Comment 2 for bug 1765869

Able to get this log before this system crashes again:

[ 195.136627] IPv6: ADDRCONF(NETDEV_UP): br0: link is not ready
[ 196.132773] IPv6: ADDRCONF(NETDEV_CHANGE): br0: link becomes ready
[ 1846.003893] ------------[ cut here ]------------
[ 1846.003989] WARNING: CPU: 2 PID: 0 at /build/linux-raspi2-8_qwlu/linux-raspi2-4.15.0/net/sched/sch_generic.c:323 dev_watchdog+0x280/0x284
[ 1846.004020] NETDEV WATCHDOG: usb0 (rndis_host): transmit queue 0 timed out
[ 1846.004039] Modules linked in: rndis_host cdc_ether fuse brcmfmac brcmutil cfg80211 uio_pdrv_genirq uio sch_fq_codel iscsi_tcp libiscsi_tcp libiscsi br_netfilter bridge stp llc ip_tables x_tables btrfs zstd_decompress zstd_compress xxhash raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq raid1 raid0 multipath linear aes_arm_bs crypto_simd cryptd
[ 1846.004310] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.15.0-1006-raspi2 #7-Ubuntu
[ 1846.004331] Hardware name: BCM2835
[ 1846.004382] [<80113374>] (unwind_backtrace) from [<8010e0fc>] (show_stack+0x20/0x24)
[ 1846.004409] [<8010e0fc>] (show_stack) from [<809d09b0>] (dump_stack+0xcc/0x110)
[ 1846.004441] [<809d09b0>] (dump_stack) from [<8012bf40>] (__warn+0xf0/0x108)
[ 1846.004471] [<8012bf40>] (__warn) from [<8012bfb0>] (warn_slowpath_fmt+0x58/0x74)
[ 1846.004498] [<8012bfb0>] (warn_slowpath_fmt) from [<808c563c>] (dev_watchdog+0x280/0x284)
[ 1846.004525] [<808c563c>] (dev_watchdog) from [<801b2d58>] (call_timer_fn+0x3c/0x210)
[ 1846.004549] [<801b2d58>] (call_timer_fn) from [<801b2ff8>] (expire_timers+0xcc/0x178)
[ 1846.004583] [<801b2ff8>] (expire_timers) from [<801b3198>] (run_timer_softirq+0xf4/0x1bc)
[ 1846.004615] [<801b3198>] (run_timer_softirq) from [<80101764>] (__do_softirq+0x164/0x460)
[ 1846.004643] [<80101764>] (__do_softirq) from [<801333c4>] (irq_exit+0xd8/0x104)
[ 1846.004669] [<801333c4>] (irq_exit) from [<801995d0>] (__handle_domain_irq+0x70/0xc4)
[ 1846.004692] [<801995d0>] (__handle_domain_irq) from [<801015fc>] (bcm2836_arm_irqchip_handle_irq+0xac/0xb0)
[ 1846.004727] [<801015fc>] (bcm2836_arm_irqchip_handle_irq) from [<809ed0f0>] (__irq_svc+0x70/0xb0)
[ 1846.004748] Exception stack(0xb8163f20 to 0xb8163f68)
[ 1846.004771] 3f20: 00000001 00000000 60070093 60070093 ffffe000 80f05df4 80f05e58 00000004
[ 1846.004789] 3f40: 00000000 00000000 80f05e68 b8163f7c b8163f70 b8163f70 80109d14 80109d18
[ 1846.004799] 3f60: 60070013 ffffffff
[ 1846.004825] [<809ed0f0>] (__irq_svc) from [<80109d18>] (arch_cpu_idle+0x34/0x4c)
[ 1846.004853] [<80109d18>] (arch_cpu_idle) from [<809ec3ac>] (default_idle_call+0x34/0x48)
[ 1846.004883] [<809ec3ac>] (default_idle_call) from [<8017af24>] (do_idle+0x1a8/0x244)
[ 1846.004910] [<8017af24>] (do_idle) from [<8017b2c4>] (cpu_startup_entry+0x28/0x2c)
[ 1846.004940] [<8017b2c4>] (cpu_startup_entry) from [<801108dc>] (secondary_start_kernel+0x17c/0x1a4)
[ 1846.004970] [<801108dc>] (secondary_start_kernel) from [<00101aec>] (0x101aec)
[ 1846.004995] ---[ end trace 5a9a7607770fbd76 ]---

