From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Pawe=c5=82_Staszewski?= Subject: Re: Latest net-next from GIT panic Date: Wed, 20 Sep 2017 15:09:33 +0200 Message-ID: <245b749e-cf54-b6ef-c9e8-20fb3697892f@itcare.pl> References: <4745525f-18e4-7f69-fe21-8e507e407b33@itcare.pl> <2aeb7871-fe89-c714-3355-c5f48651e70c@itcare.pl> <15d293fa-0f53-bdca-6358-6a58d1da77af@itcare.pl> <65e2195b-3bd1-c0b4-b474-e07dd08f71b9@itcare.pl> <1505877870.29839.82.camel@edumazet-glaptop3.roam.corp.google.com> <07bde5d4-fab6-3ef9-f586-403dadbb0a2a@itcare.pl> <8f0b0143-657e-d574-c442-24d3d017bc87@itcare.pl> <54d058d4-b9d1-54cb-f064-45cec430fe5d@itcare.pl> <6c073f86-ab71-0a8f-7b9a-91d5ae5da214@itcare.pl> <7fee43ee-75b5-c2f5-cf8d-684ceefcd2d1@itcare.pl> <3324f95f-7686-81e0-a973-1a9220c918fe@itcare.pl> <1d2a316a-fc71-dae5-cd10-11defc7d2aeb@itcare.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Cc: Linux Kernel Network Developers To: Eric Dumazet Return-path: Received: from smtp16.iq.pl ([86.111.242.222]:40799 "EHLO smtp16.iq.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750997AbdITNLn (ORCPT ); Wed, 20 Sep 2017 09:11:43 -0400 In-Reply-To: <1d2a316a-fc71-dae5-cd10-11defc7d2aeb@itcare.pl> Content-Language: pl Sender: netdev-owner@vger.kernel.org List-ID: So far path for bisect was: git bisect start # bad: [ac7b75966c9c86426b55fe1c50ae148aa4571075] Merge tag 'pinctrl-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl git bisect bad ac7b75966c9c86426b55fe1c50ae148aa4571075 # good: [e24dd9ee5399747b71c1d982a484fc7601795f31] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security git bisect good e24dd9ee5399747b71c1d982a484fc7601795f31 # bad: [9cc9a5cb176ccb4f2cda5ac34da5a659926f125f] datapath: Avoid using stack larger than 1024. git bisect bad 9cc9a5cb176ccb4f2cda5ac34da5a659926f125f # good: [073cf9e20c333ab29744717a23f9e43ec7512a20] Merge branch 'udp-reduce-cache-pressure' git bisect good 073cf9e20c333ab29744717a23f9e43ec7512a20 # bad: [8abd5599a520e9f188a750f1bde9dde5fb856230] Merge branch 's390-net-updates-part-2' git bisect bad 8abd5599a520e9f188a750f1bde9dde5fb856230 # good: [2fae5d0e647c6470d206e72b5fc24972bb900f70] Merge branch 'bpf-ctx-narrow' git bisect good 2fae5d0e647c6470d206e72b5fc24972bb900f70 # good: [41500c3e2a19ffcf40a7158fce1774de08e26ba2] rds: tcp: remove cp_outgoing git bisect good 41500c3e2a19ffcf40a7158fce1774de08e26ba2 # bad: [8917a777be3ba566377be05117f71b93a5fd909d] tcp: md5: add TCP_MD5SIG_EXT socket option to set a key address prefix git bisect bad 8917a777be3ba566377be05117f71b93a5fd909d # good: [4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36] net: introduce a new function dst_dev_put() git bisect good 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 # bad: [a4c2fd7f78915a0d7c5275e7612e7793157a01f2] net: remove DST_NOCACHE flag git bisect bad a4c2fd7f78915a0d7c5275e7612e7793157a01f2 # bad: [ad65a2f05695aced349e308193c6e2a6b1d87112] ipv6: call dst_hold_safe() properly git bisect bad ad65a2f05695aced349e308193c6e2a6b1d87112 No PANIC # good: [9df16efadd2a8a82731dc76ff656c771e261827f] ipv4: call dst_hold_safe() properly git bisect good 9df16efadd2a8a82731dc76ff656c771e261827f PANIC # bad: [1cfb71eeb12047bcdbd3e6730ffed66e810a0855] ipv6: take dst->__refcnt for insertion into fib6 tree git bisect