> > That did not go well - bisect found the following commit but that does > > not seem to be related at all. So probably the reproducibility is not > > 100% but more random. > > Now I reproduced the bug even with 4.7-rc1 so it is older than 4.7. Will > test further.
It gets stranger and stranger - my old 4.7 image worked fine, freshly compiled 4.7 exhibits the same problem. Toolchain has not changed, that I know for sure. What may have changed is kernel .config. My old conf was with whatever I had during 4.7. Then I upgraded to 4.8-rc3 and then 4.8 and selected values for "make oldconfig" new entries. Then went back to 4.7-rc1 and then to 4.7 with this config, answering quiestion about new options when any appeared. Diff is not available since I do not have the old configs archived. Any ideas where to continue from here? > > > > > > > 4c5773f9f5462dcb372857813918bbfe8c0cdcdd is the first bad commit > > commit 4c5773f9f5462dcb372857813918bbfe8c0cdcdd > > Author: Krzysztof Kozlowski <k...@kernel.org> > > Date: Sat May 28 11:54:12 2016 +0200 > > > > dt-bindings: clock: Add license and reformat Exynos5410 clock IDs > > > > Add license and copyrights (file introduced in 2014) to header with > > Exynos5410 clock IDs. Additionally reformat it to improve readability. > > > > Signed-off-by: Krzysztof Kozlowski <k...@kernel.org> > > Acked-by: Stephen Boyd <sb...@codeaurora.org> > > Reviewed-by: Javier Martinez Canillas <jav...@osg.samsung.com> > > Signed-off-by: Sylwester Nawrocki <s.nawro...@samsung.com> > > > > :040000 040000 acbd432e11366a8eb8775942bc7b8caa476226e2 > > 08e3a3f98c3d4fa2a93123c3f21b2847c06b4665 M include > > > > > > The whiole bisect log seems to dig around in unrelated places so at best > > it just narrows the window by adding some known-bad data points. > > > > git bisect start > > # good: [523d939ef98fd712632d93a5a2b588e477a7565e] Linux 4.7 > > git bisect good 523d939ef98fd712632d93a5a2b588e477a7565e > > # bad: [ef0e1ea8856bed6ff8394d3dfe77f2cab487ecea] Merge tag > > 'arc-4.8-rc4-fixes' of > > git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc > > git bisect bad ef0e1ea8856bed6ff8394d3dfe77f2cab487ecea > > # good: [e0b3f595d13b3e9ce9cdf53935e7f304c04b5b2b] affs ->d_compare(): > > don't bother with ->d_inode > > git bisect good e0b3f595d13b3e9ce9cdf53935e7f304c04b5b2b > > # bad: [77a87824ed676ca8ff8482e4157d3adb284fd381] > > clocksource/drivers/clps_711x: fixup for "ARM: clps711x: > > git bisect bad 77a87824ed676ca8ff8482e4157d3adb284fd381 > > # bad: [27acbec338113a75b9d72aeb53149a3538031dda] Merge > > git://www.linux-watchdog.org/linux-watchdog > > git bisect bad 27acbec338113a75b9d72aeb53149a3538031dda > > # bad: [7f155c702677d057d03b192ce652311de5434697] Merge tag 'nfs-for-4.8-1' > > of git://git.linux-nfs.org/projects/trondmy/linux-nfs > > git bisect bad 7f155c702677d057d03b192ce652311de5434697 > > # good: [797cee982eef9195736afc5e7f3b8f613c41d19a] Merge branch > > 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit > > git bisect good 797cee982eef9195736afc5e7f3b8f613c41d19a > > # bad: [1056c9bd2702ea1bb79abf9bd1e78c578589d247] Merge