Apr 20 18:46:02 bridge kernel: [ 195.136627] IPv6: ADDRCONF(NETDEV_UP): br0: link is not ready
Apr 20 18:46:03 bridge kernel: [ 196.132773] IPv6: ADDRCONF(NETDEV_CHANGE): br0: link becomes ready
Apr 20 19:13:33 bridge kernel: [ 1846.003893] ------------[ cut here ]------------
Apr 20 19:13:33 bridge kernel: [ 1846.003989] WARNING: CPU: 2 PID: 0 at /build/linux-raspi2-8_qwlu/linux-raspi2-4.15.0/net/sched/sch_generic.c:323 dev_watchdog+0x280/0x284
Apr 20 19:13:33 bridge kernel: [ 1846.004020] NETDEV WATCHDOG: usb0 (rndis_host): transmit queue 0 timed out
Apr 20 19:13:33 bridge kernel: [ 1846.004039] Modules linked in: rndis_host cdc_ether fuse brcmfmac brcmutil cfg80211 uio_pdrv_genirq uio sch_fq_codel iscsi_tcp libiscsi_tcp libiscsi br_netfilter bridge stp llc ip_tables x_tables btrfs zstd_decompress zstd_compress xxhash raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq raid1 raid0 multipath linear aes_arm_bs crypto_simd cryptd
Apr 20 19:13:33 bridge kernel: [ 1846.004310] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.15.0-1006-raspi2 #7-Ubuntu
Apr 20 19:13:33 bridge kernel: [ 1846.004331] Hardware name: BCM2835
Apr 20 19:13:33 bridge kernel: [ 1846.004382] [<80113374>] (unwind_backtrace) from [<8010e0fc>] (show_stack+0x20/0x24)
Apr 20 19:13:33 bridge kernel: [ 1846.004409] [<8010e0fc>] (show_stack) from [<809d09b0>] (dump_stack+0xcc/0x110)
Apr 20 19:13:33 bridge kernel: [ 1846.004441] [<809d09b0>] (dump_stack) from [<8012bf40>] (__warn+0xf0/0x108)
Apr 20 19:13:33 bridge kernel: [ 1846.004471] [<8012bf40>] (__warn) from [<8012bfb0>] (warn_slowpath_fmt+0x58/0x74)
Apr 20 19:13:33 bridge kernel: [ 1846.004498] [<8012bfb0>] (warn_slowpath_fmt) from [<808c563c>] (dev_watchdog+0x280/0x284)
Apr 20 19:13:33 bridge kernel: [ 1846.004525] [<808c563c>] (dev_watchdog) from [<801b2d58>] (call_timer_fn+0x3c/0x210)
Apr 20 19:13:33 bridge kernel: [ 1846.004549] [<801b2d58>] (call_timer_fn) from [<801b2ff8>] (expire_timers+0xcc/0x178)
Apr 20 19:13:33 bridge kernel: [ 1846.004583] [<801b2ff8>] (expire_timers) from [<801b3198>] (run_timer_softirq+0xf4/0x1bc)
Apr 20 19:13:33 bridge kernel: [ 1846.004615] [<801b3198>] (run_timer_softirq) from [<80101764>] (__do_softirq+0x164/0x460)
Apr 20 19:13:33 bridge kernel: [ 1846.004643] [<80101764>] (__do_softirq) from [<801333c4>] (irq_exit+0xd8/0x104)
Apr 20 19:13:33 bridge kernel: [ 1846.004669] [<801333c4>] (irq_exit) from [<801995d0>] (__handle_domain_irq+0x70/0xc4)
Apr 20 19:13:33 bridge kernel: [ 1846.004692] [<801995d0>] (__handle_domain_irq) from [<801015fc>] (bcm2836_arm_irqchip_handle_irq+0xac/0xb0)
Apr 20 19:13:33 bridge kernel: [ 1846.004727] [<801015fc>] (bcm2836_arm_irqchip_handle_irq) from [<809ed0f0>] (__irq_svc+0x70/0xb0)
Apr 20 19:13:33 bridge kernel: [ 1846.004748] Exception stack(0xb8163f20 to 0xb8163f68)
Apr 20 19:13:33 bridge kernel: [ 1846.004771] 3f20: 00000001 00000000 60070093 60070093 ffffe000 80f05df4 80f05e58 00000004
Apr 20 19:13:33 bridge kernel: [ 1846.004789] 3f40: 00000000 00000000 80f05e68 b8163f7c b8163f70 b8163f70 80109d14 80109d18
Apr 20 19:13:33 bridge kernel: [ 1846.004799] 3f60: 60070013 ffffffff
Apr 20 19:13:33 bridge kernel: [ 1846.004825] [<809ed0f0>] (__irq_svc) from [<80109d18>] (arch_cpu_idle+0x34/0x4c)
Apr 20 19:13:33 bridge kernel: [ 1846.004853] [<80109d18>] (arch_cpu_idle) from [<809ec3ac>] (default_idle_call+0x34/0x48)
Apr 20 19:13:33 bridge kernel: [ 1846.004883] [<809ec3ac>] (default_idle_call) from [<8017af24>] (do_idle+0x1a8/0x244)
Apr 20 19:13:33 bridge kernel: [ 1846.004910] [<8017af24>] (do_idle) from [<8017b2c4>] (cpu_startup_entry+0x28/0x2c)
Apr 20 19:13:33 bridge kernel: [ 1846.004940] [<8017b2c4>] (cpu_startup_entry) from [<801108dc>] (secondary_start_kernel+0x17c/0x1a4)
Apr 20 19:13:33 bridge kernel: [ 1846.004970] [<801108dc>] (secondary_start_kernel) from [<00101aec>] (0x101aec)
Apr 20 19:13:33 bridge kernel: [ 1846.004995] ---[ end trace 5a9a7607770fbd76 ]---