bad 1cfb71eeb12047bcdbd3e6730ffed66e810a0855 PANIC # bad: [b838d5e1c5b6e57b10ec8af2268824041e3ea911] ipv4: mark DST_NOGC and remove the operation of dst_free() git bisect bad b838d5e1c5b6e57b10ec8af2268824041e3ea911 # first bad commit: [b838d5e1c5b6e57b10ec8af2268824041e3ea911] ipv4: mark DST_NOGC and remove the operation of dst_free() W dniu 2017-09-20 o 15:05, Paweł Staszewski pisze: > hmm > > But after > > b838d5e1c5b6e57b10ec8af2268824041e3ea911 is the first bad commit > commit b838d5e1c5b6e57b10ec8af2268824041e3ea911 > Author: Wei Wang > Date:   Sat Jun 17 10:42:32 2017 -0700 > >     ipv4: mark DST_NOGC and remove the operation of dst_free() > >     With the previous preparation patches, we are ready to get rid of the >     dst gc operation in ipv4 code and release dst based on refcnt only. >     So this patch adds DST_NOGC flag for all IPv4 dst and remove the > calls >     to dst_free(). >     At this point, all dst created in ipv4 code do not use the dst gc >     anymore and will be destroyed at the point when refcnt drops to 0. > >     Signed-off-by: Wei Wang >     Acked-by: Martin KaFai Lau >     Signed-off-by: David S. Miller > > :040000 040000 9b7e7fb641de6531fc7887473ca47ef7cb6a11da > 831a73b71d3df1755f3e24c0d3c86d7a93fd55e2 M      net > > > Still panic - soo will back to past 3 steps and will try to get again > bisect without panic. > > > > W dniu 2017-09-20 o 14:49, Paweł Staszewski pisze: >> And the last one >> >> git bisect good >> Bisecting: 1 revision left to test after this (roughly 1 step) >> [1cfb71eeb12047bcdbd3e6730ffed66e810a0855] ipv6: take dst->__refcnt >> for insertion into fib6 tree >> >> With this have kernel panic same as always >> >> git bisect bad >> Bisecting: 0 revisions left to test after this (roughly 0 steps) >> [b838d5e1c5b6e57b10ec8af2268824041e3ea911] ipv4: mark DST_NOGC and >> remove the operation of dst_free() >> >> >> >> W dniu 2017-09-20 o 14:23, Paweł Staszewski pisze: >>> Almost there >>> >>> Bisecting: 6 revisions left to test after this (roughly 3 steps) >>> [ad65a2f05695aced349e308193c6e2a6b1d87112] ipv6: call >>> dst_hold_safe() properly >>> >>> >>> >>> W dniu 2017-09-20 o 13:02, Paweł Staszewski pisze: >>>> Ok resumed and soo far: >>>> >>>> Panic: >>>> >>>> # bad: [9cc9a5cb176ccb4f2cda5ac34da5a659926f125f] datapath: Avoid >>>> using stack larger than 1024. >>>> git bisect bad 9cc9a5cb176ccb4f2cda5ac34da5a659926f125f >>>> >>>> No panic: >>>> >>>> # good: [073cf9e20c333ab29744717a23f9e43ec7512a20] Merge branch >>>> 'udp-reduce-cache-pressure' >>>> git bisect good 073cf9e20c333ab29744717a23f9e43ec7512a20 >>>> >>>> >>>> W dniu 2017-09-20 o 12:22, Paweł Staszewski pisze: >>>>> Soo far bisected and marked: >>>>> >>>>> git bisect start >>>>> # bad: [07dd6cc1fff160143e82cf5df78c1db0b6e03355] Linux 4.13.2 >>>>> git bisect bad 07dd6cc1fff160143e82cf5df78c1db0b6e03355 >>>>> # good: [5d7d2e03e0f01a992e3521b180c3d3e67905f269] Linux 4.12.13 >>>>> git bisect good 5d7d2e03e0f01a992e3521b180c3d3e67905f269 >>>>> # good: [6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c] Linux 4.12 >>>>> git bisect good 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c >>>>> # bad: [ac7b75966c9c86426b55fe1c50ae148aa4571075] Merge tag >>>>> 'pinctrl-v4.13-1' of >>>>> git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl >>>>> git bisect bad ac7b75966c9c86426b55fe1c50ae148aa4571075 >>>>> # good: [e24dd9ee5399747b71c1d982a484fc7601795f31] Merge branch >>>>> 'next' of >>>>> git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security >>>>> git bisect good e24dd9ee5399747b71c1d982a484fc7601795f31 >>>>> # good: [e24dd9ee5399747b71c1d982a484fc7601795f31] Merge branch >>>>> 'next' of >>>>> git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security >>>>> git bisect good e24dd9ee5399747b71c1d982a484fc7601795f31 >>>>> # good: [e24dd9ee5399747b71c1d982a484fc7601795f31] Merge branch >>>>> 'next' of >>>>> git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security >>>>> git bisect good e24dd9ee5399747b71c1d982a484fc7601795f31 >>>>> >>>>> >>>>> >>>>> W dniu 2017-09-20 o 12:21, Paweł Staszewski pisze: >>>>>> Ok kernel crashed with different panic that i didnt catch when i >>>>>> was doing bisect and now my bisection is broken :) >>>>>> >>>>>> git bisect good >>>>>> Bisecting: 1787 revisions left to test after this (roughly 11 steps) >>>>>> error: Your local changes to the following files would be >>>>>> overwritten by checkout: >>>>>>         Documentation/00-INDEX >>>>>>         Documentation/ABI/stable/sysfs-class-udc >>>>>> Documentation/ABI/testing/configfs-usb-gadget-uac1 >>>>>>         Documentation/ABI/testing/ima_policy >>>>>>         Documentation/ABI/testing/sysfs-bus-iio >>>>>> Documentation/ABI/testing/sysfs-bus-iio-meas-spec >>>>>> Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 >>>>>>         Documentation/ABI/testing/sysfs-class-net >>>>>> Documentation/ABI/testing/sysfs-class-power-twl4030 >>>>>>         Documentation/ABI/testing/sysfs-class-typec >>>>>>         Documentation/DMA-API.txt >>>>>>         Documentation/IRQ-domain.txt >>>>>>         Documentation/Makefile >>>>>>         Documentation/PCI/MSI-HOWTO.txt >>>>>>         Documentation/RCU/00-INDEX >>>>>> Documentation/RCU/Design/Requirements/Requirements.html >>>>>>         Documentation/RCU/checklist.txt >>>>>>         Documentation/admin-guide/README.rst >>>>>>         Documentation/admin-guide/devices.txt >>>>>>         Documentation/admin-guide/index.rst >>>>>>         Documentation/admin-guide/kernel-parameters.txt >>>>>>         Documentation/admin-guide/pm/cpufreq.rst >>>>>>         Documentation/admin-guide/pm/intel_pstate.rst >>>>>>         Documentation/admin-guide/ras.rst >>>>>>         Documentation/arm/Atmel/README >>>>>>         Documentation/block/biodoc.txt >>>>>>         Documentation/conf.py >>>>>>         Documentation/core-api/assoc_array.rst >>>>>>         Documentation/core-api/atomic_ops.rst >>>>>>         Documentation/core-api/index.rst >>>>>>         Documentation/crypto/asymmetric-keys.txt >>>>>>         Documentation/dev-tools/index.rst >>>>>>         Documentation/dev-tools/sparse.rst >>>>>> Documentation/devicetree/bindings/arm/amlogic.txt >>>>>> Documentation/devicetree/bindings/arm/atmel-at91.txt >>>>>>         Documentation/devicetree/bindings/arm/ccn.txt >>>>>>         Documentation/devicetree/bindings/arm/cpus.txt >>>>>>         Documentation/devicetree/bindings/arm/gemini.txt >>>>>> Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt >>>>>> Documentation/devicetree/bindings/arm/keystone/keystone.txt >>>>>> Documentation/devicetree/bindings/arm/mediatek.txt >>>>>> Documentation/devicetree/bindings/arm/rockchip.txt >>>>>> Documentation/devicetree/bindings/arm/shmobile.txt >>>>>>         Documentation/devicetree/bindings/arm/tegra.txt >>>>>> Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt >>>>>> Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt >>>>>> Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt >>>>>> Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt >>>>>> Documentation/devicetree/bindings/gpio/gpio_atmel.txt >>>>>> Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt >>>>>> Documentation/devicetree/bindings/iio/adc/renesas,gyroadc.txt >>>>>> Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt >>>>>> Documentation/devicetree/bindings/iio/imu/st_lsm6dsx.txt >>>>>> Documentation/devicetree/bindings/interrupt-controller/allwinner,sunxi-nmi.txt >>>>>> >>>>>> Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-vic.txt >>>>>> >>>>>> Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt >>>>>> >>>>>> Documentation/devicetree/bindings/leds/common.txt >>>>>>         Documentation/devicetree/bindings/mfd/hi6421.txt >>>>>> Documentation/devicetree/bindings/mfd/tps65910.txt >>>>>> Documentation/devicetree/bindings/mmc/fsl-esdhc.txt >>>>>> Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt >>>>>> Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt >>>>>> Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt >>>>>> Documentation/devicetree/bindings/mtd/atmel-nand.txt >>>>>> Documentation/devicetree/bindings/net/dsa/b53.txt >>>>>> Documentation/devicetree/bindings/net/ethernet.txt >>>>>>         Documentation/devicetree/bindings/net/macb.txt >>>>>> Documentation/devicetree/bindings/net/marvell-orion-mdio.txt >>>>>> Documentation/devicetree/bindings/net/ti,wilink-st.txt >>>>>> Documentation/devicetree/bindings/net/wireless/ti,wlcore.txt >>>>>> Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt >>>>>>         Documentation/devicetree/bindings/opp/opp.txt >>>>>> Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.txt >>>>>> Documentation/devicetree/bindings/phy/brcm-sata-phy.txt >>>>>> Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt >>>>>> Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt >>>>>> Documentation/devicetree/bindings/power/rockchip-io-domain.txt >>>>>> Documentation/devicetree/bindings/power/supply/bq27xxx.txt >>>>>> Documentation/devicetree/bindings/property-units.txt >>>>>> Documentation/devicetree/bindings/regulator/regulator.txt >>>>>>         Documentation/devicetree/bindings/serial/8 >>>>>> error: The following untracked working tree files would be >>>>>> overwritten by checkout: >>>>>>         Documentation/ABI/testing/sysfs-class-net-phydev >>>>>>         Documentation/DocBook/.gitignore >>>>>>         Documentation/DocBook/Makefile >>>>>>         Documentation/DocBook/filesystems.tmpl >>>>>>         Documentation/DocBook/kernel-hacking.tmpl >>>>>>         Documentation/DocBook/kernel-locking.tmpl >>>>>>         Documentation/DocBook/kgdb.tmpl >>>>>>         Documentation/DocBook/libata.tmpl >>>>>>         Documentation/DocBook/librs.tmpl >>>>>>         Documentation/DocBook/lsm.tmpl >>>>>>         Documentation/DocBook/mtdnand.tmpl >>>>>>         Documentation/DocBook/networking.tmpl >>>>>>         Documentation/DocBook/rapidio.tmpl >>>>>>         Documentation/DocBook/s390-drivers.tmpl >>>>>>         Documentation/DocBook/scsi.tmpl >>>>>>         Documentation/DocBook/sh.tmpl >>>>>>         Documentation/DocBook/stylesheet.xsl >>>>>>         Documentation/DocBook/w1.tmpl >>>>>>         Documentation/DocBook/z8530book.tmpl >>>>>>         Documentation/Makefile.sphinx >>>>>>         Documentation/RCU/trace.txt >>>>>> Documentation/devicetree/bindings/i2c/i2c-mt6577.txt >>>>>> Documentation/devicetree/bindings/misc/allwinner,syscon.txt >>>>>> Documentation/devicetree/bindings/net/cortina.txt >>>>>> Documentation/devicetree/bindings/net/dsa/ksz.txt >>>>>> Documentation/devicetree/bindings/net/dwmac-sun8i.txt >>>>>> Documentation/devicetree/bindings/net/qca,qca7000.txt >>>>>> Documentation/devicetree/bindings/power/max8903-charger.txt >>>>>> Documentation/devicetree/bindings/power_supply/maxim,max14656.txt >>>>>> Documentation/devicetree/bindings/ptp/brcm,ptp-dte.txt >>>>>> Documentation/devicetree/bindings/timer/moxa,moxart-timer.txt >>>>>>         Documentation/doc-guide/docbook.rst >>>>>>         Documentation/networking/tls.txt >>>>>>         Documentation/prctl/no_new_privs.txt >>>>>>         Documentation/prctl/seccomp_filter.txt >>>>>>         Documentation/security/00-INDEX >>>>>>         Documentation/security/IMA-templates.txt >>>>>>         Documentation/security/LSM.txt >>>>>>         Documentation/security/LoadPin.txt >>>>>>         Documentation/security/SELinux.txt >>>>>>         Documentation/security/Smack.txt >>>>>>         Documentation/security/Yama.txt >>>>>>         Documentation/security/apparmor.txt >>>>>>         Documentation/security/conf.py >>>>>>         Documentation/security/credentials.txt >>>>>>         Documentation/security/keys-ecryptfs.txt >>>>>>         Documentation/security/keys-request-key.txt >>>>>> Documentation/security/keys-trusted-encrypted.txt >>>>>>         Documentation/security/keys.txt >>>>>>         Documentation/security/self-protection.txt >>>>>>         Documentation/security/tomoyo.txt >>>>>>         Documentation/sphinx/convert_template.sed >>>>>>         Documentation/sphinx/post_convert.sed >>>>>>         Documentation/sphinx/tmplcvt >>>>>>         Documentation/usb/typec.rst >>>>>>         Documentation/usb/usb3-debug-port.rst >>>>>>         arch/arm/boot/dts/rk1108-evb.dts >>>>>>         arch/arm/boot/dts/rk1108.dtsi >>>>>>         arch/arm/boot/dts/tegra20-whistler.dts >>>>>>         arch/arm/mach-omap2/opp.c >>>>>>         arch/arm/mach-omap2/pmu.c >>>>>>         arch/ia64/include/asm/siginfo.h >>>>>>         arch/m32r/include/uapi/asm/siginfo.h >>>>>>         arch/microblaze/include/asm/bitops.h >>>>>>         arch/microblaze/include/asm/bug.h >>>>>>         arch/microblaze/include/asm/bugs.h >>>>>>         arch/microblaze/include/asm/div64.h >>>>>>         arch/microblaze/include/asm/emergency-restart.h >>>>>>         arch/microblaze/include/asm/fb.h >>>>>>         arch/microblaze/include/asm/hardirq.h >>>>>>         arch/microblaze/include/asm/irq_regs.h >>>>>>         arch/microblaze/include/asm/kdebug.h >>>>>>         arch/microblaze/include/asm/kmap_types.h >>>>>>         arch/microblaze/include/asm/linkage.h >>>>>>         