk9VsRJp+It2FYSD9A8GLQMANTsjIkaRm+kQT+WmfL3dgNiaLdn2pcgqx SLRfLd9i98rAH0HPox8Kh8pTf8s8/KE+KaEKOc2VARbjo6CLrD4dNMksFlAV0wB6 W7wLbWB0vbRb9RTApj3tUWGNkdjmCA== =mfbP -----END PGP SIGNATURE----- --Sig_/XB2BZrOK3+E6mDuUMtLchgX--