syzbot

panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.activeRWMutex:
goroutine 137 [running]:
gvisor.dev/gvisor/pkg/log.Stacks(0x60)
	pkg/log/log.go:316 +0xd3
gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc000237600, 0xc000237d00, {0xc00061b868, 0x1, 0x1})
	pkg/sync/locking/lockdep.go:56 +0x225
gvisor.dev/gvisor/pkg/sync/locking.checkLock.func1(0xc000237d98, 0xc000a84870)
	pkg/sync/locking/lockdep.go:76 +0x7a
gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsapmShard).doRange(0xc000237d80, 0xc000a849c8)
	bazel-out/k8-fastbuild-ST-a4501ad48192/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:403 +0x31f
gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).Range(0xc000237d80, 0xc000237600)
	bazel-out/k8-fastbuild-ST-a4501ad48192/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:382 +0x85
gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc000237600, 0xc000237d80, {0x0, 0x0, 0x0})
	pkg/sync/locking/lockdep.go:73 +0x4aa
gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc000237600, 0x0)
	pkg/sync/locking/lockdep.go:107 +0x33e
gvisor.dev/gvisor/pkg/sentry/mm.(*activeRWMutex).RLock(0xc00055c860)
	bazel-out/k8-fastbuild-ST-a4501ad48192/bin/pkg/sentry/mm/active_mutex.go:46 +0x53
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc00055c000, {0x1c703b0, 0xc0006a0a80}, {0x5e046c, 0x470e65}, {0xb2, 0x14, 0xbc}, 0x0, 0xc000a84ea0)
	pkg/sentry/mm/io.go:520 +0xa5
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc00055c000, {0x1c703b0, 0xc0006a0a80}, {0x0, 0x16c60b0, 0x0, 0x0}, {0x1, 0x0, 0x0}, ...)
	pkg/sentry/mm/io.go:591 +0x83f
gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc00055c000, {0x1c703b0, 0xc0006a0a80}, {0x0, 0x1, 0x1, 0x470e65}, {0x1c19320, 0xc0006337c0}, {0x0, ...})
	pkg/sentry/mm/io.go:310 +0x2e9
gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyInTo({{0x1c63768, 0xc00055c000}, {0x0, 0x1, 0x200000c0, 0x1}, {0x0, 0x1}}, {0x1c703b0, 0xc0006a0a80}, ...)
	pkg/usermem/usermem.go:515 +0xd8
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).pwrite(0xc0003be680, {0x1c703b0, 0xc0006a0a80}, {{0x1c63768, 0xc00055c000}, {0x0, 0x1, 0x200000c0, 0x1}, {0x0, ...}}, ...)
	pkg/sentry/fsimpl/tmpfs/regular_file.go:471 +0x5ae
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).PWrite(0x0, {0x1c703b0, 0xc0006a0a80}, {{0x1c63768, 0xc00055c000}, {0x0, 0x1, 0x200000c0, 0x1}, {0x0, ...}}, ...)
	pkg/sentry/fsimpl/tmpfs/regular_file.go:415 +0xbe
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).PWrite(0xc0003be680, {0x1c703b0, 0xc0006a0a80}, {{0x1c63768, 0xc00055c000}, {0x0, 0x1, 0x200000c0, 0x1}, {0x0, ...}}, ...)
	pkg/sentry/vfs/file_description.go:653 +0x18a
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.pwrite(0x12b5a4b, 0x200, {{0x1c63768, 0xc00055c000}, {0x0, 0x1, 0x200000c0, 0x1}, {0x0, 0x1}}, ...)
	pkg/sentry/syscalls/linux/vfs2/read_write.go:504 +0xc5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Pwrite64(0xc0006a0a80, {{0x3}, {0x200000c0}, {0x1}, {0x0}, {0xfe03f80fe03f80ff}, {0x0}})
	pkg/sentry/syscalls/linux/vfs2/read_write.go:421 +0x465
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0006a0a80, 0x12, {{0x3}, {0x200000c0}, {0x1}, {0x0}, {0xfe03f80fe03f80ff}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0xaf7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0006a0a80, 0x1, {{0x3}, {0x200000c0}, {0x1}, {0x0}, {0xfe03f80fe03f80ff}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x8e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0006803c0, 0x1, {{0x3}, {0x200000c0}, {0x1}, {0x0}, {0xfe03f80fe03f80ff}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0xc5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0006a0a80)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c7
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0006a0a80, 0xc0006a0a80)
	pkg/sentry/kernel/task_run.go:247 +0x19fc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0006a0a80)
	pkg/sentry/kernel/task_run.go:90 +0x2c2
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:364 +0x1b1