arch/microblaze/include/asm/local.h >>>>>>         arch/microblaze/include/asm/local64.h >>>>>>         arch/microblaze/include/asm/parport.h >>>>>>         arch/microblaze/include/asm/percpu.h >>>>>>         arch/microblaze/include/asm/serial.h >>>>>>         arch/microblaze/include/asm/shmparam.h >>>>>>         arch/microblaze/include/asm/topology.h >>>>>>         arch/microblaze/include/asm/ucontext.h >>>>>>         arch/microblaze/include/asm/vga.h >>>>>>         arch/microblaze/include/asm/xor.h >>>>>>         arch/microblaze/include/uapi/asm/bitsperlong.h >>>>>>         arch/microblaze/include/uapi/asm/errno.h >>>>>>         arch/microblaze/include/uapi/asm/fcntl.h >>>>>>         arch/microblaze/include/uapi/asm/ioctl.h >>>>>>         arch/microblaze/include/uapi/asm/ioctls.h >>>>>>         arch/microblaze/include/uapi/asm/ipcbuf.h >>>>>>         arch/microblaze/include/uapi/asm/kvm_para.h >>>>>>         arch/microblaze/include/uapi/asm/mman.h >>>>>>         arch/microblaze/include/uapi/asm/msgbuf.h >>>>>>         arch/microblaze/include/uapi/asm/param.h >>>>>>         arch/microblaze/include/uapi/asm/poll.h >>>>>>         arch/microblaze/include/uapi/asm/resource.h >>>>>>         arch/microblaze/include/uapi/asm/sembuf.h >>>>>>         arch/microblaze/include/uapi/asm/shmbuf.h >>>>>>         arch/microblaze/include/uapi/asm/siginfo.h >>>>>>         arch/microblaze/include/uapi/asm/signal.h >>>>>>         arch/microblaze/includ >>>>>> Aborting >>>>>> >>>>>> >>>>>> >>>>>> W dniu 2017-09-20 o 11:45, Paweł Staszewski pisze: >>>>>>> Ok looks like ending bisection >>>>>>> >>>>>>> >>>>>>> Latest bisected kernel when there is no kernel panic 4.12.0+ >>>>>>> (from next)  - but only this warning: >>>>>>> >>>>>>> [  309.030019] NETDEV WATCHDOG: enp4s0f0 (ixgbe): transmit queue >>>>>>> 0 timed out >>>>>>> [  309.030034] ------------[ cut here ]------------ >>>>>>> [  309.030040] WARNING: CPU: 35 PID: 0 at dev_watchdog+0xcf/0x139 >>>>>>> [  309.030041] Modules linked in: bonding ipmi_si >>>>>>> x86_pkg_temp_thermal >>>>>>> [  309.030045] CPU: 35 PID: 0 Comm: swapper/35 Not tainted >>>>>>> 4.12.0+ #5 >>>>>>> [  309.030046] task: ffff88086d98a000 task.stack: ffffc90003378000 >>>>>>> [  309.030048] RIP: 0010:dev_watchdog+0xcf/0x139 >>>>>>> [  309.030049] RSP: 0018:ffff88087fbc3ea8 EFLAGS: 00010246 >>>>>>> [  309.030050] RAX: 000000000000003d RBX: ffff88046b680000 RCX: >>>>>>> 0000000000000000 >>>>>>> [  309.030050] RDX: ffff88087fbd2f01 RSI: 0000000000000000 RDI: >>>>>>> ffff88087fbcda08 >>>>>>> [  309.030051] RBP: ffff88087fbc3eb8 R08: 0000000000000000 R09: >>>>>>> ffff88087ff80a04 >>>>>>> [  309.030051] R10: 0000000000000000 R11: ffff88086d98a001 R12: >>>>>>> 0000000000000000 >>>>>>> [  309.030052] R13: ffff88087fbc3ef8 R14: ffff88086d98a000 R15: >>>>>>> ffffffff81c06008 >>>>>>> [  309.030053] FS:  0000000000000000(0000) >>>>>>> GS:ffff88087fbc0000(0000) knlGS:0000000000000000 >>>>>>> [  309.030054] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >>>>>>> [  309.030054] CR2: 00007fba600f6098 CR3: 000000086b955000 CR4: >>>>>>> 00000000001406e0 >>>>>>> [  309.030055] Call Trace: >>>>>>> [  309.030057]  >>>>>>> [  309.030059]  ? netif_tx_lock+0x79/0x79 >>>>>>> [  309.030062]  call_timer_fn.isra.24+0x17/0x77 >>>>>>> [  309.030063]  