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[85.214.156.166]) by gmr-mx.google.com with ESMTPS id f16si36334lfh.3.2019.04.12.22.51.27 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 12 Apr 2019 22:51:27 -0700 (PDT) Received-SPF: pass (google.com: domain of mosipov@ilbers.de designates 85.214.156.166 as permitted sender) client-ip=85.214.156.166; Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of mosipov@ilbers.de designates 85.214.156.166 as permitted sender) smtp.mailfrom=mosipov@ilbers.de Received: from [192.168.1.31] (adsl-ull-73-77.40-151.wind.it [151.40.77.73] (may be forged)) (authenticated bits=0) by shymkent.ilbers.de (8.15.2/8.15.2/Debian-8) with ESMTPSA id x3D5pLT3019116 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 13 Apr 2019 07:51:23 +0200 Subject: Re: [PATCH] qemui386-buster: Switch to linux-image intended for older PCs To: Henning Schild Cc: isar-users@googlegroups.com References: <20190401145612.31564-1-mosipov@ilbers.de> <20190412191409.67e31bf9@md1za8fc.ad001.siemens.net> From: "Maxim Yu. Osipov" Organization: ilbers GmbH Message-ID: Date: Sat, 13 Apr 2019 07:51:16 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20190412191409.67e31bf9@md1za8fc.ad001.siemens.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on shymkent.ilbers.de X-TUID: xGWYTsCtCCyQ On 4/12/19 7:14 PM, Henning Schild wrote: > Am Mon, 1 Apr 2019 16:56:12 +0200 > schrieb "Maxim Yu. Osipov" : > >> linux-image with suffix 686-pae frequently experiences >> problems during boot: >> >> [ 30.458173] ------------[ cut here ]------------ >> [ 30.458649] kernel BUG at arch/x86/kernel/alternative.c:726! >> [ 30.459483] invalid opcode: 0000 [#1] SMP PTI >> [ 30.459960] CPU: 0 PID: 176 Comm: systemd-udevd Tainted: >> G OE 4.19.0-4-686-pae #1 Debian 4.19.28-2 >> [ 30.460749] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), >> BIOS 1.10.2-1 04/01/2014 [ 30.461571] EIP: text_poke+0x1bc/0x250 >> [ 30.461932] Code: 0f b6 07 38 01 75 23 8b 55 e8 8d 47 01 8d 34 1f >> 83 c2 01 8d 76 00 39 f0 74 14 0f b6 18 0f b6 0a 83 c0 01 83 c2 01 38 >> cb 74 ec <0f> 0b 66 90 8b 45 dc 50 9d 8d 74 26 00 8d 65 f4 89 f8 5b >> 5e 5f 5d [ 30.463339] EAX: 000000f0 EBX: 00000001 ECX: f642be1b >> EDX: ffd30000 [ 30.463828] ESI: d0060b90 EDI: f7c00350 EBP: >> f642be00 ESP: f642bddc [ 30.464328] DS: 007b ES: 007b FS: 00d8 GS: >> 00e0 SS: 0068 EFLAGS: 00200007 [ 30.464864] CR0: 80050033 CR2: >> f9a00000 CR3: 3642c000 CR4: 000006b0 [ 30.465453] Call Trace: >> [ 30.466264] alternatives_smp_module_add+0x141/0x150 >> [ 30.466768] module_finalize+0x137/0x160 [ 30.467134] >> load_module+0x1a47/0x1e90 [ 30.467472] ? >> kernel_read_file+0x1e7/0x220 [ 30.467844] >> sys_finit_module+0x89/0xe0 [ 30.468217] >> do_fast_syscall_32+0x81/0x184 [ 30.468573] >> entry_SYSENTER_32+0x6b/0xbe [ 30.478343] EIP: 0xb7ef0d71 >> [ 30.487659] Code: f6 ff ff 55 89 e5 8b 55 08 8b 80 5c cd ff ff 85 >> d2 74 02 89 02 5d c3 8b 04 24 c3 8b 1c 24 c3 90 90 51 52 55 89 e5 0f >> 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 >> 90 8d 76 [ 30.507802] EAX: ffffffda EBX: 0000000f ECX: b7d00bdd >> EDX: 00000000 [ 30.517900] ESI: 00fba390 EDI: 00fba140 EBP: >> 00000000 ESP: bfbf781c [ 30.527949] DS: 007b ES: 007b FS: 0000 GS: >> 0033 SS: 007b EFLAGS: 00200292 [ 30.538212] Modules linked in: >> bochs_drm ttm drm_kms_helper evdev drm pcspkr serio_raw sg parport_pc >> parport qemu_fw_cfg button example_module(OE) ip_tables x_tables >> autofs4 ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb >> crypto_simd cryptd aes_i586 sr_mod cdrom sd_mod ata_generic ata_piix >> libata psmouse scsi_mod e1000 i2c_piix4 floppy [ 30.571056] >> ---[ end trace c162d77644e01483 ]--- > > Is that reproducible? yes, quite regularly (not i. Which qemu version are you running that on? QEMU emulator version 2.8.1(Debian 1:2.8+dfsg-6+deb9u4) This > might be something to forward to qemu/kernel (more likely qemu) instead > of just ignoring that finding. Feel free to report that. Maxim. > PAE together with spectre/meltdown mitigations smells ... > > Henning > >> Switch to other linux-image flavor (intended for older PCs), >> which behaves stable. >> >> Signed-off-by: Maxim Yu. Osipov >> --- >> meta-isar/conf/multiconfig/qemui386-buster.conf | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/meta-isar/conf/multiconfig/qemui386-buster.conf >> b/meta-isar/conf/multiconfig/qemui386-buster.conf index >> 4216d85..6b5a18e 100644 --- >> a/meta-isar/conf/multiconfig/qemui386-buster.conf +++ >> b/meta-isar/conf/multiconfig/qemui386-buster.conf @@ -5,7 +5,7 @@ >> MACHINE ?= "qemui386" DISTRO ?= "debian-buster" >> DISTRO_ARCH ?= "i386" >> >> -KERNEL_NAME ?= "686-pae" >> +KERNEL_NAME ?= "686" >> >> IMAGE_TYPE ?= "wic-img" >> WKS_FILE ?= "directdisk-isar" > -- Maxim Osipov ilbers GmbH Maria-Merian-Str. 8 85521 Ottobrunn Germany +49 (151) 6517 6917 mosipov@ilbers.de http://ilbers.de/ Commercial register Munich, HRB 214197 General Manager: Baurzhan Ismagulov