Just tried 4.8.0-11288-gb66484c on three of my parsic machines (enabled strict usercopy checking or somethinng like that in make oldconfig). rp3440 worked fine. a500 and rp3410 cras on boot. rp3410 crashed on boot with the following: Linux version 4.8.0-11288-gb66484c (mroos@rp3410) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #81 Sat Oct 8 20:40:24 EEST 2016 unwind_init: start = 0x4076e980, end = 0x407a7060, entries = 14446 The 64-bit Kernel has started... Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size. bootconsole [ttyB0] enabled Initialized PDC Console for debugging. Determining PDC firmware type: 64 bit PAT. model 00008860 00000491 00000000 00000002 3e45475d0860fe3d 100000f0 00000008 000000b2 000000b2 vers 00000302 CPUID vers 20 rev 5 (0x00000285) capabilities 0x35 model 9000/800/rp3410 parisc_cache_init: Only equivalent aliasing supported! Memory Ranges: 0) Start 0x0000000000000000 End 0x000000003fffffff Size 1024 MB 1) Start 0x0000004040000000 End 0x000000407fdfffff Size 1022 MB Total Memory: 2046 MB Backtrace: [<0000000040102d40>] paging_init+0x5e0/0x740 [<0000000040103744>] setup_arch+0x16c/0x1b0 [<0000000040100ce0>] start_kernel+0xb8/0x668 Bad Address (null pointer deref?): Code=15 regs=00000000408034c0 (Addr=000000099cf94000) CPU: 0 PID: 0 Comm: swapper Not tainted 4.8.0-11288-gb66484c #81 task: 000000004087ea20 task.stack: 0000000040803000 YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI PSW: 00001000000001001111111100001110 Not tainted r00-03 000000ff0804ff0e 0000000000900000 00000000401024c4 00000000408033b0 r04-07 000000004074a3c0 0000000040af0000 0000004040000000 000000004088e104 r08-11 0000000040803490 000000407fe00000 0000004040000000 0000000000200000 r12-15 000000004076e3c0 0000000040122928 0000000040000000 0000000000000323 r16-19 0000004080000000 0000000000000400 0000000000000000 000000099cf94000 r20-23 0000000000001000 00000000009f2000 0000000000000001 0000000000000001 r24-27 00000000095cf940 00000000408e1c90 0000004080000000 000000004074a3c0 r28-31 0000004040000323 0000000040803510 00000000408034c0 000000099cf94000 sr00-03 0000000000000000 0000000000000000 0000000000000000 0000000000000000 sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000 IASQ: 0000000000000000 0000000000000000 IAOQ: 000000004010251c 0000000040102520 IIR: 0ffc12c0 ISR: 0000000000000000 IOR: 000000099cf94000 CPU: 0 CR30: 0000000040803000 CR31: fffffff0f0e05ee0 ORIG_R28: 00000000408036d0 IAOQ[0]: map_pages+0x234/0x320 IAOQ[1]: map_pages+0x238/0x320 RP(r2): map_pages+0x1dc/0x320 Backtrace: [<0000000040102d40>] paging_init+0x5e0/0x740 [<0000000040103744>] setup_arch+0x16c/0x1b0 [<0000000040100ce0>] start_kernel+0xb8/0x668 Kernel panic - not syncing: Bad Address (null pointer deref?) ---[ end Kernel panic - not syncing: Bad Address (null pointer deref?) A500 dies differently on boot: Linux version 4.8.0-11288-gb66484c (mroos@a500) (gcc version 5.4.0 (Gentoo 5.4.0 p1.0) ) #100 Sat Oct 8 22:11:04 EEST 2016 unwind_init: start = 0x4074ee10, end = 0x40787d90, entries = 14584 FP[0] enabled: Rev 1 Model 16 The 64-bit Kernel has started... Kernel default page size is 4 KB. Huge pages enabled with 1 MB physical and 2 MB virtual size. bootconsole [ttyB0] enabled Initialized PDC Console for debugging. Determining PDC firmware type: 64 bit PAT. model 00005cb0 00000491 00000000 00000001 5c5f29fa 100000f0 00000008 000000b2 000000b2 vers 00000301 CPUID vers 17 rev 11 (0x0000022b) capabilities 0x1 model 9000/800/A500-44 Memory Ranges: 0) Start 0x0000000000000000 End 0x000000003fffffff Size 1024 MB Total Memory: 1024 MB Built 1 zonelists in Zone order, mobility grouping on. Total pages: 258560 Kernel command line: root=/dev/sda3 console=ttyS0 palo_kernel=2/vmlinux PID hash table entries: 4096 (order: 3, 32768 bytes) Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Memory: 1022352K/1048576K available (4328K kernel code, 1812K rwdata, 576K rodata, 1024K init, 424K bss, 26224K reserved, 0K cma-reserved) virtual kernel memory layout: vmalloc : 0x0000000000008000 - 0x000000003f000000 (1007 MB) memory : 0x0000000040000000 - 0x0000000080000000 (1024 MB) .init : 0x0000000040100000 - 0x0000000040200000 (1024 kB) .data : 0x000000004063a000 - 0x000000004088f370 (2388 kB) .text : 0x0000000040200000 - 0x000000004063a000 (4328 kB) SLUB: HWalign=16, Order=0-3, MinObjects=0, CPUs=1, Nodes=8 NR_IRQS:80 clocksource: cr16: mask: 0xffffffffffffffff max_cycles: 0x657a3c2da0, max_idle_ns: 440795224593 ns Console: colour dummy device 160x64 Calibrating delay loop... 872.44 BogoMIPS (lpj=1744896) pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 2048 (order: 2, 16384 bytes) Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes) devtmpfs: initialized clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns NET: Registered protocol family 16 Searching for devices... Found devices: 1. Crescendo 440 at 0xfffffffffffa0000 [160] { 0, 0x0, 0x5cb, 0x00004 } 2. Memory at 0xfffffffffed08000 [8] { 1, 0x0, 0x09b, 0x00009 } 3. Astro BC Runway Port at 0xfffffffffed00000 [0] { 12, 0x0, 0x582, 0x0000b } 4. Elroy PCI Bridge at 0xfffffffffed30000 [0/0] { 13, 0x0, 0x782, 0x0000a } 5. Elroy PCI Bridge at 0xfffffffffed34000 [0/2] { 13, 0x0, 0x782, 0x0000a } 6. Elroy PCI Bridge at 0xfffffffffed38000 [0/4] { 13, 0x0, 0x782, 0x0000a } 7. Elroy PCI Bridge at 0xfffffffffed3c000 [0/6] { 13, 0x0, 0x782, 0x0000a } Enabling PDC_PAT chassis codes support v0.05 ********** VIRTUAL FRONT PANEL ********** System Boot detected ***************************************** LEDs: RUN ATTENTION FAULT REMOTE POWER FLASH FLASH FLASH ON ON LED State: Unexpected Reboot. Running non-OS code. Non-critical error detected. Check Chassis and Console Logs for error messages. processor system initialization 1C00 ***************************************** ************ EARLY BOOT VFP ************* End of early boot detected ***************************************** [<00000000402050c0>] _switch_to_ret+0x0/0xf40 CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.0-11288-gb66484c #100 Backtrace: [<00000000402152f4>] show_stack+0x14/0x20 [<000000004043a848>] dump_stack+0x30/0x40 [<0000000040215488>] die_if_kernel+0x180/0x298 [<0000000040216304>] handle_interruption+0x99c/0x9c0 ---[ end trace 61bce946a86921df ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b -- Meelis Roos (mroos@xxxxxxxx) -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html