tag > > 'clk-for-linus-4.8' of > > git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux > > git bisect bad 1056c9bd2702ea1bb79abf9bd1e78c578589d247 > > # bad: [1ff435d3571199a799ba6ccfe05544dcd21b9fb3] Merge branch > > 'clk-st-critical' into clk-next > > git bisect bad 1ff435d3571199a799ba6ccfe05544dcd21b9fb3 > > # bad: [0e4504470667d355b53ca3c9802fdd2120c9f946] clk: samsung: exynos5433: > > Add CLK_IGNORE_UNUSED flag to PCIE device > > git bisect bad 0e4504470667d355b53ca3c9802fdd2120c9f946 > > # bad: [880c81b3b6604a004d56b5975c8bed47276e8bf6] clk: samsung: exynos5440: > > Constify all clock initializers > > git bisect bad 880c81b3b6604a004d56b5975c8bed47276e8bf6 > > # bad: [b3a96eed8e84780d300b79b58047ea277ba358b7] clk: samsung: exynos3250: > > Move platform driver and of_device_id to init section > > git bisect bad b3a96eed8e84780d300b79b58047ea277ba358b7 > > # bad: [4528dd8ed477bf202bd33ee48d38d656672d37f8] dt-bindings: clock: Add > > watchdog and SSS clock IDs to Exynos5410 > > git bisect bad 4528dd8ed477bf202bd33ee48d38d656672d37f8 > > # bad: [5cd3535a27a7cf8fc4070b499d66e419e7e72b61] dt-bindings: clock: Add > > PWM and USB clock IDs to Exynos5410 > > git bisect bad 5cd3535a27a7cf8fc4070b499d66e419e7e72b61 > > # bad: [4c5773f9f5462dcb372857813918bbfe8c0cdcdd] dt-bindings: clock: Add > > license and reformat Exynos5410 clock IDs > > git bisect bad 4c5773f9f5462dcb372857813918bbfe8c0cdcdd > > # first bad commit: [4c5773f9f5462dcb372857813918bbfe8c0cdcdd] dt-bindings: > > clock: Add license and reformat Exynos5410 clock IDs > > > > > > > > > > [ 74.123859] tg3.c:v3.137 (May 11, 2014) > > > [ 74.123880] PCI: Enabling device: (0000:00:02.0), cmd 2 > > > [ 74.315794] tg3 0000:00:02.0 (unnamed net_device) (uninitialized): > > > Cannot get nvram lock, tg3_nvram_init failed > > > [ 74.656152] tg3 0000:00:02.0 eth0: Tigon3 [partno(none) rev 2003] > > > (PCI:66MHz:64-bit) MAC address 00:03:ba:0a:f3:85 > > > [ 74.656160] tg3 0000:00:02.0 eth0: attached PHY is 5704 > > > (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0]) > > > [ 74.656167] tg3 0000:00:02.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] > > > ASF[0] TSOcap[1] > > > [ 74.656172] tg3 0000:00:02.0 eth0: dma_rwctrl[763f0000] > > > dma_mask[32-bit] > > > [ 74.656322] PCI: Enabling device: (0000:00:02.1), cmd 2 > > > [ 74.845325] tg3 0000:00:02.1 (unnamed net_device) (uninitialized): > > > Cannot get nvram lock, tg3_nvram_init failed > > > [ 75.184539] tg3 0000:00:02.1 eth1: Tigon3 [partno(none) rev 2003] > > > (PCI:66MHz:64-bit) MAC address 00:03:ba:0a:f3:86 > > > [ 75.184546] tg3 0000:00:02.1 eth1: attached PHY is 5704 > > > (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0]) > > > [ 75.184551] tg3 0000:00:02.1 eth1: RXcsums[1] LinkChgREG[0] MIirq[0] > > > ASF[0] TSOcap[1] > > > [ 75.184557] tg3 0000:00:02.1 eth1: dma_rwctrl[763f0000] > > > dma_mask[32-bit] > > > [ 75.184708] PCI: Enabling device: (0003:00:02.0), cmd 2 > > > [ 75.375322] tg3 0003:00:02.0 (unnamed net_device) (uninitialized): > > > Cannot get nvram lock, tg3_nvram_init failed > > > [ 75.714681] tg3 0003:00:02.0 