run_timer_softirq+0x118/0x161 >>>>>>> [  309.030065]  ? netif_tx_lock+0x79/0x79 >>>>>>> [  309.030066]  ? ktime_get+0x2b/0x42 >>>>>>> [  309.030070]  ? lapic_next_deadline+0x21/0x27 >>>>>>> [  309.030073]  ? clockevents_program_event+0xa8/0xc5 >>>>>>> [  309.030076]  __do_softirq+0xa8/0x19d >>>>>>> [  309.030078]  irq_exit+0x5d/0x6b >>>>>>> [  309.030079]  smp_apic_timer_interrupt+0x2a/0x36 >>>>>>> [  309.030082]  apic_timer_interrupt+0x89/0x90 >>>>>>> [  309.030085] RIP: 0010:mwait_idle+0x4e/0x6a >>>>>>> [  309.030086] RSP: 0018:ffffc9000337be98 EFLAGS: 00000246 >>>>>>> ORIG_RAX: ffffffffffffff10 >>>>>>> [  309.030087] RAX: 0000000000000000 RBX: 0000000000000000 RCX: >>>>>>> 0000000000000000 >>>>>>> [  309.030087] RDX: 0000000000000000 RSI: 0000000000000000 RDI: >>>>>>> ffff88086d98a000 >>>>>>> [  309.030088] RBP: ffffc9000337be98 R08: ffff88046f8279a0 R09: >>>>>>> ffff88046f827040 >>>>>>> [  309.030089] R10: ffff88086d98a000 R11: ffff88086d98a000 R12: >>>>>>> 0000000000000000 >>>>>>> [  309.030089] R13: ffff88086d98a000 R14: ffff88086d98a000 R15: >>>>>>> ffff88086d98a000 >>>>>>> [  309.030090]  >>>>>>> [  309.030094]  arch_cpu_idle+0xa/0xc >>>>>>> [  309.030095]  default_idle_call+0x19/0x1b >>>>>>> [  309.030102]  do_idle+0xbc/0x196 >>>>>>> [  309.030104]  cpu_startup_entry+0x1d/0x20 >>>>>>> [  309.030105]  start_secondary+0xd8/0xdc >>>>>>> [  309.030108]  secondary_startup_64+0x9f/0x9f >>>>>>> [  309.030109] Code: cc 75 bd eb 35 48 89 df c6 05 c3 dc 74 00 >>>>>>> 01 e8 3a 62 fe ff 44 89 e1 48 89 de 48 89 c2 48 c7 c7 0f 65 a4 >>>>>>> 81 31 c0 e8 3d 4c b5 ff <0f> ff 48 8b 83 e0 01 00 00 48 89 df ff >>>>>>> 50 78 48 8b 05 a0 bc 6a >>>>>>> [  309.030128] ---[ end trace 9102cb25703ae2d9 ]--- >>>>>>> >>>>>>> >>>>>>> I just marked it as good - cause this problem above is differend >>>>>>> - and im going to: >>>>>>> >>>>>>> git bisect good >>>>>>> Bisecting: 1787 revisions left to test after this (roughly 11 >>>>>>> steps) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> W dniu 2017-09-20 o 10:44, Paweł Staszewski pisze: >>>>>>>> Trying to make video from ipmi :) >>>>>>>> >>>>>>>> with that results: >>>>>>>> >>>>>>>> https://bugzilla.kernel.org/attachment.cgi?id=258521 >>>>>>>> >>>>>>>> catched two more lines where it starts - panic from 4.13.2. >>>>>>>> >>>>>>>> >>>>>>>> Now will try tro do some bisection >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> W dniu 2017-09-20 o 09:58, Paweł Staszewski pisze: >>>>>>>>> Hi >>>>>>>>> >>>>>>>>> >>>>>>>>> Will try bisecting tonight >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> W dniu 2017-09-20 o 05:24, Eric Dumazet pisze: >>>>>>>>>> On Wed, 2017-09-20 at 02:06 +0200, Paweł Staszewski wrote: >>>>>>>>>>> Just checked kernel 4.13.2 and same problem >>>>>>>>>>> >>>>>>>>>>> Just after start all 6 bgp sessions - and kernel starts to >>>>>>>>>>> learn routes >>>>>>>>>>> it panic. >>>>>>>>>>> >>>>>>>>>>> https://bugzilla.kernel.org/attachment.cgi?id=258509 >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Unfortunately we have not enough information from these traces. >>>>>>>>>> >>>>>>>>>> Can you get a full stack trace ? >>>>>>>>>> >>>>>>>>>> Alternatively, can you bisect ? >>>>>>>>>> >>>>>>>>>> Thanks. >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>> >>> >> >> > >