[Bug 633227] Re: instabilities with highmem activated
That's a good news! Note however that the mem arguments shall be mem=456M@0x8000 mem=512M@0xA000: the size shall be a multiple of 8MB (unless this constraint would have been reduced by Russel recently?). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
the default arcgs are changed to teh above at the image builder now, new installs should use the full 1G ... can we close this bug now (and leave it for re-opening if it re-occurs) ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Closing for now, please reopen in case the bug still happens. ** Changed in: linux-ti-omap4 (Ubuntu Natty) Status: Confirmed = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
I'm not sure to understand. This bug had nothing to do with the kernel . It was a bug in x-load. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
@gregoire: why do you believe it's a xloader issue? i don't think we have any evidence of this at this point. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Using latest kernel available (2.6.38-1207-omap4) and I'm not able to reproduce this issue anymore. My panda is up for more than 2 days, doing more than 20 kernel builds and still no kernel message and no error. Will let it building more but it seems that I'm finally unable to reproduce this bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
is this kernel in the latest ubuntu natty omap4 build? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
@Eshwar: yes, daily build 20110409 has kernel 2.6.38-1207-omap4. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 633227] Re: instabilities with highmem activated
On Sun, Apr 10, 2011 at 5:40 AM, Eshwar Andhavarapu 633...@bugs.launchpad.net wrote: is this kernel in the latest ubuntu natty omap4 build? Yes, package linux-image-2.6.38-1207-omap4 - 2.6.38-1207.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Building kernel now for more than 3 days, with more than 30 builds and still nor error. I believe we can finally change our boot args to use mem=460M@0x8000 mem=512M@0xA000. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
flag@flag-desktop:~$ cat /proc/cmdline console=ttyO2,115200n8 ro elevator=noop vram=32M mem=460M@0x8000 mem=512M@0xA000 root=UUID=12bb2147-1997-42a8-b7e0-8e44ed0649ef fixrtc flag@flag-desktop:~$ sudo ./devmem2 0x4A002204 /dev/mem opened. Memory mapped at address 0x40119000. Value at address 0x4A002204 (0x40119204): 0x3B95C02F natty/ti-omap4: flag@flag-desktop:~$ uname -a Linux flag-desktop 2.6.38-1207-omap4 #10 SMP PREEMPT Thu Mar 31 18:12:49 CEST 2011 armv7l GNU/Linux -8+ hours of continuous kernel compilation (rootfs on sd, linux source on nfs) with no ill effects -strangely memtester doesn't even start: flag@flag-desktop:~$ sudo memtester -p 0xb000 120 memtester version 4.1.3 (32-bit) Copyright (C) 2010 Charles Cazabon. Licensed under the GNU General Public License version 2 (only). pagesize is 4096 pagesizemask is 0xf000 want 120MB (125829120 bytes) failed to mmap /dev/mem for physical memory: Operation not permitted modifying boot.scr from mem=512M@0xA000 to mem=256M@0xA000 makes memtest work for hours with no problem. on the other hand, with a maverick/ti-omap4 kernel: flag@flag-desktop:~$ uname -a Linux flag-desktop 2.6.35-903-omap4 #22 SMP PREEMPT Thu Mar 31 17:34:59 CEST 2011 armv7l GNU/Linux flag@flag-desktop:~$ sudo memtester -p 0xb000 120 memtester version 4.1.3 (32-bit) Copyright (C) 2010 Charles Cazabon. Licensed under the GNU General Public License version 2 (only). pagesize is 4096 pagesizemask is 0xf000 want 120MB (125829120 bytes) Loop 1: Stuck Address : setting 0 Connection to panda closed. on the serial console: [ 65.264556] Kernel panic - not syncing: Attempted to kill init! [ 65.270751] [80046788] (unwind_backtrace+0x0/0xe4) from [80546ff4] (panic+0x58/0xe4) [ 65.279235] [80546ff4] (panic+0x58/0xe4) from [8007e9d8] (find_new_reaper+0x6c/0x98) [ 65.287719] [8007e9d8] (find_new_reaper+0x6c/0x98) from [80080004] (forget_original_parent+0x28/0x128) [ 65.297821] [80080004] (forget_original_parent+0x28/0x128) from [80080114] (exit_notify+0x10/0x134) [ 65.307617] [80080114] (exit_notify+0x10/0x134) from [800804fc] (do_exit+0x2c4/0x34c) [ 65.316192] [800804fc] (do_exit+0x2c4/0x34c) from [80080614] (do_group_exit+0x90/0xc0) [ 65.324829] [80080614] (do_group_exit+0x90/0xc0) from [8008f524] (get_signal_to_deliver+0x2bc/0x2f4) [ 65.334808] [8008f524] (get_signal_to_deliver+0x2bc/0x2f4) from [80042a3c] (do_signal+0x50/0x1d4) [ 65.344512] [80042a3c] (do_signal+0x50/0x1d4) from [80042bd8] (do_notify_resume+0x18/0x50) [ 65.353546] [80042bd8] (do_notify_resume+0x18/0x50) from [8003faf0] (work_pending+0x1c/0x20) [ 65.362792] CPU0: stopping [ 65.362823] [80046788] (unwind_backtrace+0x0/0xe4) from [800450bc] (ipi_cpu_stop+0x30/0x5c) [ 65.362854] [800450bc] (ipi_cpu_stop+0x30/0x5c) from [8003f268] (do_IPI+0xc0/0x104) [ 65.362884] [8003f268] (do_IPI+0xc0/0x104) from [8054a208] (__irq_svc+0x48/0xe0) [ 65.362884] Exception stack(0xbecd9ea0 to 0xbecd9ee8) [ 