Hi Paul ! I was about to go debug something else when I hit that with -rc3 (plus the patch to fix the current bug.h breakage) on a 32-bit PowerMac G4 SMP (2 CPUs): About 1mn pause at boot followed by a bunch of RCU stall messages. Log below. Any idea where to start looking ?
pci 0002:20:0f.0: reg 30: [mem 0xf5100000-0xf51fffff pref] PCI 0000:00 Cannot reserve Legacy IO [io 0x802000-0x802fff] PCI 0001:10 Cannot reserve Legacy IO [io 0x0000-0x0fff] pci_bus 0000:00: resource 4 [io 0x802000-0x1001fff] pci_bus 0000:00: resource 5 [mem 0xf1000000-0xf1ffffff] pci_bus 0000:00: resource 6 [mem 0x90000000-0x9fffffff] pci_bus 0001:10: resource 4 [io 0x0000-0x7fffff] pci_bus 0001:10: resource 5 [mem 0xf3000000-0xf3ffffff] pci_bus 0001:10: resource 6 [mem 0x80000000-0x8fffffff] pci_bus 0002:20: resource 4 [io 0xff7fe000-0xffffdfff] pci_bus 0002:20: resource 5 [mem 0xf5000000-0xf5ffffff] bio: create slab <bio-0> at 0 vgaarb: device added: PCI:0000:00:10.0,decodes=io+mem,owns=io+mem,locks=none vgaarb: loaded vgaarb: bridge control possible 0000:00:10.0 SCSI subsystem initialized libata version 3.00 loaded. usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb Switching to clocksource timebase NET: Registered protocol family 2 IP route cache hash table entries: 32768 (order: 5, 131072 bytes) TCP established hash table entries: 131072 (order: 8, 1048576 bytes) TCP bind hash table entries: 65536 (order: 7, 524288 bytes) TCP: Hash tables configured (established 131072 bind 65536) TCP: reno registered UDP hash table entries: 512 (order: 2, 16384 bytes) UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) NET: Registered protocol family 1 RPC: Registered named UNIX socket transport module. RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. pci 0001:10:18.0: enabling device (0000 -> 0002) pci 0001:10:19.0: enabling device (0000 -> 0002) PCI: CLS mismatch (32 != 1020), using 32 bytes highmem bounce pool size: 64 pages NFS: Registering the id_resolver key type Key type id_resolver registered msgmni has been set to 1500 Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254) io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) Using unsupported 1680x1050 ATY,BlueStone_A at 9c008000, depth=8, pitch=1792 Console: switching to colour frame buffer device 210x65 fb0: Open Firmware frame buffer device on /pci@f0000000/ATY,BlueStoneParent@10/ATY,BlueStone_A Using unsupported 640x480 ATY,BlueStone_B at 99008000, depth=8, pitch=768 checking generic (9c008000 1cb600) vs hw (99008000 5a000) fb1: Open Firmware frame buffer device on /pci@f0000000/ATY,BlueStoneParent@10/ATY,BlueStone_B Generic RTC Driver v1.07 Generic non-volatile memory driver v1.1 brd: module loaded loop: module loaded MacIO PCI driver attached to Keylargo chipset adb: starting probe task... adb: finished probe task... mesh: configured for synchronous 5 MB/s st: Version 20101219, fixed bufsize 32768, s/g segs 256 pata-macio 0.0001f000:ata-4: Activating pata-macio chipset KeyLargo ATA-4, Apple bus ID 2 scsi0 : pata_macio ata1: PATA max UDMA/66 irq 19 ata1.00: ATA-5: ST380021A, 5.05, max UDMA/100 ata1.00: 156301488 sectors, multi 16: LBA ata1.01: ATA-5: ST380021A, 3.75, max UDMA/100 ata1.01: 156301488 sectors, multi 16: LBA ata1.00: configured for UDMA/66 ata1.01: configured for UDMA/66 scsi 0:0:0:0: Direct-Access ATA ST380021A 5.05 PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 156301488 512-byte logical blocks: (80.0 GB/74.5 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: