From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4C4BC6D6.8070806@domain.hid> Date: Sat, 24 Jul 2010 22:08:38 -0700 From: Bob Feretich MIME-Version: 1.0 References: <4C43C83F.5030401@domain.hid> <4C43D265.9080609@domain.hid> <4C43FC4F.3010006@domain.hid> <4C440D6F.1060204@domain.hid> <4C44E9C9.3020600@domain.hid> <4C454C0C.6000100@domain.hid> <4C4550C8.3070504@domain.hid> <4C45541C.5090507@domain.hid> <4C45CEE6.5000903@domain.hid> <4C460506.3010103@domain.hid> <4C46141F.50103@domain.hid> <4C468040.3030509@domain.hid> <4C468485.5060408@domain.hid> <4C47597F.1010406@domain.hid> <4C478313.2030606@domain.hid> <4C48C1BB.8080606@domain.hid> <4C48C2CE.1030706@domain.hid> <4C4A292F.5040900@domain.hid> <4C4ADFC6.1010900@domain.hid> <4C4B35F1.60103@domain.hid> <4C4B379F.9040107@domain.hid> In-Reply-To: <4C4B379F.9040107@domain.hid> Content-Type: multipart/alternative; boundary="------------060008020109000509000507" Subject: Re: [Xenomai-help] Adeos patch prevents IRQ 384 (MMC Chip Detect) on omap-2.6.33 List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gilles Chanteperdrix Cc: xenomai@xenomai.org This is a multi-part message in MIME format. --------------060008020109000509000507 Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Transfer-Encoding: 8bit Test 1 results: With the Adeos patch installed, but Adeos disabled, the system ran normally. IRQ 384s were presented and serviced. (The SD card removal amd insertion was handled correctly.) Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24) Reading boot sector Loading u-boot.bin from mmc U-Boot 2009.06-rc2 (Nov 02 2009 - 23:57:20) OMAP3530-GP ES3.0, CPU-OPP2 L3-165MHz OMAP3 Beagle board + LPDDR/NAND DRAM: 256 MB NAND: 256 MiB In: serial Out: serial Err: serial Board revision C Die ID #317000030000000004013f8a1701a01b Hit any key to stop autoboot: 0 OMAP3 beagleboard.org # setenv bootargs 'console=ttyS2,115200n8 ip=192.168.1.81:192.168.1.80:192.168.1.1:255.25 5.255.0:beagleboard:eth0:off root=/dev/nfs rw nfsroot=192.168.1.80:/home/Bob/NFSROOT,nolock,rsize=1024,wsize=10 24 rootwait' OMAP3 beagleboard.org # boot mmc1 is available reading uImage 1902408 bytes read ## Booting kernel from Legacy Image at 80300000 ... Image Name: Angstrom/2.6.33/beagleboard Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1902344 Bytes = 1.8 MB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK Loading Kernel Image ... OK OK Starting kernel ... Uncompressing Linux... done, booting the kernel. Linux version 2.6.33 (Bob@domain.hid) (gcc version 4.3.3 (GCC) ) #2 Sat Jul 24 16:32:00 PDT 2010 CPU: ARMv7 Processor [411fc083] revision 3 (ARMv7), cr=10c53c7f CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache Machine: OMAP3 Beagle Board Memory policy: ECC disabled, Data cache writeback OMAP3430/3530 ES3.0 (l2cache iva sgx neon isp ) SRAM: Mapped pa 0x40200000 to va 0xfe400000 size: 0x100000 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024 Kernel command line: console=ttyS2,115200n8 ip=192.168.1.81:192.168.1.80:192.168.1.1:255.255.255.0:beagleboard: eth0:off root=/dev/nfs rw nfsroot=192.168.1.80:/home/Bob/NFSROOT,nolock,rsize=1024,wsize=1024 rootwait PID hash table entries: 1024 (order: 0, 4096 bytes) Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) Memory: 128MB 128MB = 256MB total Memory: 255872KB available (3292K code, 286K data, 120K init, 0K highmem) Hierarchical RCU implementation. RCU-based detection of stalled CPUs is enabled. NR_IRQS:402 Clocking rate (Crystal/Core/MPU): 26.0/332/500 MHz Reprogramming SDRC clock to 332000000 Hz GPMC revision 5.0 IRQ: Found an INTC at 0xfa200000 (revision 4.0) with 96 interrupts Total of 96 interrupts on 1 active controller OMAP GPIO hardware version 2.5 OMAP clockevent source: GPTIMER1 at 13000000 Hz Console: colour dummy device 80x30 Calibrating delay loop... 498.07 BogoMIPS (lpj=2490368) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok devtmpfs: initialized regulator: core version 0.5 NET: Registered protocol family 16 Found NAND on CS0 Registering NAND on CS0 OMAP DMA hardware revision 4.0 bio: create slab at 0 SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb i2c_omap i2c_omap.1: bus 1 rev3.12 at 2600 kHz twl4030: PIH (irq 7) chaining IRQs 368..375 twl4030: power (irq 373) chaining IRQs 376..383 twl4030: gpio (irq 368) chaining IRQs 384..401 regulator: VUSB1V5: 1500 mV normal standby regulator: VUSB1V8: 1800 mV normal standby regulator: VUSB3V1: 3100 mV normal standby twl4030_usb twl4030_usb: Initialized TWL4030 USB module regulator: VMMC1: 1850 <--> 3150 mV at 3000 mV normal standby regulator: VDAC: 1800 mV normal standby regulator: VDVI: 1800 mV normal standby regulator: VSIM: 1800 <--> 3000 mV at 1800 mV normal standby i2c_omap i2c_omap.3: bus 3 rev3.12 at 100 kHz Switching to clocksource gp timer musb_hdrc: version 6.0, musb-dma, otg (peripheral+host), debug=0 musb_hdrc: USB OTG mode controller at fa0ab000 using DMA, IRQ 92 NET: Registered protocol family 2 IP route cache hash table entries: 2048 (order: 1, 8192 bytes) TCP established hash table entries: 8192 (order: 4, 65536 bytes) TCP bind hash table entries: 8192 (order: 3, 32768 bytes) TCP: Hash tables configured (established 8192 bind 8192) TCP reno registered UDP hash table entries: 256 (order: 0, 4096 bytes) UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) NET: Registered protocol family 1 RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. VFS: Disk quotas dquot_6.5.2 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) JFFS2 version 2.2. (NAND) �© 2001-2006 Red Hat, Inc. msgmni has been set to 500 alg: No test for stdrng (krng) Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled serial8250.0: ttyS0 at MMIO 0x4806a000 (irq = 72) is a ST16654 serial8250.1: ttyS1 at MMIO 0x4806c000 (irq = 73) is a ST16654 