65.362884] 9ea0: 0200 80fe4620 0aa3 becd9fb0 8007 bf1ba000 bece1720 [ 65.362915] 9ec0: bf1ba038 2b9eb004 2b9f4978 becd9ee8 800f5070 8054c2ac [ 65.362915] 9ee0: 6013 [ 65.362945] [8054a208] (__irq_svc+0x48/0xe0) from [8054c2ac] (do_page_fault+0x118/0x1c4) [ 65.362945] [8054c2ac] (do_page_fault+0x118/0x1c4) from [8003f350] (do_PrefetchAbort+0x34/0x98) [ 65.362976] [8003f350] (do_PrefetchAbort+0x34/0x98) from [8054a6a0] (ret_from_exception+0x0/0x10) [ 65.362976] Exception stack(0xbecd9fb0 to 0xbecd9ff8) [ 65.362976] 9fa0: 2b9d6000 2b9eb005 00015005 2b9f5f28 [ 65.363006] 9fc0: 2ab3bcd0 0062 7ef1b698 7ef1b828 2ab33de0 004d 2b9f4978 [ 65.363006] 9fe0: 045c 7ef1b690 2ab1f97d 2b9eb004 0030 sometimes it just hangs there (without any panic() message), other it spits out tons of messages about filesystem badness, crashes and later i've to manually fsck -y it, others it just kills memtester and make it impossible to run it again, etcetc. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
@paolo: I don't think the memtester -p test is relevant: when using the -p option with the whole memory address-able by the kernel you can expect some kernel memory corruption (which you did verify actually): Here is the memtester man entry for the -p option: -p PHYSADDR tells memtester to test a specific region of memory starting at physical address PHYSADDR (given in hex), by mmap(2)ing /dev/mem. This is mostly of use to hardware developers, for testing memory-mapped I/O devices and simi‐ lar. Note that the memory region will be overwritten during testing, so it is not safe to specify memory which is allocated for the system or for other applications; doing so will cause them to crash. If you absolutely must test a particular region of actual physical memory, arrange to have that memory allocated by your test software, and hold it in this allocated state, then run memtester on it with this option. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Subscribing Nicolas for commentary. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Anyone who has panda A1 board may try to reproduce the issue. If at least two guys may observe no such issue on A1, we can confirm it is a hardware-dependent issue. Also we can run memory test in uboot or linux(use memtester) to see if any hardware related issue can be found about DDR on EA1. Bryan has one EA1 board, maybe can try it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
FWIW, I tried to reproduce this with CONFIG_HIGHMEM and 460M + 512M, confirmed in /proc/meminfo that there is highmem and set it compiling a kernel repeatedly. After 5 hours it didn't fail. This is with Seb Jan's 2.6.38-rc2 tree. I'll test it further later. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
(#28 above is on an A1 board with ES2.1 silicon) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
I am sorry but could not make it today. Next week I am at emdebian sprint without pandaboard. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Hi Marcin, Suppose you use ubuntu rootfs, usb(ehci-omap) does not work on my pandaboard with the kernel and modules(even with ubuntu 10 and 11 release for omap4), but is OK if I run the same kernel and modules on Angstrom. I guess some Ubuntu applications does some special things which may casue usb exception on my pandaboard. Maybe your issue is related with it. If you'd like to, you may test the kernel and modules on Angstrom rootfs, which can be built with the link below. http://narcissus.angstrom-distribution.org/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Ming: I will take my 8GB sd which has Angstrom on it and will test. Long time ago I was one of Ångström developers. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Ming: which your kernel my pandaboard booted and shutdowned 20s later. Next boots shutdowned during kernel boot. Just like in bug 708883 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
kernel : 2.6.38-rc4 + patch-v2.6.38-rc4-next-20110208.bz2 + fix_timer_lockdep_warning.patch(this attachment file) config : see config.tar.gz of last attachment log.tar.gz ** Patch added: fix_timer_lockdep_warning.patch https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/633227/+attachment/1851607/+files/fix_timer_lockdep_warning.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
kernel and modules binary files: see attachment ** Attachment added: kernel_modules_2.6.38-rc4-next-20110208+.tar.gz https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/633227/+attachment/1851649/+files/kernel_modules_2.6.38-rc4-next-20110208%2B.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
