Marcelo Tosatti aa1346113c KVM: VMX: switch blocked_vcpu_on_cpu_lock to raw spinlock ... commit 5f02ef741a upstream. blocked_vcpu_on_cpu_lock is taken from hard interrupt context (pi_wakeup_handler), therefore it cannot sleep. Switch it to a raw spinlock. Fixes: [41297.066254] BUG: scheduling while atomic: CPU 0/KVM/635218/0x00010001 [41297.066323] Preemption disabled at: [41297.066324] [<ffffffff902ee47f>] irq_enter_rcu+0xf/0x60 [41297.066339] Call Trace: [41297.066342] <IRQ> [41297.066346] dump_stack_lvl+0x34/0x44 [41297.066353] ? irq_enter_rcu+0xf/0x60 [41297.066356] __schedule_bug.cold+0x7d/0x8b [41297.066361] __schedule+0x439/0x5b0 [41297.066365] ? task_blocks_on_rt_mutex.constprop.0.isra.0+0x1b0/0x440 [41297.066369] schedule_rtlock+0x1e/0x40 [41297.066371] rtlock_slowlock_locked+0xf1/0x260 [41297.066374] rt_spin_lock+0x3b/0x60 [41297.066378] pi_wakeup_handler+0x31/0x90 [kvm_intel] [41297.066388] sysvec_kvm_posted_intr_wakeup_ipi+0x9d/0xd0 [41297.066392] </IRQ> [41297.066392] asm_sysvec_kvm_posted_intr_wakeup_ipi+0x12/0x20 ... Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-01-27 10:53:40 +01:00
..
alpha	alpha: Declare virt_to_phys and virt_to_bus parameter as pointer to volatile	2021-09-30 10:11:07 +02:00
arc	ARC: export clear_user_page() for modules	2021-09-22 12:28:04 +02:00
arm	perf: Protect perf_guest_cbs with RCU	2022-01-20 09:17:50 +01:00
arm64	perf: Protect perf_guest_cbs with RCU	2022-01-20 09:17:50 +01:00
c6x	arch-cleanup-2020-10-22	2020-10-23 10:06:38 -07:00
csky	perf: Protect perf_guest_cbs with RCU	2022-01-20 09:17:50 +01:00
h8300	h8300: fix PREEMPTION build, TI_PRE_COUNT undefined	2021-02-17 11:02:28 +01:00
hexagon	hexagon: clean up timer-regs.h	2021-11-26 10:39:19 +01:00
ia64	ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK	2021-11-18 14:03:55 +01:00
m68k	m68k: set a default value for MEMORY_RESERVE	2021-11-18 14:04:24 +01:00
microblaze	local64.h: make <asm/local64.h> mandatory	2021-01-12 20:18:16 +01:00
mips	MIPS: use 3-level pgtable for 64KB page size on MIPS_VA_BITS_48	2021-12-01 09:19:07 +01:00
nds32	perf: Protect perf_guest_cbs with RCU	2022-01-20 09:17:50 +01:00
nios2	nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE_TEST	2021-11-02 19:48:23 +01:00
openrisc	openrisc: fix SMP tlb flush NULL pointer dereference	2021-11-18 14:04:25 +01:00
parisc	parisc: Clear stale IIR value on instruction access rights trap	2022-01-05 12:40:29 +01:00
powerpc	powerpc/pseries: Get entry and uaccess flush required bits from H_GET_CPU_CHARACTERISTICS	2022-01-20 09:17:52 +01:00
riscv	perf: Protect perf_guest_cbs with RCU	2022-01-20 09:17:50 +01:00
s390	KVM: s390: Clarify SIGP orders versus STOP/RESTART	2022-01-20 09:17:50 +01:00
sh	sh: define __BIG_ENDIAN for math-emu	2021-11-26 10:39:12 +01:00
sparc	sparc64: fix pci_iounmap() when CONFIG_PCI is not set	2021-10-09 14:40:56 +02:00
um	um: virtio_uml: fix memory leak on init failures	2021-09-26 14:08:57 +02:00
x86	KVM: VMX: switch blocked_vcpu_on_cpu_lock to raw spinlock	2022-01-27 10:53:40 +01:00
xtensa	xtensa: xtfpga: Try software restart before simulating CPU reset	2021-10-27 09:56:47 +02:00
.gitignore
Kconfig	arch/cc: Introduce a function to check for confidential computing features	2021-11-18 14:04:32 +01:00