From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752531AbeDXRhr (ORCPT ); Tue, 24 Apr 2018 13:37:47 -0400 Received: from mx3.molgen.mpg.de ([141.14.17.11]:59377 "EHLO mx1.molgen.mpg.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752198AbeDXRho (ORCPT ); Tue, 24 Apr 2018 13:37:44 -0400 Subject: Re: Regression 4.17-rc1: SSD doesn properly resume causing system hang (NULL pointer dereference) To: Bart Van Assche , axboe@kernel.dk Cc: martin.petersen@oracle.com, jejb@linux.vnet.ibm.com, regressions@leemhuis.info, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org References: <59ca6556-11a6-4f77-76e7-d51c7175eb32@molgen.mpg.de> <67ffdf0050a04bf3615c3d8a3a90b0c9c2aeb1ad.camel@wdc.com> <2cc5f0fb-4caa-9c28-7daa-68993d5cb41a@molgen.mpg.de> <14ff1ed06e36a372680872c227b5abe389c753da.camel@wdc.com> From: Paul Menzel Message-ID: Date: Tue, 24 Apr 2018 19:37:42 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <14ff1ed06e36a372680872c227b5abe389c753da.camel@wdc.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms070408080600090307060200" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a cryptographically signed message in MIME format. --------------ms070408080600090307060200 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable Dear Bart, On 04/24/18 19:31, Bart Van Assche wrote: > On Tue, 2018-04-24 at 19:10 +0200, Paul Menzel wrote: >> Please find the configuration file attached. The log only has >> `initcall_debug no_console_suspend` added. >=20 > What I was looking for in the .config is the following: > CONFIG_SCSI_MQ_DEFAULT=3Dy >=20 > Can you also provide the disassembly output for blk_set_runtime_active,= > e.g. by loading vmlinux into gdb and by running the command "disas > blk_set_runtime_active"? Here it is, pasted as citation, as otherwise Thunderbird would wrap the=20 line. > (gdb) disas blk_set_runtime_active > Dump of assembler code for function blk_set_runtime_active: > 0xc1518610 <+0>: call 0xc106ac9c <__fentry__> > 0xc1518615 <+5>: push %ebp > 0xc1518616 <+6>: mov %esp,%ebp > 0xc1518618 <+8>: sub $0x14,%esp > 0xc151861b <+11>: mov %ebx,-0xc(%ebp) > 0xc151861e <+14>: mov %eax,%ebx > 0xc1518620 <+16>: mov %gs:0x14,%eax > 0xc1518626 <+22>: mov %eax,-0x10(%ebp) > 0xc1518629 <+25>: xor %eax,%eax > 0xc151862b <+27>: test %ebx,%ebx > 0xc151862d <+29>: mov %esi,-0x8(%ebp) > 0xc1518630 <+32>: mov %edi,-0x4(%ebp) > 0xc1518633 <+35>: je 0xc15186b3 > 0xc1518635 <+37>: mov 0xfc(%ebx),%eax > 0xc151863b <+43>: call 0xc1a4b920 <_raw_spin_lock_irq> > 0xc1518640 <+48>: mov 0x150(%ebx),%esi > 0xc1518646 <+54>: xor %eax,%eax > 0xc1518648 <+56>: mov 0xc1ca7d20,%edi > 0xc151864e <+62>: mov %eax,0x154(%ebx) > 0xc1518654 <+68>: cmp $0xffffff0c,%esi > 0xc151865a <+74>: mov %edi,-0x14(%ebp) > 0xc151865d <+77>: je 0xc15186a5 > 0xc151865f <+79>: mov %edi,0xf4(%esi) > 0xc1518665 <+85>: mov $0x9,%edx > 0xc151866a <+90>: mov 0x150(%ebx),%eax > 0xc1518670 <+96>: call 0xc175ab80 <__pm_runtime_suspend> > 0xc1518675 <+101>: mov 0xfc(%ebx),%eax > 0xc151867b <+107>: call *0xc1ce2918 > 0xc1518681 <+113>: call *0xc1ce2888 > 0xc1518687 <+119>: mov -0x10(%ebp),%eax > 0xc151868a <+122>: xor %gs:0x14,%eax > 0xc1518691 <+129>: jne 0xc15186a0 > 0xc1518693 <+131>: mov -0xc(%ebp),%ebx > 0xc1518696 <+134>: mov -0x8(%ebp),%esi > 0xc1518699 <+137>: mov -0x4(%ebp),%edi > 0xc151869c <+140>: mov %ebp,%esp > 0xc151869e <+142>: pop %ebp > 0xc151869f <+143>: ret =20 > 0xc15186a0 <+144>: call 0xc108c6c0 <__stack_chk_fail> > 0xc15186a5 <+149>: xor %edx,%edx > 0xc15186a7 <+151>: mov $0xc1ee14b4,%eax > 0xc15186ac <+156>: call 0xc15bb7f0 <__ubsan_handle_type_mismatch> > 0xc15186b1 <+161>: jmp 0xc151865f > 0xc15186b3 <+163>: xor %edx,%edx > 0xc15186b5 <+165>: mov $0xc1ee14cc,%eax > 0xc15186ba <+170>: call 0xc15bb7f0 <__ubsan_handle_type_mismatch> > 0xc15186bf <+175>: jmp 0xc1518635 > End of assembler dump. Kind regards, Paul PS: By the way, your mailer stripped the full names of my first message, = and replace the =E2=80=9Cnames=E2=80=9D with the email address. --------------ms070408080600090307060200 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC EFowggUSMIID+qADAgECAgkA4wvV+K8l2YEwDQYJKoZIhvcNAQELBQAwgYIxCzAJBgNVBAYT AkRFMSswKQYDVQQKDCJULVN5c3RlbXMgRW50ZXJwcmlzZSBTZXJ2aWNlcyBHbWJIMR8wHQYD VQQLDBZULVN5c3RlbXMgVHJ1c3QgQ2VudGVyMSUwIwYDVQQDDBxULVRlbGVTZWMgR2xvYmFs Um9vdCBDbGFzcyAyMB4XDTE2MDIyMjEzMzgyMloXDTMxMDIyMjIzNTk1OVowgZUxCzAJBgNV BAYTAkRFMUUwQwYDVQQKEzxWZXJlaW4genVyIEZvZXJkZXJ1bmcgZWluZXMgRGV1dHNjaGVu IEZvcnNjaHVuZ3NuZXR6ZXMgZS4gVi4xEDAOBgNVBAsTB0RGTi1QS0kxLTArBgNVBAMTJERG Ti1WZXJlaW4gQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkgMjCCASIwDQYJKoZIhvcNAQEBBQAD 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