serial8250.2: ttyS2 at MMIO 0x49020000 (irq = 74) is a ST16654 console [ttyS2] enabled brd: module loaded loop: module loaded usbcore: registered new interface driver asix usbcore: registered new interface driver cdc_ether usbcore: registered new interface driver net1080 usbcore: registered new interface driver cdc_subset usbcore: registered new interface driver zaurus usbmon: debugfs is not available ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ehci-omap ehci-omap.0: OMAP-EHCI Host Controller ehci-omap ehci-omap.0: new USB bus registered, assigned bus number 1 ehci-omap ehci-omap.0: irq 77, io mem 0x48064800 ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00 hub 1-0:1.0: USB hub found hub 1-0:1.0: 3 ports detected twl_rtc twl_rtc: rtc core: registered twl_rtc as rtc0 twl_rtc twl_rtc: Power up reset detected. twl_rtc twl_rtc: Enabling TWL-RTC. i2c /dev entries driver TCP cubic registered NET: Registered protocol family 17 NET: Registered protocol family 15 Power Management for TI OMAP3. VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1 regulator_init_complete: incomplete constraints, leaving VDVI on regulator_init_complete: incomplete constraints, leaving VDAC on twl_rtc twl_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800) usb 1-2: new high speed USB device using ehci-omap and address 2 mmc0: new high speed SDHC card at address 1234 mmcblk0: mmc0:1234 SA04G 3.68 GiB mmcblk0: p1 p2 eth0: register 'asix' at usb-ehci-omap.0-2, ASIX AX88772 USB 2.0 Ethernet, 00:50:b6:05:d2:0c eth0: link down eth0: link up, 100Mbps, half-duplex, lpa 0x40A1 IP-Config: Complete: device=eth0, addr=192.168.1.81, mask=255.255.255.0, gw=192.168.1.1, host=beagleboard, domain=, nis-domain=(none), bootserver=192.168.1.80, rootserver=192.168.1.80, rootpath= Looking up port of RPC 100003/2 on 192.168.1.80 Looking up port of RPC 100005/1 on 192.168.1.80 VFS: Mounted root (nfs filesystem) on device 0:13. devtmpfs: mounted Freeing init memory: 120K INIT: version 2.86 booting Please wait: booting... Starting udev EXT2-fs (mmcblk0p2): warning: mounting ext3 filesystem as ext2 Remounting root file system... Caching udev devnodes Populating dev cache root: mount: mounting rootfs on / failed: No such file or directory NOT configuring network interfaces: / is an NFS mount Tue May 18 20:58:00 UTC 2010 Starting to configure packages... Nothing to be done Finished to configure packages. INIT: Entering runlevel: 5 Starting Dropbear SSH server: dropbear. Starting syslogd/klogd: done .-------. | | .-. | | |-----.-----.-----.| | .----..-----.-----. | | | __ | ---'| '--.| .-'| | | | | | | | |--- || --'| | | ' | | | | '---'---'--'--'--. |-----''----''--' '-----'-'-'-' -' | '---' The Angstrom Distribution beagleboard ttyS2 Angstrom 2010.4-test-20100518 beagleboard ttyS2 beagleboard login: root root@domain.hid:~# /proc/interrupts -sh: /proc/interrupts: Permission denied root@domain.hid:~# cat /proc/interrupts CPU0 7: 0 INTC TWL4030-PIH 11: 0 INTC prcm 12: 198 INTC DMA 37: 2267 INTC gp timer 56: 318 INTC i2c_omap 61: 0 INTC i2c_omap 72: 1 INTC serial idle 73: 1 INTC serial idle 74: 177 INTC serial idle, serial 77: 11313 INTC ehci_hcd:usb1 83: 126 INTC mmc0 92: 0 INTC musb_hdrc 93: 0 INTC musb_hdrc 378: 0 twl4030 twl4030_usb 379: 0 twl4030 rtc0 384: 0 twl4030 mmc0 Err: 0 root@domain.hid:~# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/root 15868228 8775884 6931324 56% / devtmpfs 128088 132 127956 0% /dev none 128088 132 127956 0% /dev /dev/mmcblk0p1 197676 2075 195602 1% /media/mmcblk0p1 /dev/mmcblk0p2 3605300 72764 3349396 2% /media/mmcblk0p2 tmpfs 128088 16 128072 0% /var/volatile tmpfs 128088 0 128088 0% /dev/shm tmpfs 128088 0 128088 0% /media/ram root@domain.hid:~# umount /dev/mmcblk0p1 root@domain.hid:~# umount /dev/mmcblk0p2 root@domain.hid:~# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/root 15868228 8775884 6931324 56% / devtmpfs 128088 132 127956 0% /dev none 128088 132 127956 0% /dev tmpfs 128088 16 128072 0% /var/volatile tmpfs 128088 0 128088 0% /dev/shm tmpfs 128088 0 128088 0% /media/ram ***** removed SD card ************************************************** root@domain.hid:~# mmc0: card 1234 removed root@domain.hid:~# cat /proc/interrupts CPU0 7: 1 INTC TWL4030-PIH 11: 0 INTC prcm 12: 537 INTC DMA 37: 3789 INTC gp timer 56: 338 INTC i2c_omap 61: 0 INTC i2c_omap 72: 1 INTC serial idle 73: 1 INTC serial idle 74: 311 INTC serial idle, serial 77: 13030 INTC ehci_hcd:usb1 83: 192 INTC mmc0 92: 0 INTC musb_hdrc 93: 0 INTC musb_hdrc 378: 0 twl4030 twl4030_usb 379: 0 twl4030 rtc0 384: 1 twl4030 mmc0 Err: 0 *************** inserted SD card *********************** root@domain.hid:~# mmc0: new high speed SDHC card at address 1234 mmcblk0: mmc0:1234 SA04G 3.68 GiB mmcblk0: p1 p2 EXT2-fs (mmcblk0p2): warning: mounting ext3 filesystem as ext2 root@domain.hid:~# cat /proc/interrupts CPU0 7: 2 INTC TWL4030-PIH 11: 0 INTC prcm 12: 684 INTC DMA 37: 4292 INTC gp timer 56: 366 INTC i2c_omap 61: 0 INTC i2c_omap 72: 1 INTC serial idle 73: 1 INTC serial idle 74: 391 INTC serial idle, serial 77: 14060 INTC ehci_hcd:usb1 83: 312 INTC mmc0 92: 0 INTC musb_hdrc 93: 0 INTC musb_hdrc 378: 0 twl4030 twl4030_usb 379: 0 twl4030 rtc0 384: 2 twl4030 mmc0 Err: 0 root@domain.hid:~# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/root 15868228 8775884 6931324 56% / devtmpfs 128088 132 127956 0% /dev none 128088 132 127956 0% /dev tmpfs 128088 16 128072 0% /var/volatile tmpfs 128088 0 128088 0% /dev/shm tmpfs 128088 0 128088 0% /media/ram /dev/mmcblk0p1 197676 2075 195602 1% /media/mmcblk0p1 /dev/mmcblk0p2 3605300 72764 3349396 2% /media/mmcblk0p2 root@domain.hid:~# Test 2 results: With the Adeos patch installed, Adeos enabled, Xenomai disabled, the spurious irpt patch reverted.... The system ran normally, until an IRQ 384 occurred. Then continuous spurious interrupts occurred. Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24) Reading boot sector Loading u-boot.bin from mmc U-Boot 2009.06-rc2 (Nov 02 2009 - 23:57:20) OMAP3530-GP ES3.0, CPU-OPP2 L3-165MHz OMAP3 Beagle board + LPDDR/NAND DRAM: 256 MB NAND: 256 MiB In: serial Out: serial Err: serial Board revision C Die ID #317000030000000004013f8a1701a01b Hit any key to stop autoboot: 0 mmc1 is available reading uImage 1942588 bytes read ## Booting kernel from Legacy Image at 80300000 ... Image Name: Angstrom/2.6.33/beagleboard Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1942524 Bytes = 1.9 MB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK Loading Kernel Image ... OK OK Starting kernel ... Uncompressing Linux... done, booting the kernel. Linux version 2.6.33 (Bob@domain.hid) (gcc version 4.3.3 (GCC) ) #3 Sat Jul 24 19:40:30 PDT 2010 CPU: ARMv7 Processor [411fc083] revision 3 (ARMv7), cr=10c53c7f CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache Machine: OMAP3 Beagle Board Memory policy: ECC disabled, Data cache writeback OMAP3430/3530 ES3.0 (l2cache iva sgx neon isp ) SRAM: Mapped pa 0x40200000 to va 0xfe400000 size: 0x100000 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024 Kernel command line: console=ttyS2,115200n8 ip=192.168.1.81:192.168.1.80:192.168.1.1:255.255.255.0:beagleboard: eth0:off root=/dev/nfs rw nfsroot=192.168.1.80:/home/Bob/NFSROOT,nolock,rsize=1024,wsize=1024 rootwait PID hash table entries: 1024 (order: 0, 4096 bytes) Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) Memory: 128MB 128MB = 256MB total Memory: 255744KB available (3360K code, 341K data, 132K init, 0K highmem) Hierarchical RCU implementation. RCU-based detection of stalled CPUs is enabled. NR_IRQS:402 Clocking rate (Crystal/Core/MPU): 26.0/332/500 MHz Reprogramming SDRC clock to 332000000 Hz GPMC revision 5.0 IRQ: Found an INTC at 0xfa200000 (revision 4.0) with 96 interrupts Total of 96 interrupts on 1 active controller OMAP GPIO hardware version 2.5 OMAP clockevent source: GPTIMER1 at 13000000 Hz I-pipe 1.16-01: pipeline enabled. Console: colour dummy device 80x30 Calibrating delay loop... 498.07 BogoMIPS (lpj=2490368) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok devtmpfs: initialized regulator: core version 0.5 NET: Registered protocol family 16 Found NAND on CS0 Registering NAND on CS0 OMAP DMA hardware revision 4.0 bio: create slab at 0 SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb i2c_omap i2c_omap.1: bus 1 rev3.12 at 2600 kHz twl4030: PIH (irq 7) chaining IRQs 368..375 twl4030: power (irq 373) chaining IRQs 376..383 twl4030: gpio (irq 368) chaining IRQs 384..401 regulator: VUSB1V5: 1500 mV normal standby regulator: VUSB1V8: 1800 mV normal standby regulator: VUSB3V1: 3100 mV normal standby twl4030_usb twl4030_usb: Initialized TWL4030 USB module regulator: VMMC1: 1850 <--> 3150 mV at 3000 mV normal standby regulator: VDAC: 1800 mV normal standby regulator: VDVI: 1800 mV normal standby regulator: VSIM: 1800 <--> 3000 mV at 1800 mV normal standby i2c_omap i2c_omap.3: bus 3 rev3.12 at 100 kHz Switching to clocksource gp timer musb_hdrc: version 6.0, musb-dma, otg (peripheral+host), debug=0 musb_hdrc: USB OTG mode controller at fa0ab000 using DMA, IRQ 92 NET: Registered protocol family 2 IP route cache hash table entries: 2048 (order: 1, 8192 bytes) TCP established hash table entries: 8192 (order: 4, 65536 bytes) TCP bind hash table entries: 8192 (order: 3, 32768 bytes) TCP: Hash tables configured (established 8192 bind 8192) TCP reno registered UDP hash table entries: 256 (order: 0, 4096 bytes) UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) NET: Registered protocol family 1 RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. VFS: Disk quotas dquot_6.5.2 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) JFFS2 version 2.2. (NAND) �© 2001-2006 Red Hat, Inc. msgmni has been set to 499 alg: No test for stdrng (krng) Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled serial8250.0: ttyS0 at MMIO 0x4806a000 (irq = 72) is a ST16654 serial8250.1: ttyS1 at MMIO 0x4806c000 (irq = 73) is a ST16654 serial8250.2: ttyS2 at MMIO 0x49020000 (irq = 74) is a ST16654 console [ttyS2] enabled brd: module loaded loop: module loaded usbcore: registered new interface driver asix usbcore: registered new interface driver cdc_ether usbcore: registered new interface driver net1080 usbcore: registered new interface driver cdc_subset usbcore: registered new interface driver zaurus usbmon: debugfs is not available ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ehci-omap ehci-omap.0: OMAP-EHCI Host Controller ehci-omap ehci-omap.0: new USB bus registered, assigned bus number 1 ehci-omap ehci-omap.0: irq 77, io mem 0x48064800 ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00 hub 1-0:1.0: USB hub found hub 1-0:1.0: 3 ports detected twl_rtc twl_rtc: rtc core: registered twl_rtc as rtc0 twl_rtc twl_rtc: Power up reset detected. twl_rtc twl_rtc: Enabling TWL-RTC. i2c /dev entries driver TCP cubic registered NET: Registered protocol family 17 NET: Registered protocol family 15 Power Management for TI OMAP3. VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1 regulator_init_complete: incomplete constraints, leaving VDVI on regulator_init_complete: incomplete constraints, leaving VDAC on twl_rtc twl_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800) usb 1-2: new high speed USB device using ehci-omap and address 2 mmc0: new high speed SDHC card at address 1234 mmcblk0: mmc0:1234 SA04G 3.68 GiB mmcblk0: p1 p2 eth0: register 'asix' at usb-ehci-omap.0-2, ASIX AX88772 USB 2.0 Ethernet, 00:50:b6:05:d2:0c eth0: link down eth0: link up, 100Mbps, half-duplex, lpa 0x40A1 IP-Config: Complete: device=eth0, addr=192.168.1.81, mask=255.255.255.0, gw=192.168.1.1, host=beagleboard, domain=, nis-domain=(none), bootserver=192.168.1.80, rootserver=192.168.1.80, rootpath= Looking up port of RPC 100003/2 on 192.168.1.80 Looking up port of RPC 100005/1 on 192.168.1.80 VFS: Mounted root (nfs filesystem) on device 0:13. devtmpfs: mounted Freeing init memory: 132K INIT: version 2.86 booting Please wait: booting... Starting udev udev: starting version 151 udevadm settle - timeout of 3 seconds reached, the event queue contains: /sys/devices/platform/ehci-omap.0/usb1/1-2/1-2:1.0/net/eth0 (326) /sys/devices/platform/mmci-omap-hs.0/mmc_host/mmc0/mmc0:1234/block/mmcblk0 (347) /sys/devices/platform/mmci-omap-hs.0/mmc_host/mmc0/mmc0:1234/block/mmcblk0/mmcblk0p1 (348) /sys/devices/platform/mmci-omap-hs.0/mmc_host/mmc0/mmc0:1234/block/mmcblk0/mmcblk0p2 (349) Remounting root file system... Caching udev devnodes Populating dev cachemv: cannot rename '/tmp/uname': No such file or directory EXT2-fs (mmcblk0p2): warning: mounting ext3 filesystem as ext2 root: mount: mounting rootfs on / failed: No such file or directory NOT configuring network interfaces: / is an NFS mount Tue May 18 20:58:00 UTC 2010 Starting to configure packages... Nothing to be done Finished to configure packages. INIT: Entering runlevel: 5 Starting Dropbear SSH server: dropbear. Starting syslogd/klogd: done .-------. | | .-. | | |-----.-----.-----.| | .----..-----.-----. | | | __ | ---'| '--.| .-'| | | | | | | | |--- || --'| | | ' | | | | '---'---'--'--'--. |-----''----''--' '-----'-'-'-' -' | '---' The Angstrom Distribution beagleboard ttyS2 Angstrom 2010.4-test-20100518 beagleboard ttyS2 beagleboard login: root root@domain.hid:~# cat /proc/interrupts CPU0 7: 0 INTC TWL4030-PIH 11: 0 INTC prcm 12: 517 INTC DMA 37: 1062 INTC gp timer 56: 318 INTC i2c_omap 61: 0 INTC i2c_omap 72: 1 INTC serial idle 73: 1 INTC serial idle 74: 117 INTC serial idle, serial 77: 12033 INTC ehci_hcd:usb1 83: 171 INTC mmc0 92: 0 INTC musb_hdrc 93: 0 INTC musb_hdrc 378: 0 twl4030 twl4030_usb 379: 0 twl4030 rtc0 384: 0 twl4030 mmc0 Err: 0 root@domain.hid:~# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/root 15868228 8775276 6931932 56% / devtmpfs 128024 128 127896 0% /dev none 128024 128 127896 0% /dev /dev/mmcblk0p1 197676 2114 195562 1% /media/mmcblk0p1 tmpfs 128024 16 128008 0% /var/volatile tmpfs 128024 0 128024 0% /dev/shm tmpfs 128024 0 128024 0% /media/ram /dev/mmcblk0p2 3605300 72764 3349396 2% /media/mmcblk0p2 root@domain.hid:~# umount /dev/mmcblk0p1 root@domain.hid:~# umount /dev/mmcblk0p2 root@domain.hid:~# root@domain.hid:~# ********* # remove sd card #### *********************** root@domain.hid:~# root@domain.hid:~# cat /proc/interrupts CPU0 7: 32919 INTC TWL4030-PIH 11: 0 INTC prcm 12: 835 INTC DMA 37: 1703 INTC gp timer 56: 99075 INTC i2c_omap 61: 0 INTC i2c_omap 72: 1 INTC serial idle 73: 1 INTC serial idle 74: 252 INTC serial idle, serial 77: 12455 INTC ehci_hcd:usb1 83: 233 INTC mmc0 92: 0 INTC musb_hdrc 93: 0 INTC musb_hdrc 378: 0 twl4030 twl4030_usb 379: 0 twl4030 rtc0 384: 0 twl4030 mmc0 Err: 0 root@domain.hid:~# cat /proc/interrupts CPU0 7: 61279 INTC TWL4030-PIH 11: 0 INTC prcm 12: 835 INTC DMA 37: 1989 INTC gp timer 56: 184159 INTC i2c_omap 61: 0 INTC i2c_omap 72: 1 INTC serial idle 73: 1 INTC serial idle 74: 279 INTC serial idle, serial 77: 12507 INTC ehci_hcd:usb1 83: 233 INTC mmc0 92: 0 INTC musb_hdrc 93: 0 INTC musb_hdrc 378: 0 twl4030 twl4030_usb 379: 0 twl4030 rtc0 384: 0 twl4030 mmc0 Err: 0 root@domain.hid irq 95: 0xffffffdf, please flush posted write for irq 56 Spurious irq 95: 0xffffffdf, please flush posted write for irq 56 Spurious irq 95: 0xffffffdf, please flush posted write for irq 56 Spurious irq 95: 0xffffffdf, please flush posted write for irq 56 Spurious irq 95: 0xffffffdf, please flush posted write for irq 56 Spurious irq 95: 0xffffffdf, please flush posted write for irq 56 Spurious irq 95: 0xffffffdf, please flush posted write for irq 56 ... snipped ... About 1023 spurious irpt msgs occurred. The beginning of the spurious irpt messages was not consistent. They usually started occuring soon, but not immediately after the SD card was removed. As you can see above, I was able to enter a couple commands before the interrupts began. Sometimes the messages occurred before the removal of the SD card. I think that any kind of i2c probed level 2 interrupt triggers the problem. I was fast enough to display /proc/interrupts after I pulled out the SD card (above) and befre the spurrious irpts occurred. The IRQ 384 irpt is not shown in /proc/interrupts and no "removed" message occurred. Without the Adeos patch (or with CONFIG_IPIPE disabled), the removel mesage was immediate. Regards, Bob Feretich On 7/24/2010 11:57 AM, Gilles Chanteperdrix wrote: > Bob Feretich wrote: >> Let me make sure I understand. >> The most recent report from me contained console logs of two boots. >> The first was 2.6.33 with no Adeos patch applied. >> The second was 2.6.33 with the Adeos patch and Xenomai enabled >> (CONFIG_IPIPE=y) and CONFIG_XENOMAI=y). >> >> You want me to perform to tests: >> >> 1. 2.6.33 with the Adeos patch applied, but .config edited to turn >> off CONFIG_IPIPE and CONFIG_XENOMAI. > That is, if when you tested the kernel patched with Adeos you never > turned CONFIG_IPIPE off. > >> 2. Assuming test #1 passes the interrupts successfully, 2.6.33 with >> the Adeos patch applied, CONFIG_IPIPE=y, CONFIG_XENOMAI off, and >> revert the change to drivers/i2c/busses/i2c-omap.c. >> >> Is that correct? > Yep. > > --------------060008020109000509000507 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 8bit Test 1 results:
With the Adeos patch installed, but Adeos disabled, the system ran normally. IRQ 384s were presented and serviced.  (The SD card removal amd insertion was handled correctly.)

Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24)
Reading boot sector
Loading u-boot.bin from mmc


U-Boot 2009.06-rc2 (Nov 02 2009 - 23:57:20)

OMAP3530-GP ES3.0, CPU-OPP2 L3-165MHz
OMAP3 Beagle board + LPDDR/NAND
DRAM:  256 MB
NAND:  256 MiB
In:    serial
Out:   serial
Err:   serial
Board revision C
Die ID #317000030000000004013f8a1701a01b
Hit any key to stop autoboot:  0
OMAP3 beagleboard.org # setenv bootargs 'console=ttyS2,115200n8 ip=192.168.1.81:192.168.1.80:192.168.1.1:255.25
5.255.0:beagleboard:eth0:off root=/dev/nfs rw nfsroot=192.168.1.80:/home/Bob/NFSROOT,nolock,rsize=1024,wsize=10
24 rootwait'
OMAP3 beagleboard.org # boot
mmc1 is available
reading uImage

1902408 bytes read
## Booting kernel from Legacy Image at 80300000 ...
   Image Name:   Angstrom/2.6.33/beagleboard
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1902344 Bytes =  1.8 MB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Linux version 2.6.33 (Bob@domain.hid) (gcc version 4.3.3 (GCC) ) #2 Sat Jul 24 16:32:00 PDT 2010
CPU: ARMv7 Processor [411fc083] revision 3 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine: OMAP3 Beagle Board
Memory policy: ECC disabled, Data cache writeback
OMAP3430/3530 ES3.0 (l2cache iva sgx neon isp )
SRAM: Mapped pa 0x40200000 to va 0xfe400000 size: 0x100000
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 65024
Kernel command line: console=ttyS2,115200n8 ip=192.168.1.81:192.168.1.80:192.168.1.1:255.255.255.0:beagleboard:
eth0:off root=/dev/nfs rw nfsroot=192.168.1.80:/home/Bob/NFSROOT,nolock,rsize=1024,wsize=1024 rootwait
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 128MB 128MB = 256MB total
Memory: 255872KB available (3292K code, 286K data, 120K init, 0K highmem)
Hierarchical RCU implementation.
RCU-based detection of stalled CPUs is enabled.
NR_IRQS:402
Clocking rate (Crystal/Core/MPU): 26.0/332/500 MHz
Reprogramming SDRC clock to 332000000 Hz
GPMC revision 5.0
IRQ: Found an INTC at 0xfa200000 (revision 4.0) with 96 interrupts
Total of 96 interrupts on 1 active controller
OMAP GPIO hardware version 2.5
OMAP clockevent source: GPTIMER1 at 13000000 Hz
Console: colour dummy device 80x30
Calibrating delay loop... 498.07 BogoMIPS (lpj=2490368)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
devtmpfs: initialized
regulator: core version 0.5
NET: Registered protocol family 16
Found NAND on CS0
Registering NAND on CS0
OMAP DMA hardware revision 4.0
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
i2c_omap i2c_omap.1: bus 1 rev3.12 at 2600 kHz
twl4030: PIH (irq 7) chaining IRQs 368..375
twl4030: power (irq 373) chaining IRQs 376..383
twl4030: gpio (irq 368) chaining IRQs 384..401
regulator: VUSB1V5: 1500 mV normal standby
regulator: VUSB1V8: 1800 mV normal standby
regulator: VUSB3V1: 3100 mV normal standby
twl4030_usb twl4030_usb: Initialized TWL4030 USB module
regulator: VMMC1: 1850 <--> 3150 mV at 3000 mV normal standby
regulator: VDAC: 1800 mV normal standby
regulator: VDVI: 1800 mV normal standby
regulator: VSIM: 1800 <--> 3000 mV at 1800 mV normal standby
i2c_omap i2c_omap.3: bus 3 rev3.12 at 100 kHz
Switching to clocksource gp timer
musb_hdrc: version 6.0, musb-dma, otg (peripheral+host), debug=0
musb_hdrc: USB OTG mode controller at fa0ab000 using DMA, IRQ 92
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
JFFS2 version 2.2. (NAND) �© 2001-2006 Red Hat, Inc.
msgmni has been set to 500
alg: No test for stdrng (krng)
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250.0: ttyS0 at MMIO 0x4806a000 (irq = 72) is a ST16654
serial8250.1: ttyS1 at MMIO 0x4806c000 (irq = 73) is a ST16654
serial8250.2: ttyS2 at MMIO 0x49020000 (irq = 74) is a ST16654
console [ttyS2] enabled
brd: module loaded
loop: module loaded
usbcore: registered new interface driver asix
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver net1080
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver zaurus
usbmon: debugfs is not available
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-omap ehci-omap.0: OMAP-EHCI Host Controller
ehci-omap ehci-omap.0: new USB bus registered, assigned bus number 1
ehci-omap ehci-omap.0: irq 77, io mem 0x48064800
ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
twl_rtc twl_rtc: rtc core: registered twl_rtc as rtc0
twl_rtc twl_rtc: Power up reset detected.
twl_rtc twl_rtc: Enabling TWL-RTC.
i2c /dev entries driver
TCP cubic registered
NET: Registered protocol family 17
NET: Registered protocol family 15
Power Management for TI OMAP3.
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1
regulator_init_complete: incomplete constraints, leaving VDVI on
regulator_init_complete: incomplete constraints, leaving VDAC on
twl_rtc twl_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
usb 1-2: new high speed USB device using ehci-omap and address 2
mmc0: new high speed SDHC card at address 1234
mmcblk0: mmc0:1234 SA04G 3.68 GiB
 mmcblk0: p1 p2
eth0: register 'asix' at usb-ehci-omap.0-2, ASIX AX88772 USB 2.0 Ethernet, 00:50:b6:05:d2:0c
eth0: link down
eth0: link up, 100Mbps, half-duplex, lpa 0x40A1
IP-Config: Complete:
     device=eth0, addr=192.168.1.81, mask=255.255.255.0, gw=192.168.1.1,
     host=beagleboard, domain=, nis-domain=(none),
     bootserver=192.168.1.80, rootserver=192.168.1.80, rootpath=
Looking up port of RPC 100003/2 on 192.168.1.80
Looking up port of RPC 100005/1 on 192.168.1.80
VFS: Mounted root (nfs filesystem) on device 0:13.
devtmpfs: mounted
Freeing init memory: 120K
INIT: version 2.86 booting
Please wait: booting...
Starting udev
EXT2-fs (mmcblk0p2): warning: mounting ext3 filesystem as ext2
Remounting root file system...
Caching udev devnodes
Populating dev cache
root: mount: mounting rootfs on / failed: No such file or directory
NOT configuring network interfaces: / is an NFS mount
Tue May 18 20:58:00 UTC 2010
Starting to configure packages...
Nothing to be done
Finished to configure packages.
INIT: Entering runlevel: 5
Starting Dropbear SSH server: dropbear.
Starting syslogd/klogd: done