eth2: Tigon3 [partno(none) rev 2003] > > > (PCI:66MHz:64-bit) MAC address 00:03:ba:0a:f3:87 > > > [ 75.714688] tg3 0003:00:02.0 eth2: attached PHY is 5704 > > > (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0]) > > > [ 75.714694] tg3 0003:00:02.0 eth2: RXcsums[1] LinkChgREG[0] MIirq[0] > > > ASF[0] TSOcap[1] > > > [ 75.714699] tg3 0003:00:02.0 eth2: dma_rwctrl[763f0000] > > > dma_mask[32-bit] > > > [ 75.714819] PCI: Enabling device: (0003:00:02.1), cmd 2 > > > [ 75.905278] tg3 0003:00:02.1 (unnamed net_device) (uninitialized): > > > Cannot get nvram lock, tg3_nvram_init failed > > > [ 76.244470] tg3 0003:00:02.1 eth3: Tigon3 [partno(none) rev 2003] > > > (PCI:66MHz:64-bit) MAC address 00:03:ba:0a:f3:88 > > > [ 76.244477] tg3 0003:00:02.1 eth3: attached PHY is 5704 > > > (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0]) > > > [ 76.244482] tg3 0003:00:02.1 eth3: RXcsums[1] LinkChgREG[0] MIirq[0] > > > ASF[0] TSOcap[1] > > > [ 76.244488] tg3 0003:00:02.1 eth3: dma_rwctrl[763f0000] > > > dma_mask[32-bit] > > > [ 83.643317] tg3 0000:00:02.0 eth0: No firmware running > > > [...] > > > [ 83.716570] BUG: spinlock lockup suspected on CPU#0, dhclient/1014 > > > [ 83.797819] lock: 0xfff000123c8e4a08, .magic: dead4ead, .owner: > > > ip/1001, .owner_cpu: 1 > > > [ 83.903130] CPU: 0 PID: 1014 Comm: dhclient Not tainted 4.8.0 #4 > > > [ 83.982129] Call Trace: > > > [ 84.014160] [00000000004b7220] spin_dump+0x60/0xa0 > > > [ 84.078203] [00000000004b73a0] do_raw_spin_lock+0xa0/0x120 > > > [ 84.106344] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready > > > [ 84.107193] ip (1001) used greatest stack depth: 2168 bytes left > > > [ 84.306955] [000000000092c0d0] _raw_spin_lock_bh+0x30/0x40 > > > [ 84.380188] [00000000100822cc] tg3_get_stats64+0xc/0x80 [tg3] > > > [ 84.456885] [00000000007fac8c] dev_get_stats+0x2c/0xc0 > > > [ 84.525506] [000000000081a4e8] dev_seq_printf_stats+0x8/0xe0 > > > [ 84.600986] [000000000081a5e4] dev_seq_show+0x24/0x40 > > > [ 84.668467] [00000000005cb6c4] seq_read+0x2c4/0x440 > > > [ 84.733656] [000000000060b97c] proc_reg_read+0x3c/0x80 > > > [ 84.802282] [00000000005a219c] __vfs_read+0x1c/0x140 > > > [ 84.868613] [00000000005a2310] vfs_read+0x50/0x100 > > > [ 84.932662] [00000000005a265c] SyS_read+0x3c/0xa0 > > > [ 84.995573] [00000000004061d4] linux_sparc_syscall32+0x34/0x60 > > > [ 85.073748] * CPU[ 0]: TSTATE[00000044f0001a22] TPC[00000000f79a16b0] > > > TNPC[00000000f79a16b4] TASK[dhclient:1014] > > > [ 85.208732] TPC[f79a16b0] O7[f79405c8] I7[0] RPC[0] > > > [ 85.287633] CPU[ 1]: TSTATE[0000004480001605] TPC[00000000004b26f0] > > > TNPC[00000000004d0b0c] TASK[swapper/1:0] > > > [ 85.420338] TPC[trace_hardirqs_off+0x10/0x20] > > > O7[rcu_idle_enter+0x64/0xa0] I7[cpu_startup_entry+0x1b0/0x240] > > > RPC[rest_init+0x178/0x1a0] > > > [ 85.664600] tg3 0000:00:02.0 eth0: Link is up at 100 Mbps, full duplex > > > [ 85.750515] tg3 0000:00:02.0 eth0: Flow control is off for TX and off > > > for RX > > > [ 85.843994] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready > > > > > > > > > > > > -- Meelis Roos (mr...@linux.ee)
