Most recent kernel where this bug did not occur: n/a
Distribution: Debian/Unstable
Hardware Environment: Asus M6A-B020H notebook
Software Environment: 
Problem Description: When I do S4 suspend/resume and then S3 suspend, machine
freezes in endless loop in AML interpreter. Using SYSRQ-P I can see, that
endless loop is in:
acpi_ps_parse_loop

Called sequence is:
syscall_call
sys_write
vfs_write
sysfs_write_file
state_store
enter_state
acpi_sleep_prepare
acpi_enable_wakeup_device_prep
acpi_enter_sleep_state_prep
acpi_evaluate_object
acpi_ns_evaluate_by_name
acpi_ns_evaluate_by_handle
acpi_ps_execute_method
acpi_ps_execute_pass
acpi_ps_parse_aml
acpi_ps_parse_loop

Other functions get called from acpi_ps_parse_loop are called (EIP changes when
several sysrq-p is trigered).

S3 suspend without previous S4 is OK.

I'm using:
echo shutdown > /sys/power/disk
echo mem > /sys/power/state

for S3 suspend. (I tried platform instead of shutdown, same result).