After successful compilation of HPPA 2.6.15.1 kernel and system setup ( all 64bit ). Booting into box normally with connected keyboard ( USB ) and monitor all goes fine. But... When I try to unplug keyboard and drive box from null modem ( serial ) I got kernel panic and all mounted systems become damaged ( booting from cd and and calling xfs_repair fixes file system ). And again THIS happens only with serial connection... working with keyboard goes fine. Here what I got: Booting... Boot IO Dependent Code (IODC) revision 0 HARD Booted. palo ipl 1.10 root@hake Mon Feb 13 02:41:48 Local time zone must be set--see zic manual page 2006 Skipping extended partition 5 - beyond reach of IPL Partition Start(MB) End(MB) Id Type 1 1 133 f0 Palo 2 134 384 83 ext2 3 385 9930 83 ext2 PALO(F0) partition contains: Information: No console specified on kernel command line. This is normal. PALO will choose the console currently used by firmware (serial). Command line for kernel: 'root=/dev/sda3 console=ttyS0 palo_kernel=2/vmlinux-2.6.15.1' Selected kernel: /vmlinux-2.6.15.1 from partition 2 ELF64 executable Entry 00100000 first 00100000 n 3 Segment 0 load 00100000 size 3840144 mediaptr 0x1000 Segment 1 load 004ac000 size 353368 mediaptr 0x3ab000 Segment 2 load 00504000 size 245894 mediaptr 0x402000 Branching to kernel entry point 0x00100000. If this is the last message you see, you may need to switch your console. This is a common symptom -- search the FAQ and mailing list at parisc-linux.org Linux version 2.6.15.1-pa4 (root@livecd) (gcc version 3.4.5 (Gentoo Linux 3.4.5)) #1 Thu May 11 03:32:11 CEST 26FP[0] enabled: Rev 1 Model 16 The 64-bit Kernel has started... Initialized PDC Console for debugging. Determining PDC firmware type: System Map. model 00005cf0 00000481 00000000 00000002 77be6112 100000f0 00000008 000000b2 000000b2 vers 00000301 CPUID vers 17 rev 11 (0x0000022b) capabilities 0x3 model 9000/785/C3600 Total Memory: 3840 MB LCD display at fffffff0f05d0008,fffffff0f05d0000 registered Built 1 zonelists Kernel command line: root=/dev/sda3 console=ttyS0 palo_kernel=2/vmlinux-2.6.15.1 PID hash table entries: 4096 (order: 12, 131072 bytes) Console: colour dummy device 160x64 Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) Memory: 3932160k available Mount-cache hash table entries: 256 NET: Registered protocol family 16 Searching for devices... Found devices: 1. Astro BC Runway Port at 0xfffffffffed00000 [10] { 12, 0x0, 0x582, 0x0000b } 2. Elroy PCI Bridge at 0xfffffffffed30000 [10/0] { 13, 0x0, 0x782, 0x0000a } 3. Elroy PCI Bridge at 0xfffffffffed32000 [10/1] { 13, 0x0, 0x782, 0x0000a } 4. Elroy PCI Bridge at 0xfffffffffed38000 [10/4] { 13, 0x0, 0x782, 0x0000a } 5. Elroy PCI Bridge at 0xfffffffffed3c000 [10/6] { 13, 0x0, 0x782, 0x0000a } 6. Allegro W+ at 0xfffffffffffa0000 [32] { 0, 0x0, 0x5cf, 0x00004 } 7. Memory at 0xfffffffffed10200 [49] { 1, 0x0, 0x09c, 0x00009 } CPU(s): 1 x PA8600 (PCX-W+) at 552.000000 MHz Setting cache flush threshold to 249300 (1 CPUs online) SBA found Astro 2.1 at 0xfffffffffed00000 LBA version TR4.0 (0x5) found at 0xfffffffffed30000 PCI: Enabled native mode for NS87415 (pif=0x8f) LBA version TR4.0 (0x5) found at 0xfffffffffed32000 LBA version TR4.0 (0x5) found at 0xfffffffffed38000 LBA version TR4.0 (0x5) found at 0xfffffffffed3c000 iosapic: hpa not registered for 0000:03:02.0 SCSI subsystem initialized usbcore: registered new driver usbfs usbcore: registered new driver hub unwind_init: start = 0x103fd7c0, end = 0x10420100, entries = 8852 Performance monitoring counters enabled for Allegro W+ audit: initializing netlink socket (disabled) audit(1147352074.650:1): initialized VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 512 (order 0, 4096 bytes) SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled SGI XFS Quota Management subsystem Initializing Cryptographic API io scheduler noop registered io scheduler cfq registered SuperIO: Found NS87560 Legacy I/O device at 0000:00:0e.1 (IRQ 19) SuperIO: Serial port 1 at 0x3f8 SuperIO: Serial port 2 at 0x2f8 SuperIO: Parallel port at 0x378 SuperIO: Floppy controller at 0x3f0 SuperIO: ACPI at 0x7e0 SuperIO: USB regulator enabled PDC Stable Storage facility v0.22 Soft power switch enabled, polling @ 0xfffffff0f0400804. STI GSC/PCI core graphics driver Version 0.9a STI PCI graphic ROM found at fffffffff7000000 (2048 kB), fb at fffffffffa000000 (32 MB) id 35acda30-9a02587, conforms to spec rev. 8.0d graphics card name: A1262A sticon: Initializing STI text console. Console: switching to colour STI console 160x64 stifb: 'A1262A' (id: 0x35acda30) not supported. Generic RTC Driver v1.07 RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize sym0: <896> rev 0x7 at pci 0000:00:0f.0 irq 20 sym0: PA-RISC Firmware, ID 7, Fast-40, SE, parity checking sym0: SCSI BUS has been reset. sym0: SCSI BUS mode change from SE to SE. sym0: SCSI BUS has been reset. scsi0 : sym-2.2.2 sym1: <896> rev 0x7 at pci 0000:00:0f.1 irq 20 sym1: PA-RISC Firmware, ID 7, Fast-40, LVD, parity checking sym1: SCSI BUS has been reset. scsi1 : sym-2.2.2 Vendor: HP 36.4G Model: ST336706LC Rev: HP03 Type: Direct-Access ANSI SCSI revision: 02 target1:0:6: tagged command queuing enabled, command queue depth 16. target1:0:6: Beginning Domain Validation target1:0:6: asynchronous. target1:0:6: wide asynchronous. target1:0:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31) target1:0:6: Domain Validation skipping write tests target1:0:6: Ending Domain Validation SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB) SCSI device sda: drive cache: write back SCSI device sda: 71132960 512-byte hdwr sectors (36420 MB) SCSI device sda: drive cache: write back sda: sda1 sda2 sda3 sda4 < sda5 > sd 1:0:6:0: Attached scsi disk sda usbmon: debugfs is not available ohci_hcd 0000:00:0e.2: OHCI Host Controller ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1 ohci_hcd 0000:00:0e.2: irq 1, io mem 0xfffffffff4007000 usb usb1: Product: OHCI Host Controller usb usb1: Manufacturer: Linux 2.6.15.1-pa4 ohci_hcd usb usb1: SerialNumber: 0000:00:0e.2 hub 1-0:1.0: USB hub found hub 1-0:1.0: 3 ports detected mice: PS/2 mouse device common for all mice oprofile: using timer interrupt. NET: Registered protocol family 2 IP route cache hash table entries: 131072 (order: 8, 1048576 bytes) TCP established hash table entries: 524288 (order: 10, 4194304 bytes) TCP bind hash table entries: 65536 (order: 7, 524288 bytes) TCP: Hash tables configured (established 524288 bind 65536) TCP reno registered TCP bic registered NET: Registered