.-------.                                          
|       |                  .-.                     
|   |   |-----.-----.-----.| |   .----..-----.-----.
|       |     | __  |  ---'| '--.|  .-'|     |     |
|   |   |  |  |     |---  ||  --'|  |  |  '  | | | |
'---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
                -'  |
                '---'

The Angstrom Distribution beagleboard ttyS2

Angstrom 2010.4-test-20100518 beagleboard ttyS2

beagleboard login: root
root@domain.hid:~# /proc/interrupts
-sh: /proc/interrupts: Permission denied
root@domain.hid:~# cat /proc/interrupts
           CPU0
  7:          0        INTC  TWL4030-PIH
 11:          0        INTC  prcm
 12:        198        INTC  DMA
 37:       2267        INTC  gp timer
 56:        318        INTC  i2c_omap
 61:          0        INTC  i2c_omap
 72:          1        INTC  serial idle
 73:          1        INTC  serial idle
 74:        177        INTC  serial idle, serial
 77:      11313        INTC  ehci_hcd:usb1
 83:        126        INTC  mmc0
 92:          0        INTC  musb_hdrc
 93:          0        INTC  musb_hdrc
378:          0     twl4030  twl4030_usb
379:          0     twl4030  rtc0
384:          0     twl4030  mmc0
Err:          0
root@domain.hid:~# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root             15868228   8775884   6931324  56% /
devtmpfs                128088       132    127956   0% /dev
none                    128088       132    127956   0% /dev
/dev/mmcblk0p1          197676      2075    195602   1% /media/mmcblk0p1
/dev/mmcblk0p2         3605300     72764   3349396   2% /media/mmcblk0p2
tmpfs                   128088        16    128072   0% /var/volatile
tmpfs                   128088         0    128088   0% /dev/shm
tmpfs                   128088         0    128088   0% /media/ram
root@domain.hid:~# umount /dev/mmcblk0p1
root@domain.hid:~# umount /dev/mmcblk0p2
root@domain.hid:~# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root             15868228   8775884   6931324  56% /
devtmpfs                128088       132    127956   0% /dev
none                    128088       132    127956   0% /dev
tmpfs                   128088        16    128072   0% /var/volatile
tmpfs                   128088         0    128088   0% /dev/shm
tmpfs                   128088         0    128088   0% /media/ram

***** removed SD card   **************************************************

root@domain.hid:~# mmc0: card 1234 removed
root@domain.hid:~# cat /proc/interrupts
           CPU0
  7:          1        INTC  TWL4030-PIH
 11:          0        INTC  prcm
 12:        537        INTC  DMA
 37:       3789        INTC  gp timer
 56:        338        INTC  i2c_omap
 61:          0        INTC  i2c_omap
 72:          1        INTC  serial idle
 73:          1        INTC  serial idle
 74:        311        INTC  serial idle, serial
 77:      13030        INTC  ehci_hcd:usb1
 83:        192        INTC  mmc0
 92:          0        INTC  musb_hdrc
 93:          0        INTC  musb_hdrc
378:          0     twl4030  twl4030_usb
379:          0     twl4030  rtc0
384:          1     twl4030  mmc0
Err:          0

*************** inserted SD card  ***********************

root@domain.hid:~# mmc0: new high speed SDHC card at address 1234
mmcblk0: mmc0:1234 SA04G 3.68 GiB
 mmcblk0: p1 p2
EXT2-fs (mmcblk0p2): warning: mounting ext3 filesystem as ext2

root@domain.hid:~# cat /proc/interrupts
           CPU0
  7:          2        INTC  TWL4030-PIH
 11:          0        INTC  prcm
 12:        684        INTC  DMA
 37:       4292        INTC  gp timer
 56:        366        INTC  i2c_omap
 61:          0        INTC  i2c_omap
 72:          1        INTC  serial idle
 73:          1        INTC  serial idle
 74:        391        INTC  serial idle, serial
 77:      14060        INTC  ehci_hcd:usb1
 83:        312        INTC  mmc0
 92:          0        INTC  musb_hdrc
 93:          0        INTC  musb_hdrc
378:          0     twl4030  twl4030_usb
379:          0     twl4030  rtc0
384:          2     twl4030  mmc0
Err:          0
root@domain.hid:~# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root             15868228   8775884   6931324  56% /
devtmpfs                128088       132    127956   0% /dev
none                    128088       132    127956   0% /dev
tmpfs                   128088        16    128072   0% /var/volatile
tmpfs                   128088         0    128088   0% /dev/shm
tmpfs                   128088         0    128088   0% /media/ram
/dev/mmcblk0p1          197676      2075    195602   1% /media/mmcblk0p1
/dev/mmcblk0p2         3605300     72764   3349396   2% /media/mmcblk0p2
root@domain.hid:~#

