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Date: Wed, 20 Sep 2017 15:16:13 +0200
From: Paweł Staszewski <pstaszewski@...are.pl>
To: Eric Dumazet <eric.dumazet@...il.com>, Wei Wang <weiwan@...gle.com>
Cc: Linux Kernel Network Developers <netdev@...r.kernel.org>,
edumazet@...gle.com
Subject: Re: Latest net-next from GIT panic
Yes sorry for top-posting also.
Configuration:
Ethernet devices:
lspci | grep Etherne
02:00.0 Ethernet controller: Intel Corporation I350 Gigabit Network
Connection (rev 01)
02:00.1 Ethernet controller: Intel Corporation I350 Gigabit Network
Connection (rev 01)
04:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
SFI/SFP+ Network Connection (rev 01)
04:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
SFI/SFP+ Network Connection (rev 01)
07:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
SFI/SFP+ Network Connection (rev 01)
07:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
SFI/SFP+ Network Connection (rev 01)
81:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
SFI/SFP+ Network Connection (rev 01)
81:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
SFI/SFP+ Network Connection (rev 01)
83:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
SFI/SFP+ Network Connection (rev 01)
83:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit
SFI/SFP+ Network Connection (rev 01)
ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode
DEFAULT qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp2s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state
DOWN mode DEFAULT qlen 8192
link/ether 00:25:90:e4:97:9a brd ff:ff:ff:ff:ff:ff
3: enp2s0f1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state
DOWN mode DEFAULT qlen 8192
link/ether 00:25:90:e4:97:9b brd ff:ff:ff:ff:ff:ff
4: enp4s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond1 state UP mode DEFAULT qlen 8192
link/ether 0c:c4:7a:bc:b8:68 brd ff:ff:ff:ff:ff:ff
5: enp4s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond0 state UP mode DEFAULT qlen 8192
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
6: enp7s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond1 state UP mode DEFAULT qlen 8192
link/ether 0c:c4:7a:bc:b8:68 brd ff:ff:ff:ff:ff:ff
7: enp7s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond0 state UP mode DEFAULT qlen 8192
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
8: enp129s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond1 state UP mode DEFAULT qlen 8192
link/ether 0c:c4:7a:bc:b8:68 brd ff:ff:ff:ff:ff:ff
9: enp129s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond0 state UP mode DEFAULT qlen 8192
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
10: enp131s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc
mq master bond1 state UP mode DEFAULT qlen 8192
link/ether 0c:c4:7a:bc:b8:68 brd ff:ff:ff:ff:ff:ff
11: enp131s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc
mq master bond0 state UP mode DEFAULT qlen 8192
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
12: sit0@...E: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT qlen 1000
link/sit 0.0.0.0 brd 0.0.0.0
13: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
14: bond1: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:68 brd ff:ff:ff:ff:ff:ff
15: vlan4091@...d0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
16: vlan4032@...d0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
17: vlan514@...d0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
18: vlan87@...d0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
19: vlan518@...d1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:68 brd ff:ff:ff:ff:ff:ff
20: vlan646@...d1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:68 brd ff:ff:ff:ff:ff:ff
21: vlan370@...d0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
22: vlan3212@...d0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
23: vlan746@...d0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP mode DEFAULT qlen 1000
link/ether 0c:c4:7a:bc:b8:69 brd ff:ff:ff:ff:ff:ff
There are bonds:
cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: enp4s0f1
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 0c:c4:7a:bc:b8:69
Slave queue ID: 0
Slave Interface: enp7s0f1
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:25:90:e3:dd:9d
Slave queue ID: 0
Slave Interface: enp129s0f1
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:25:90:e3:da:e1
Slave queue ID: 0
Slave Interface: enp131s0f1
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 0c:c4:7a:bc:b1:fd
Slave queue ID: 0
cat /proc/net/bonding/bond1
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: enp4s0f0
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 2
Permanent HW addr: 0c:c4:7a:bc:b8:68
Slave queue ID: 0
Slave Interface: enp7s0f0
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 00:25:90:e3:dd:9c
Slave queue ID: 0
Slave Interface: enp129s0f0
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 00:25:90:e3:da:e0
Slave queue ID: 0
Slave Interface: enp131s0f0
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 0c:c4:7a:bc:b1:fc
Slave queue ID: 0
About routing - installed frr with bgp/zebra support
6x BGP sessions with full BGP table ~600k prefixes
Ando some clients bgp sessions where prefixes from upstreams are advertised.
About 20 L3 ipv4 nexthops
W dniu 2017-09-20 o 15:11, Eric Dumazet pisze:
> Sorry for top-posting, but this is to give context to Wei, since Pawel
> used a top posting way to report his bisection.
>
> Wei, can you take a look at Pawel report ?
>
> Crash happens in dst_destroy() at following :
>
> if (dst->dev)
> dev_put(dst->dev); <<CRASH>>
>
>
> dst->dev is not NULL, but netdev->pcpu_refcnt is NULL
>
> 65 ff 08 decl %gs:(%rax) // CRASH since rax = NULL
>
>
>
> Pawel, please share your netdevices and routing setup ?
>
> Thanks !
>
> On Wed, 2017-09-20 at 14:49 +0200, Paweł Staszewski wrote:
>> 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] <IRQ>
>>>>>>> [ 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] </IRQ>
>>>>>>> [ 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.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>
>
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