Attached scsi generic sg0 type 0 sda: [mac] sda1 sda2 sda3 sda4 sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 sda13 sda14 sda15 sd 0:0:0:0: [sda] Attached SCSI disk scsi 0:0:1:0: Direct-Access ATA ST380021A 3.75 PQ: 0 ANSI: 5 sd 0:0:1:0: [sdb] 156301488 512-byte logical blocks: (80.0 GB/74.5 GiB) sd 0:0:1:0: [sdb] Write Protect is off sd 0:0:1:0: Attached scsi generic sg1 type 0 sd 0:0:1:0: [sdb] Mode Sense: 00 3a 00 00 sd 0:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA INFO: rcu_sched self-detected stall on CPU { 0} (t=16163 jiffies) Call Trace: INFO: rcu_sched self-detected stall on CPU { 1} (t=16163 jiffies) Call Trace: [ef877d30] [c0008d04] show_stack+0x50/0x158 (unreliable) [ef877d70] [c0097fe4] __rcu_pending+0x184/0x46c [ef877da0] [c00991a0] rcu_check_callbacks+0x7c/0x168 [ef877dc0] [c0044a40] update_process_times+0x3c/0x70 [ef877de0] [c0083a3c] tick_sched_timer+0x88/0x100 [ef877e10] [c005b11c] __run_hrtimer.clone.29+0x54/0x104 [ef877e30] [c005bf44] hrtimer_interrupt+0x158/0x3f8 [ef877ea0] [c000b5c4] timer_interrupt+0x1cc/0x204 [ef877ed0] [c0011b88] ret_from_except+0x0/0x1c --- Exception: 901 at cpu_idle+0xe4/0x188 LR = cpu_idle+0xc8/0x188 [ef877f90] [c00097e8] cpu_idle+0x60/0x188 (unreliable) [ef877fc0] [c046531c] start_secondary+0x2c8/0x2cc [ef877ff0] [00003278] 0x3278 [ef873b60] [c0008d04] show_stack+0x50/0x158 (unreliable) [ef873ba0] [c0097fe4] __rcu_pending+0x184/0x46c [ef873bd0] [c0099240] rcu_check_callbacks+0x11c/0x168 [ef873bf0] [c0044a40] update_process_times+0x3c/0x70 [ef873c10] [c0083a3c] tick_sched_timer+0x88/0x100 [ef873c40] [c005b11c] __run_hrtimer.clone.29+0x54/0x104 [ef873c60] [c005bf44] hrtimer_interrupt+0x158/0x3f8 [ef873cd0] [c000b5c4] timer_interrupt+0x1cc/0x204 [ef873d00] [c0011b88] ret_from_except+0x0/0x1c --- Exception: 901 at wake_up_new_task+0x134/0x16c LR = wake_up_new_task+0x134/0x16c [ef873dc0] [c0065f08] wake_up_new_task+0xfc/0x16c (unreliable) [ef873df0] [c0035530] do_fork+0xe8/0x2bc [ef873e30] [c0008a4c] sys_clone+0x50/0x90 [ef873e50] [c00114b8] ret_from_syscall+0x0/0x40 --- Exception: c00 at kernel_thread+0x28/0x68 LR = __call_usermodehelper+0x40/0xdc [ef873f10] [c005f5c8] async_run_entry_fn+0x128/0x1e4 (unreliable) [ef873f20] [ef878c00] 0xef878c00 [ef873f40] [c004e668] process_one_work+0x150/0x3f0 [ef873f70] [c00514f0] worker_thread+0x18c/0x37c [ef873fb0] [c00567bc] kthread+0x84/0x88 [ef873ff0] [c000f514] kernel_thread+0x4c/0x68 pata-macio 0.00020000:ata-3: Activating pata-macio chipset KeyLargo ATA-3, Apple bus ID 0 scsi1 : pata_macio ata2: PATA max MWDMA2 irq 20 sdb: [mac] sdb1 sdb2 sdb3 sdb4 sdb5 sdb6 sdb7 sdb8 sdb9 sdb10 sdb11 sdb12 sdb13 sd 0:0:1:0: [sdb] Attached SCSI disk ata2.00: ATAPI: PIONEER DVD-RW DVR-104, A227, max UDMA/33 ata2.00: configured for MWDMA2 scsi 1:0:0:0: CD-ROM PIONEER DVD-RW DVR-104 A227 PQ: 0 ANSI: 5 pata-macio 0.00021000:ata-3: Activating pata-macio chipset KeyLargo ATA-3, Apple bus ID 1 scsi2 : pata_macio ata3: PATA max MWDMA2 irq 21 sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray cdrom: Uniform CD-ROM driver Revision: 3.20 sr 1:0:0:0: Attached scsi CD-ROM sr0 pcnet32: pcnet32.c:v1.35 21.Apr.2008 tsbog...@alpha.franken.de sr 1:0:0:0: Attached scsi generic sg2 type 5 sungem.c:v1.0 David S. Miller <da...