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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E976C433F5 for ; Tue, 30 Nov 2021 07:46:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234474AbhK3Htq (ORCPT ); Tue, 30 Nov 2021 02:49:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234471AbhK3Htp (ORCPT ); Tue, 30 Nov 2021 02:49:45 -0500 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee2:21ea]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3B05C061574; Mon, 29 Nov 2021 23:46:26 -0800 (PST) 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 4J3Dmw6pcSz4xR7; Tue, 30 Nov 2021 18:46:24 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=201702; t=1638258385; bh=IRJ88mg4Dj0bG6EbQHSHF+i5Z5NAYf6YkaS9fWv0Txg=; h=Date:From:To:Cc:Subject:From; b=m2EbPr33VrCs6TfSz6ftDcLzMhrsdxJRhMUMrK5B8AZyHLC26LFuU+doOI/j5kXWV 7MpyuhpqHlS0LUTTjvWg5Yx9oQ8In8SVkc1p8iyb7pBy94sijteLzFaHgy1RoinEHf FAKIzRzJC0y6mzJzSZa/I/pf7ONbjC5K061Er1xHTGQggjtAn3AcwshjpD5OgWsRWN 5NU7/Q2mFnANArra2UhV0lrPlOZnkjlYfK1EcQNmWqlCZMjAciLVkpahpmKtH7p0AV oaVly3oOMlnW+piB3n6Rr78keS1fkBzoArsFrlGWbFNS9Zeff+4hy/Z8WgbDfqUDV3 mUfIg5LbukFRA== Date: Tue, 30 Nov 2021 18:46:22 +1100 From: Stephen Rothwell To: Andrew Morton Cc: Luis Chamberlain , Xiaoming Ni , Linux Kernel Mailing List , Linux Next Mailing List Subject: linux-next: boot failure after merge of the akpm tree Message-ID: <20211130184622.71be17e0@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/sz3UtG29bHJ50Xq9dByJzGA"; protocol="application/pgp-signature"; micalg=pgp-sha256 Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org --Sig_/sz3UtG29bHJ50Xq9dByJzGA Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, After merging the akpm tree, today's linux-next boot test (powerpc pseries_le_defconfig) failed like this: [ 0.025828][ T0] pid_max: default: 32768 minimum: 301 [ 0.028445][ T0] Mount-cache hash table entries: 8192 (order: 0, 6553= 6 bytes, linear) [ 0.028636][ T0] Mountpoint-cache hash table entries: 8192 (order: 0,= 65536 bytes, linear) [ 0.055344][ T0] BUG: Unable to handle kernel data access on write at= 0x2000000b7 [ 0.056649][ T0] Faulting instruction address: 0xc00000000057435c [ 0.057458][ T0] Oops: Kernel access of bad area, sig: 11 [#1] [ 0.057734][ T0] LE PAGE_SIZE=3D64K MMU=3DHash SMP NR_CPUS=3D2048 NUM= A pSeries [ 0.058250][ T0] Modules linked in: [ 0.058816][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.16.0-rc3= #2 [ 0.059410][ T0] NIP: c00000000057435c LR: c000000000577f54 CTR: 000= 0000000000003 [ 0.059608][ T0] REGS: c000000002787a80 TRAP: 0380 Not tainted (5.= 16.0-rc3) [ 0.059999][ T0] MSR: 8000000002009033 C= R: 44000288 XER: 20000000 [ 0.060654][ T0] CFAR: c000000000574464 IRQMASK: 0=20 [ 0.060654][ T0] GPR00: c000000000577f54 c000000002787d20 c0000000027= 88500 c00000000252d5e8=20 [ 0.060654][ T0] GPR04: c000000000e42500 c00000000252d5e8 00000000000= 00000 c0000000073a02c9=20 [ 0.060654][ T0] GPR08: c000000000e42380 c000000000f89d48 c0000000027= 4f700 ffffffffffffffff=20 [ 0.060654][ T0] GPR12: 0000000000000000 c000000002970000 00000000000= 00000 0000000000000000=20 [ 0.060654][ T0] GPR16: 0000000002bf00d0 000000000135bfd8 00000000000= 00000 0000000000000000=20 [ 0.060654][ T0] GPR20: c00000000252d6e8 c00000000252d740 00000000000= 00006 0000000000000000=20 [ 0.060654][ T0] GPR24: 0000000000000000 0000000000000002 c0000000026= 62eb8 c00000000252d5e8=20 [ 0.060654][ T0] GPR28: 00000002000000b7 c000000001004108 00000000000= 00000 c00000000252d5c0=20 [ 0.062938][ T0] NIP [c00000000057435c] count_subheaders.part.0+0x9c/= 0x2b0 [ 0.064395][ T0] LR [c000000000577f54] __register_sysctl_paths+0x64/0= x320 [ 0.065201][ T0] Call Trace: [ 0.065521][ T0] [c000000002787dc0] [c000000000577f54] __register_sys= ctl_paths+0x64/0x320 [ 0.065960][ T0] [c000000002787e40] [c0000000005782a4] __register_sys= ctl_base+0x34/0x50 [ 0.066570][ T0] [c000000002787e60] [c0000000020259bc] sysctl_init_ba= ses+0x34/0x74 [ 0.066960][ T0] [c000000002787e90] [c000000002041744] proc_sys_init+= 0x54/0x68 [ 0.067306][ T0] [c000000002787eb0] [c0000000020410dc] proc_root_init= +0xb8/0xdc [ 0.067763][ T0] [c000000002787ed0] [c0000000020044fc] start_kernel+0= x838/0x8cc [ 0.068171][ T0] [c000000002787f90] [c00000000000d39c] start_here_com= mon+0x1c/0x600 [ 0.068782][ T0] Instruction dump: [ 0.069295][ T0] f821ff61 eab40018 2c350000 418201c8 e9350000 2c29000= 0 4182020c 3b000000=20 [ 0.069694][ T0] 3a600000 eb950018 2c3c0000 41820198 2c290= 000 418201dc 3b200000=20 [ 0.071747][ T0] ---[ end trace df5d37c8b563422a ]--- [ 0.071967][ T0]=20 [ 1.073058][ T0] Kernel panic - not syncing: Attempted to kill the id= le task! Bisected to commit f00ff38c1dfa ("sysctl: add and use base directory declarer and registrati= on helper") I have reverted that complete 6 patch series for today. --=20 Cheers, Stephen Rothwell --Sig_/sz3UtG29bHJ50Xq9dByJzGA Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmGl1s4ACgkQAVBC80lX 0GyV3gf/ZFtWmMGC9oDU/MB5bKEkOtAPvAwzthwNHmq4PXTrofnI8Xk80H7jr1yC uDA7E/rSBTx9ssWwOqgaG1y9EpjYnKGp9RUsCJhpwdX9HP4elgKN9bkPprf1OvW+ QPZou749BCDMh3AIhYDivCenIZGd2BcGWDTxwhqY/4yf+uTP1T0Ji/TPCydsR/1M TDfG9jBM5oBmXguRSLB7iijs0ASl3gpfK7lA/nY2jhwC5zNEYUproKJRGQZBnnDR PZhJYLUVR9FnFRUAmVuKPCxhcDfH9Ek/pdmzlHc1dOR4bd1pSK9AdxJDMzQ3Ng3C ONBNHLV3eNL7Y6qboCf0IdfWeJ6DUg== =VRm7 -----END PGP SIGNATURE----- --Sig_/sz3UtG29bHJ50Xq9dByJzGA--