When compiling the sbs modules into the kernel, the system very often stalls when booting. [ 0.632142] ACPI: AC Adapter [ADP1] (off-line) [ 0.632224] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0 [ 0.632261] ACPI: Lid Switch [LID0] [ 0.632307] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1 [ 0.632336] ACPI: Power Button [PWRB] [ 0.632381] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input2 [ 0.632410] ACPI: Sleep Button [SLPB] [ 0.632454] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3 [ 0.632480] ACPI: Power Button [PWRF] [ 0.632785] ACPI: SBS HC: EC = 0xffff880265ba0e80, offset = 0x20, query_bit = 0x10 [ 1.098896] random: nonblocking pool is initialized [ 1.603738] tsc: Refined TSC clocksource calibration: 2400.000 MHz [ 2.604593] Switched to clocksource tsc [ 529.576106] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 529.576646] Non-volatile memory driver v1.3 [ 529.578082] Linux agpgart interface v0.103 Very occasionally however (1-10 boots, completly random if cold boot or reboot) sbs boots normally. [ 0.631947] ACPI: AC Adapter [ADP1] (off-line) [ 0.632028] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0 [ 0.632066] ACPI: Lid Switch [LID0] [ 0.632112] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1 [ 0.632142] ACPI: Power Button [PWRB] [ 0.632187] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input2 [ 0.632216] ACPI: Sleep Button [SLPB] [ 0.632262] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3 [ 0.632287] ACPI: Power Button [PWRF] [ 0.632593] ACPI: SBS HC: EC = 0xffff880265ba0e80, offset = 0x20, query_bit = 0x10 [ 0.669114] ACPI: Smart Battery System [SBS0]: Battery Slot [BAT0] (battery present) [ 0.669227] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.669781] Non-volatile memory driver v1.3 [ 0.669802] Linux agpgart interface v0.103 I've started to experience this when building 3.18, but I wouldn't be supprised if this bug is older then that; most/all distro kernels have this as a module. All works fine with everything built into the kernel (except for sbs/sbshc. I booted the kernel with the debug flag, but didn't get anything extra on this bit.
Is this a Macbook?
I forgot to mention, but yes, yes it is. Apple Inc. MacBookPro11,1/Mac-xxxx, BIOS MBP111.88Z.0138.B14.1501071216 01/07/201
*** This bug has been marked as a duplicate of bug 94651 ***