@redhat.com> gem 0002:20:0f.0: eth0: Sun GEM (PCI) 10/100/1000BaseT Ethernet 00:03:93:6f:04:b2 PPP generic driver version 2.4.2 PPP Deflate Compression module registered ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver ohci_hcd 0001:10:18.0: OHCI Host Controller ohci_hcd 0001:10:18.0: new USB bus registered, assigned bus number 1 ohci_hcd 0001:10:18.0: irq 27, io mem 0x80081000 hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected ohci_hcd 0001:10:19.0: OHCI Host Controller ohci_hcd 0001:10:19.0: new USB bus registered, assigned bus number 2 ohci_hcd 0001:10:19.0: irq 28, io mem 0x80080000 hub 2-0:1.0: USB hub found hub 2-0:1.0: 2 ports detected mousedev: PS/2 mouse device common for all mice usbcore: registered new interface driver appletouch PowerMac i2c bus pmu 2 registered i2c i2c-0: i2c-powermac: invalid reg on /pci@f2000000/mac-io@17/via-pmu@16000/rtc i2c i2c-0: i2c-powermac: invalid reg on /pci@f2000000/mac-io@17/via-pmu@16000/power-mgt PowerMac i2c bus pmu 1 registered i2c i2c-1: i2c-powermac: invalid reg on /pci@f2000000/mac-io@17/via-pmu@16000/rtc i2c i2c-1: i2c-powermac: invalid reg on /pci@f2000000/mac-io@17/via-pmu@16000/power-mgt PowerMac i2c bus mac-io 0 registered i2c i2c-2: i2c-powermac: invalid reg on /pci@f2000000/mac-io@17/i2c@18000/cereal i2c i2c-2: i2c-powermac: invalid reg on /pci@f2000000/mac-io@17/i2c@18000/deq i2c i2c-2: i2c-powermac: invalid reg on /pci@f2000000/mac-io@17/i2c@18000/i2c-modem PowerMac i2c bus uni-n 1 registered i2c i2c-3: i2c-powermac: invalid reg on /uni-n@f8000000/i2c@f8001000/cereal PowerMac i2c bus uni-n 0 registered i2c i2c-4: i2c-powermac: invalid reg on /uni-n@f8000000/i2c@f8001000/cereal APM Battery Driver usbcore: registered new interface driver usbhid usbhid: USB HID core driver oprofile: using ppc/7450 performance monitoring. TCP: cubic registered Initializing XFRM netlink socket NET: Registered protocol family 17 NET: Registered protocol family 15 Key type dns_resolver registered PM: Hibernation image not present or could not be loaded. input: PMU as /devices/virtual/input/input0 kjournald starting. Commit interval 5 seconds EXT3-fs (sda15): mounted filesystem with writeback data mode VFS: Mounted root (ext3 filesystem) readonly on device 8:15. usb 1-1: new full-speed USB device number 2 using ohci_hcd devtmpfs: mounted Freeing unused kernel memory: 240k freed hub 1-1:1.0: USB hub found hub 1-1:1.0: 3 ports detected usb 1-2: new full-speed USB device number 3 using ohci_hcd hub 1-2:1.0: USB hub found hub 1-2:1.0: 3 ports detected usb 1-1.3: new full-speed USB device number 4 using ohci_hcd input: Mitsumi Electric Apple Extended USB Keyboard as /devices/pci0001:10/0001:10:18.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input1 hid-generic 0003:05AC:020B.0001: input: USB HID v1.10 Keyboard [Mitsumi Electric Apple Extended USB Keyboard] on usb-0001:10:18.0-1.3/input0 input: Mitsumi Electric Apple Extended USB Keyboard as /devices/pci0001:10/0001:10:18.0/usb1/1-1/1-1.3/1-1.3:1.1/input/input2 hid-generic 0003:05AC:020B.0002: input: USB HID v1.10 Device [Mitsumi Electric Apple Extended USB Keyboard] on usb-0001:10:18.0-1.3/input1 usb 1-2.3: new low-speed USB device number 5 using ohci_hcd hid-generic 0003:05AC:9219.0003: claimed by neither input, hiddev nor hidraw udevd[1209]: starting version 175 EXT3-fs (sda15): using internal journal sungem_phy: PHY ID: 2060e1, addr: 0 gem 0002:20:0f.0: eth0: Found BCM5421 PHY gem 0002:20:0f.0: eth0: Link is up at 100 Mbps, full-duplex gem 0002:20:0f.0: eth0: Pause is enabled (rxfifo: 10240 off: 7168 on: 5632) sshd (2042): /proc/2042/oom_adj is deprecated, please use /proc/2042/oom_score_adj instead. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev