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Subjectactive bugs in the first week of 4.15 merge window
Hi Linus,

We see the below boot error IDs in 0day testing on your pre-RC1
merge commits. Most of them are not new regressions, and some are
known problems that have fixup patches planned for the upcoming -RC1.

In this thread, I'll show details and reproduce information for some
of them, hoping to shake off more old boot errors in mainline kernel.

BUG:kernel-hang-in-boot-stage
BUG:kernel-hang-in-test-stage
BUG:kernel-reboot-without-warning-in-test-stage
BUG:sleeping-function-called-from-invalid-context-at-lib-ioremap.c
BUG:unable-to-handle-kernel-NULL-pointer-dereference-at
BUG:unable-to-handle-kernel-NULL-pointer-dereference-at-null
BUG:unable-to-handle-kernel-paging-request-at
BUG:workqueue-lockup-pool
BUG:workqueue-lockup-pool-cpus=-node=-flags=-nice=-stuck-for
EIP:core_kernel_text
EIP:debug_lockdep_rcu_enabled
EIP:ftrace_likely_update
EIP:init_kernel_text
EIP:io_serial_in
EIP:io_serial_out
EIP:kernel_text_address
EIP:kvm_clock_read
EIP:memcmp
EIP:unwind_next_frame
INFO:rcu_preempt-detected-stalls-on-CPUs-tasks:
INFO:rcu_sched-detected-stalls-on-CPUs-tasks:
IP-Config:Auto-configuration-of-network-failed
Kernel-panic-not-syncing:Fatal-exception
Kernel-panic-not-syncing:hung_task:blocked-tasks
Kernel-panic-not-syncing:softlockup:hung-tasks
Oops:
Oops:PREEMPT-SMP
RIP:__asan_load1
RIP:__asan_load8
RIP:__asan_loadN
RIP:__asan_store8
RIP:__d_alloc
RIP:__do_softirq
RIP:__kernel_text_address
RIP:__lock_acquire
RIP:__lockdep_init_map
RIP:__save_stack_trace
RIP:arch_local_irq_restore
RIP:ata_dev_next
RIP:ata_host_detach
RIP:ata_port_detach
RIP:ata_port_wait_eh
RIP:butterfly_chipselect
RIP:check_memory_region
RIP:cpuidle_enter_state
RIP:deref_stack_reg
RIP:ftrace_likely_update
RIP:interval_tree_insert
RIP:interval_tree_remove
RIP:kasan_kmalloc
RIP:kobject_add_internal
RIP:mempool_free
RIP:native_safe_halt
RIP:pci_disable_device
RIP:perf_swevent_add
RIP:queued_spin_lock_slowpath
RIP:set_task_cpu
RIP:strlen
RIP:sysfs_warn_dup
RIP:trace_event_eval_update
RIP:update_event_printk
WARNING:CPU:PID:at-drivers-ata-libata-core.c-ata_host_detach
WARNING:CPU:PID:at-drivers-ata-libata-core.c-ata_port_detach
WARNING:CPU:PID:at-drivers-pci-pci.c-pci_disable_device
WARNING:CPU:PID:at-fs-sysfs-dir.c-sysfs_warn_dup
WARNING:CPU:PID:at-kernel-events-core.c-perf_swevent_add
WARNING:CPU:PID:at-kernel-locking-lockdep.c-__lock_acquire
WARNING:CPU:PID:at-kernel-sched-core.c-set_task_cpu
WARNING:CPU:PID:at-lib-kobject.c-kobject_add_internal
WARNING:possible-circular-locking-dependency-detected
general-protection-fault
genirq:Flags-mismatch-irq-ttyS0-vs.-sir_ir
softdog:Initiating-system-reboot
watchdog:BUG:soft-lockup-CPU-stuck-for-swapper

Regards,
Fengguang

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