Test 2 results:
With the Adeos patch installed,  Adeos enabled, Xenomai disabled, the spurious irpt patch reverted....
The system ran normally, until an IRQ 384 occurred. Then continuous spurious interrupts occurred.
Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24)
Reading boot sector
Loading u-boot.bin from mmc


U-Boot 2009.06-rc2 (Nov 02 2009 - 23:57:20)

OMAP3530-GP ES3.0, CPU-OPP2 L3-165MHz
OMAP3 Beagle board + LPDDR/NAND
DRAM:  256 MB
NAND:  256 MiB
In:    serial
Out:   serial
Err:   serial
Board revision C
Die ID #317000030000000004013f8a1701a01b
Hit any key to stop autoboot:  0
mmc1 is available
reading uImage

1942588 bytes read
## Booting kernel from Legacy Image at 80300000 ...
   Image Name:   Angstrom/2.6.33/beagleboard
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1942524 Bytes =  1.9 MB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Linux version 2.6.33 (Bob@domain.hid) (gcc version 4.3.3 (GCC) ) #3 Sat Jul 24 19:40:30 PDT 2010
CPU: ARMv7 Processor [411fc083] revision 3 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine: OMAP3 Beagle Board
Memory policy: ECC disabled, Data cache writeback
OMAP3430/3530 ES3.0 (l2cache iva sgx neon isp )
SRAM: Mapped pa 0x40200000 to va 0xfe400000 size: 0x100000
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 65024
Kernel command line: console=ttyS2,115200n8 ip=192.168.1.81:192.168.1.80:192.168.1.1:255.255.255.0:beagleboard:
eth0:off root=/dev/nfs rw nfsroot=192.168.1.80:/home/Bob/NFSROOT,nolock,rsize=1024,wsize=1024 rootwait
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 128MB 128MB = 256MB total
Memory: 255744KB available (3360K code, 341K data, 132K init, 0K highmem)
Hierarchical RCU implementation.
RCU-based detection of stalled CPUs is enabled.
NR_IRQS:402
Clocking rate (Crystal/Core/MPU): 26.0/332/500 MHz
Reprogramming SDRC clock to 332000000 Hz
GPMC revision 5.0
IRQ: Found an INTC at 0xfa200000 (revision 4.0) with 96 interrupts
Total of 96 interrupts on 1 active controller
OMAP GPIO hardware version 2.5
OMAP clockevent source: GPTIMER1 at 13000000 Hz
I-pipe 1.16-01: pipeline enabled.
Console: colour dummy device 80x30
Calibrating delay loop... 498.07 BogoMIPS (lpj=2490368)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
devtmpfs: initialized
regulator: core version 0.5
NET: Registered protocol family 16
Found NAND on CS0
Registering NAND on CS0
OMAP DMA hardware revision 4.0
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
i2c_omap i2c_omap.1: bus 1 rev3.12 at 2600 kHz
twl4030: PIH (irq 7) chaining IRQs 368..375
twl4030: power (irq 373) chaining IRQs 376..383
twl4030: gpio (irq 368) chaining IRQs 384..401
regulator: VUSB1V5: 1500 mV normal standby
regulator: VUSB1V8: 1800 mV normal standby
regulator: VUSB3V1: 3100 mV normal standby
twl4030_usb twl4030_usb: Initialized TWL4030 USB module
regulator: VMMC1: 1850 <--> 3150 mV at 3000 mV normal standby
regulator: VDAC: 1800 mV normal standby
regulator: VDVI: 1800 mV normal standby
regulator: VSIM: 1800 <--> 3000 mV at 1800 mV normal standby
i2c_omap i2c_omap.3: bus 3 rev3.12 at 100 kHz
Switching to clocksource gp timer
musb_hdrc: version 6.0, musb-dma, otg (peripheral+host), debug=0
musb_hdrc: USB OTG mode controller at fa0ab000 using DMA, IRQ 92
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
JFFS2 version 2.2. (NAND) �© 2001-2006 Red Hat, Inc.
msgmni has been set to 499
alg: No test for stdrng (krng)
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
serial8250.0: ttyS0 at MMIO 0x4806a000 (irq = 72) is a ST16654
serial8250.1: ttyS1 at MMIO 0x4806c000 (irq = 73) is a ST16654
serial8250.2: ttyS2 at MMIO 0x49020000 (irq = 74) is a ST16654
console [ttyS2] enabled
brd: module loaded
loop: module loaded
usbcore: registered new interface driver asix
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver net1080
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver zaurus
usbmon: debugfs is not available
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-omap ehci-omap.0: OMAP-EHCI Host Controller
ehci-omap ehci-omap.0: new USB bus registered, assigned bus number 1
ehci-omap ehci-omap.0: irq 77, io mem 0x48064800
ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
twl_rtc twl_rtc: rtc core: registered twl_rtc as rtc0
twl_rtc twl_rtc: Power up reset detected.
twl_rtc twl_rtc: Enabling TWL-RTC.
i2c /dev entries driver
TCP cubic registered
NET: Registered protocol family 17
NET: Registered protocol family 15
Power Management for TI OMAP3.
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1
regulator_init_complete: incomplete constraints, leaving VDVI on
regulator_init_complete: incomplete constraints, leaving VDAC on
twl_rtc twl_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
usb 1-2: new high speed USB device using ehci-omap and address 2
mmc0: new high speed SDHC card at address 1234
mmcblk0: mmc0:1234 SA04G 3.68 GiB
 mmcblk0: p1 p2
eth0: register 'asix' at usb-ehci-omap.0-2, ASIX AX88772 USB 2.0 Ethernet, 00:50:b6:05:d2:0c
eth0: link down
eth0: link up, 100Mbps, half-duplex, lpa 0x40A1
IP-Config: Complete:
     device=eth0, addr=192.168.1.81, mask=255.255.255.0, gw=192.168.1.1,
     host=beagleboard, domain=, nis-domain=(none),
     bootserver=192.168.1.80, rootserver=192.168.1.80, rootpath=
Looking up port of RPC 100003/2 on 192.168.1.80
Looking up port of RPC 100005/1 on 192.168.1.80
VFS: Mounted root (nfs filesystem) on device 0:13.
devtmpfs: mounted
Freeing init memory: 132K
INIT: version 2.86 booting
Please wait: booting...
Starting udev
udev: starting version 151

udevadm settle - timeout of 3 seconds reached, the event queue contains:
  /sys/devices/platform/ehci-omap.0/usb1/1-2/1-2:1.0/net/eth0 (326)
  /sys/devices/platform/mmci-omap-hs.0/mmc_host/mmc0/mmc0:1234/block/mmcblk0 (347)
  /sys/devices/platform/mmci-omap-hs.0/mmc_host/mmc0/mmc0:1234/block/mmcblk0/mmcblk0p1 (348)
  /sys/devices/platform/mmci-omap-hs.0/mmc_host/mmc0/mmc0:1234/block/mmcblk0/mmcblk0p2 (349)
Remounting root file system...
Caching udev devnodes
Populating dev cachemv: cannot rename '/tmp/uname': No such file or directory
EXT2-fs (mmcblk0p2): warning: mounting ext3 filesystem as ext2
root: mount: mounting rootfs on / failed: No such file or directory
NOT configuring network interfaces: / is an NFS mount
Tue May 18 20:58:00 UTC 2010
Starting to configure packages...
Nothing to be done
Finished to configure packages.
INIT: Entering runlevel: 5
Starting Dropbear SSH server: dropbear.
Starting syslogd/klogd: done