protocol family 1 NET: Registered protocol family 10 lo: Disabled Privacy Extensions IPv6 over IPv4 tunneling driver NET: Registered protocol family 17 XFS mounting filesystem sda3 VFS: Mounted root (xfs filesystem) readonly. Freeing unused kernel memory: 244k freed _______________________________ < Your System ate a SPARC! Gah! > ------------------------------- \ ^__^ \ (xx)\_______ (__)\ )\/\ U ||----w | || || swapper (pid 1): Breakpoint (code 0) YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI PSW: 00001000000001001111111100001111 Not tainted r00-03 0000000000000000 00000000104f7700 00000000102a35a0 ffffffffffffffed r04-07 00000000104f1f00 000000000800000f 00000000fff5b0c0 0000000000000001 r08-11 0000000000500001 0000000000000802 000f41fa469d4040 0000000010479e00 r12-15 000000003b9aca00 00000000ffffffff 0000000000000000 00000000f0400004 r16-19 00000000f00008c4 00000000f000017c 00000000f0000174 0000000000040001 r20-23 0000000010492f58 0000000010492f58 00000000103cec70 0000000000000000 r24-27 0000000000000001 00000000fff5b0c0 0000000010535000 00000000104cc340 r28-31 0000000000000000 0000000014704640 0000000014704670 00000000ff8cf430 sr0-3 0000000000000000 0000000000000000 0000000000000000 0000000000000000 sr4-7 0000000000000000 0000000000000000 0000000000000000 0000000000000000 VZOUICununcqcqcqcqcqcrmunTDVZOUI FPSR: 00000100000100000000100000000000 FPER1: 24850e06 fr00-03 0000000000000000 0000001f00000000 0000001f00000000 0000001f00000000 fr04-07 0000000000000000 5555555555555555 5555555555555555 5555555555555555 fr08-11 5555555555555555 5555555555555555 5555555555555555 5555555555555555 fr12-15 5555555555555555 5555555555555555 5555555555555555 5555555555555555 fr16-19 5555555555555555 5555555555555555 5555555555555555 5555555555555555 fr20-23 5555555555555555 5555555555555555 000000001a03f064 000000000000246c fr24-27 00000f9bffffe5fc 5555555555555555 5555555555555555 5555555555555555 fr28-31 5555555555555555 5555555555555555 5555555555555555 5555555555555555 IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000104f0ec0 00000000104f0ec4 IIR: 00000000 ISR: 0000000000000000 IOR: 0000000000000000 CPU: 0 CR30: 0000000014704000 CR31: 00000000104b0000 ORIG_R28: 0000000010161434 IAOQ[0]: 0x104f0ec0 IAOQ[1]: 0x104f0ec4 RP(r2): tty_open+0x318/0x498 Kernel panic - not syncing: Attempted to kill init! <3>scheduling while atomic: swapper/0x00000100/1 Backtrace: [<000000001010f9a0>] dump_stack+0x18/0x28 [<000000001010b73c>] schedule+0xa4/0x640 [<000000001014df90>] flush_cpu_workqueue+0x200/0x240 [<000000001014e000>] flush_workqueue+0x30/0x70 [<000000001014e584>] cancel_rearming_delayed_workqueue+0x2c/0x70 [<0000000010288a68>] lcd_print+0x60/0x210 [<0000000010289ee8>] process_shutdown+0x38/0x70 [<0000000010289fb0>] polling_tasklet_func+0x40/0x50 [<0000000010140580>] tasklet_action+0x70/0x108 [<0000000010140154>] __do_softirq+0x6c/0xf8 [<000000001010d08c>] __lock_text_end+0x44/0x58 [<00000000101402dc>] irq_exit+0x54/0x60 [<00000000101111bc>] do_cpu_irq_mask+0xcc/0xe8 [<0000000010104074>] intr_return+0x0/0xc [<000000001013d2e0>] do_exit+0xcb8/0xcc0 [<000000001010fb20>] die_if_kernel+0x170/0x188
I think some bugs were fixed in later version. Could you try with 2.6.16.14-pa11 ?
hppa-sources 2.6.16.14-pa11 fixes the problem.
