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 219BBC433EF for ; Thu, 7 Apr 2022 04:46:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240842AbiDGEr5 (ORCPT ); Thu, 7 Apr 2022 00:47:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34470 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240803AbiDGErd (ORCPT ); Thu, 7 Apr 2022 00:47:33 -0400 Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79DE4B28; Wed, 6 Apr 2022 21:45:31 -0700 (PDT) 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 4KYpj13M0Wz4x5W; Thu, 7 Apr 2022 14:45:25 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=201702; t=1649306726; bh=nboON7t6FGjROyfVQUKf5whIOw0I2W4Po+mSYogO1MA=; h=Date:From:To:Cc:Subject:From; b=qfYeiIxBJiRBD8xOndebn6NfWnTQ0yho8SJZeoWV9bdNIMSGx8lAnMe1Lu7sqj83B 432V0I7zcZQm2GkIgp5UOycXsp48K6bZMWDYRF4AbQnTna6EaATD8ZEeIq6HgWemQc pESq9Z6kSS2nMJUtXEaUM00Jju3nXf1rKhbzgoAj7zy40BdyztW8n/Om0mndbYdR9f BqPFhBFdUZBPcrdOvMnnfGv2W23QN/7sD6DcIC0JMy5G3+/0MxmVkF7BFNlQao1nbs 57zj7nS+UcsF1NTNLvmh9GBN2bUWE+PEPqE4I3WisxOSbj371rU9ECzBT4RRFupObu vfHLZdnBXHtuQ== Date: Thu, 7 Apr 2022 14:45:24 +1000 From: Stephen Rothwell To: Chuck Lever Cc: Linux Kernel Mailing List , Linux Next Mailing List , Steven Rostedt Subject: linux-next: runtime warning after merge of the cel-fixes tree Message-ID: <20220407144524.2a592ed6@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/mmSWu2=IIrDB.qOXQSmL4o4"; protocol="application/pgp-signature"; micalg=pgp-sha256 Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org --Sig_/mmSWu2=IIrDB.qOXQSmL4o4 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, After merging the cel-fixes tree, today's linux-next build (powerpc pseries_le_defconfig) produced this warning: ftrace: allocating 33539 entries in 13 pages ftrace: allocated 13 pages with 3 groups trace event string verifier disabled rcu: Hierarchical RCU implementation. rcu: RCU event tracing is enabled. rcu: RCU restricting CPUs from NR_CPUS=3D2048 to nr_cpu_ids=3D1. Rude variant of Tasks RCU enabled. Tracing variant of Tasks RCU enabled. rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. rcu: Adjusting geometry for rcu_fanout_leaf=3D16, nr_cpu_ids=3D1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at kernel/trace/trace_events.c:431 trace_event_raw_i= nit+0x1a4/0x7d0 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.18.0-rc1 #2 NIP: c0000000002c0924 LR: c0000000002c0ce8 CTR: c0000000002c0990 REGS: c000000002787a00 TRAP: 0700 Not tainted (5.18.0-rc1) MSR: 8000000002021033 CR: 44000282 XER: 20000000 CFAR: c0000000002c0b34 IRQMASK: 1=20 GPR00: c0000000002c0cd0 c000000002787ca0 c00000000278ae00 0000000000000000= =20 GPR04: 000000000000002c 0000000000000005 0000000000000057 c0000000002c08ac= =20 GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000= =20 GPR12: c0000000002c0780 c000000002950000 0000000000000003 0000000000000000= =20 GPR16: 0000000002bf00d0 000000007e68ebc8 c000000000fb0758 000508b58019388f= =20 GPR20: 0000000000000000 0000000000000001 c000000000fb0748 0000000000000003= =20 GPR24: 0000000000000000 0000000000000000 0000000000000001 0000000000000000= =20 GPR28: c0000000026fcde0 c0000000026f60e0 000000000000005f c0000000026f613f= =20 NIP [c0000000002c0924] trace_event_raw_init+0x1a4/0x7d0 LR [c0000000002c0ce8] trace_event_raw_init+0x568/0x7d0 Call Trace: [c000000002787ca0] [c0000000002c0cd0] trace_event_raw_init+0x550/0x7d0 (unr= eliable) [c000000002787da0] [c0000000002bd908] event_init+0x78/0x100 [c000000002787e10] [c0000000020346ac] trace_event_init+0xc8/0x334 [c000000002787eb0] [c000000002033d20] trace_init+0x18/0x2c [c000000002787ed0] [c000000002004318] start_kernel+0x598/0x8d8 [c000000002787f90] [c00000000000d19c] start_here_common+0x1c/0x600 Instruction dump: 41800348 60000000 60420000 3bde0001 7fdf07b4 7ffdfa14 891f0000 710a00ff=20 4082ff5c 2c3a0000 38600000 41820230 <0fe00000> f9c10070 f9e10078 fa010080=20 ---[ end trace 0000000000000000 ]--- event svc_defer_recv has unsafe dereference of argument 1 print_fmt: "addr=3D%pISpc dr=3D%p xid=3D0x%08x", (struct sockaddr *)__get_d= ynamic_array(addr), REC->dr, REC->xid event svc_defer_queue has unsafe dereference of argument 1 print_fmt: "addr=3D%pISpc dr=3D%p xid=3D0x%08x", (struct sockaddr *)__get_d= ynamic_array(addr), REC->dr, REC->xid event svc_defer_drop has unsafe dereference of argument 1 print_fmt: "addr=3D%pISpc dr=3D%p xid=3D0x%08x", (struct sockaddr *)__get_d= ynamic_array(addr), REC->dr, REC->xid NR_IRQS: 512, nr_irqs: 512, preallocated irqs: 16 rcu: srcu_init: Setting srcu_struct sizes based on contention. Introduced by commit e2e917f8677d ("SUNRPC: Fix the svc_deferred_event trace class") At least reverting that commit makes the warning go away. I have left that commit reverted for today. --=20 Cheers, Stephen Rothwell --Sig_/mmSWu2=IIrDB.qOXQSmL4o4 Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmJObGQACgkQAVBC80lX 0GyE2wf/aGM5jaE1UYPkt402jf3FnD++s6vDpNtL3TdInMu1BvQomoHhWEXOeLZl 3YLmQqZ5KkGEwIxW4XzNdZOehfvNcwZ1Vy0+jlntByXxm5sJ6bbK1UTX1XHtEFKg V2crd4KrFvbtWR362m3DAjU8phBm8EnvKxEBRpIuSfG/MbuhM6KAnEOX25Z4qklq VIjLe/byUihoGf7v++eTYWmn63Mi6bpxHz7t+EB57Nb0gwoX0u2jTFaxnMfCoyqz TDeqVtJ8NTBxeq0LG7yOLzyRlqxeGEIeDJwa3uh+hVBnag8YqKfnqtNF4NCmSxS2 GvThRU9lb+G3a9y4a1+MSry8WjfqVQ== =skcD -----END PGP SIGNATURE----- --Sig_/mmSWu2=IIrDB.qOXQSmL4o4--