.-------.                                          
|       |                  .-.                     
|   |   |-----.-----.-----.| |   .----..-----.-----.
|       |     | __  |  ---'| '--.|  .-'|     |     |
|   |   |  |  |     |---  ||  --'|  |  |  '  | | | |
'---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
                -'  |
                '---'

The Angstrom Distribution beagleboard ttyS2

Angstrom 2010.4-test-20100518 beagleboard ttyS2

beagleboard login: root
root@domain.hid:~# cat /proc/interrupts
           CPU0
  7:          0        INTC  TWL4030-PIH
 11:          0        INTC  prcm
 12:        517        INTC  DMA
 37:       1062        INTC  gp timer
 56:        318        INTC  i2c_omap
 61:          0        INTC  i2c_omap
 72:          1        INTC  serial idle
 73:          1        INTC  serial idle
 74:        117        INTC  serial idle, serial
 77:      12033        INTC  ehci_hcd:usb1
 83:        171        INTC  mmc0
 92:          0        INTC  musb_hdrc
 93:          0        INTC  musb_hdrc
378:          0     twl4030  twl4030_usb
379:          0     twl4030  rtc0
384:          0     twl4030  mmc0
Err:          0
root@domain.hid:~# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root             15868228   8775276   6931932  56% /
devtmpfs                128024       128    127896   0% /dev
none                    128024       128    127896   0% /dev
/dev/mmcblk0p1          197676      2114    195562   1% /media/mmcblk0p1
tmpfs                   128024        16    128008   0% /var/volatile
tmpfs                   128024         0    128024   0% /dev/shm
tmpfs                   128024         0    128024   0% /media/ram
/dev/mmcblk0p2         3605300     72764   3349396   2% /media/mmcblk0p2
root@domain.hid:~# umount /dev/mmcblk0p1
root@domain.hid:~# umount /dev/mmcblk0p2
root@domain.hid:~#
root@domain.hid:~# *********    # remove sd card ####   ***********************
root@domain.hid:~#
root@domain.hid:~# cat /proc/interrupts
           CPU0
  7:      32919        INTC  TWL4030-PIH
 11:          0        INTC  prcm
 12:        835        INTC  DMA
 37:       1703        INTC  gp timer
 56:      99075        INTC  i2c_omap
 61:          0        INTC  i2c_omap
 72:          1        INTC  serial idle
 73:          1        INTC  serial idle
 74:        252        INTC  serial idle, serial
 77:      12455        INTC  ehci_hcd:usb1
 83:        233        INTC  mmc0
 92:          0        INTC  musb_hdrc
 93:          0        INTC  musb_hdrc
378:          0     twl4030  twl4030_usb
379:          0     twl4030  rtc0
384:          0     twl4030  mmc0
Err:          0
root@domain.hid:~# cat /proc/interrupts
           CPU0
  7:      61279        INTC  TWL4030-PIH
 11:          0        INTC  prcm
 12:        835        INTC  DMA
 37:       1989        INTC  gp timer
 56:     184159        INTC  i2c_omap
 61:          0        INTC  i2c_omap
 72:          1        INTC  serial idle
 73:          1        INTC  serial idle
 74:        279        INTC  serial idle, serial
 77:      12507        INTC  ehci_hcd:usb1
 83:        233        INTC  mmc0
 92:          0        INTC  musb_hdrc
 93:          0        INTC  musb_hdrc
378:          0     twl4030  twl4030_usb
379:          0     twl4030  rtc0
384:          0     twl4030  mmc0
Err:          0
root@domain.hid irq 95: 0xffffffdf, please flush posted write for irq 56
Spurious irq 95: 0xffffffdf, please flush posted write for irq 56
Spurious irq 95: 0xffffffdf, please flush posted write for irq 56
Spurious irq 95: 0xffffffdf, please flush posted write for irq 56
Spurious irq 95: 0xffffffdf, please flush posted write for irq 56
Spurious irq 95: 0xffffffdf, please flush posted write for irq 56
Spurious irq 95: 0xffffffdf, please flush posted write for irq 56
... snipped ... About 1023 spurious irpt msgs occurred.

The beginning of the spurious irpt messages was not consistent. They usually started occuring soon, but not immediately after the SD card was removed. As you can see above, I was able to enter a couple commands before the interrupts began. Sometimes the messages occurred before the removal of the SD card. I think that any kind of i2c probed level 2 interrupt triggers the problem.

I was fast enough to display /proc/interrupts after I pulled out the SD card (above) and befre the spurrious irpts occurred. The IRQ 384 irpt is not shown  in /proc/interrupts and no "removed" message occurred. Without the Adeos patch (or with CONFIG_IPIPE disabled), the removel mesage was immediate.

Regards,
Bob Feretich











On 7/24/2010 11:57 AM, Gilles Chanteperdrix wrote: 
Bob Feretich wrote:

  Let me make sure I understand.
The most recent report from me contained console logs of two boots.
The first was 2.6.33 with no Adeos patch applied.
The second was 2.6.33 with the Adeos patch and Xenomai enabled 
(CONFIG_IPIPE=y) and CONFIG_XENOMAI=y).

You want me to perform to tests:

   1. 2.6.33 with the Adeos patch applied, but .config edited to turn
      off CONFIG_IPIPE and CONFIG_XENOMAI.

That is, if when you tested the kernel patched with Adeos you never
turned CONFIG_IPIPE off.


   2. Assuming test #1 passes the interrupts successfully, 2.6.33 with
      the Adeos patch applied, CONFIG_IPIPE=y, CONFIG_XENOMAI off, and
      revert the change to drivers/i2c/busses/i2c-omap.c.

Is that correct?

Yep.
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