@Bryan is there any chance you can try specifically your SD Card that fails in Ming Lei's new board? There are a lot of possible variables like x-loader, U-Boot and kernel version, even maybe rootfs actions that can be eliminated as the sole cause of the problem if that same card works on his device. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Bryan: I have this problem on EA1, had it also on A1 (which was not mine so cant test anymore). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Seems A1 board is more stable than EA1 version. I had one EA1 pandaboard before, but was destroyed, so I buy another A1 board. Attach the kernel building log(build_log.tar.gz) and the config file(20110214-panda.log.tar.gz) used in building kernel for my A1 pandaboard. From the log, you may see I can succeed in building kernel on Pandaboard for 2 times and no any kernel error has been observed, both highmem and 3G/1G option are enabled In fact, I have tried doing the below also to reproduce the issue by building kernel on Pandaboard A1, but did not succeed in triggering the issue on my board: - building kernel on SD card - use gcc-4.5.1 - use same kernel parameters with Brywu - building kernel after consuming 512M memory by test code wrote by me So does the issue only exist in old EA1 hardware? Maybe we may ask other guys to try reproducing the issue on their A1 board to see if the same result can be got. ** Attachment added: log.tar.gz https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/633227/+attachment/1851164/+files/log.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Ming: can you attach kernel+modules? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
I tried latest 2.6.38-rc4 kernel with Angstrom file system. System is very unstable when I building kernel on it. Sometimes BUG() oops filed, sometimes system froze totally. Please find my log here: http://pastebin.ubuntu.com/566990/ http://pastebin.ubuntu.com/566987/ A friend of mine, Ming Lei who is helping maintaining musb driver of OMAP tried building kernel on his mass production Panda board. He said he never met this unstable issue on that. And He recalled that he might met this issue before on EA Panda board. So Sebastien, do you have latest mass production Panda board for testing? I'm suspecting this issue is hardware related. Thanks, -Bryan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
I did re-test with mainline 2.6.38-rc2 kernel (plus few patches from Linux-Omap tree / omap-testing branch required for booting the pandaboard on top of .38-rc2). I was able to reproduce the issue with highmem activated (after 20 minutes or 2hours of native kernel build). I was not able to reproduce the issue with highmem deactivated and running native kernel builds for more than 60hours. Attached is the kernel config I was using (with highmem deactivated) to boot a Ubuntu file-system with my 2.6.38-rc2+ kernel. ** Attachment added: config.2.6.38-rc2+usb https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/633227/+attachment/1819409/+files/config.2.6.38-rc2%2Busb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
According to http://www.spinics.net/lists/linux-omap/msg44055.html it seem disabling CONFIG_HIGHMEM at least hides this problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Yes, I confirm: I have been runnning kernel native builds for around 40hours without reproducing the issue with CONFIG_HIGHMEM deactivated (this was the only change I did compared to the kernel config provided by Bryan, above in #11. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Post this bug to upstream linux-omap mail list [1]. And tested 2 patches from Santosh, these 2 patches don't fix this issue. Sebjan helped to test the kernel which turn off CONFIG_SMP, still reproduce this issue. [1]: http://www.spinics.net/lists/linux-omap/msg43778.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
** Tags added: omap4 panda -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
I tried build 2.6.37 mainline kernel which was just released with the Ubuntu Natty ti-omap4 kernel config. 2.6.37 kernel boots fine with our Ubuntu Natty minimal root file system. But I can still reproduce this issue. I will post this issue to upstream mail list for more attention. == [0.00] Initializing cgroup subsys cpuset [0.00] Initializing cgroup subsys cpu [0.00] Linux version 2.6.37+ (r...@tangerine) (gcc version 4.4.5 20100824 (prerelease) (Ubuntu/Linaro 4.4.4-9ubuntu2) ) 1 [0.00] CPU: ARMv7 Processor [411fc092] revision 2 (ARMv7), cr=10c53c7f [0.00] CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache [0.00] Machine: OMAP4 Panda board [0.00] Memory policy: ECC disabled, Data cache writealloc [0.00] OMAP4430 ES2.0 [0.00] SRAM: Mapped pa 0x4030 to va 0xfe40 size: 0xe000 [0.00] FIXME: omap44xx_sram_init not implemented [0.00] On node 0 totalpages: 262144 [0.00] free_area_init_node: node 0, pgdat c06f13c0, node_mem_map c0772000 [0.00] Normal zone: 1536 pages used for memmap [0.00] Normal zone: 0 pages reserved [0.00] Normal zone: 195072 pages, LIFO batch:31 [0.00] HighMem zone: 512 pages used for memmap [0.00] HighMem zone: 65024 pages, LIFO batch:15 [0.00] PERCPU: Embedded 7 pages/cpu @c0f7a000 s7104 r8192 d13376 u32768 [0.00] pcpu-alloc: s7104 r8192 d13376 u32768 alloc=8*4096 [0.00] pcpu-alloc: [0] 0 [0] 1 [0.00] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096 [0.00] Kernel command line: console=ttyS2,115200n8 console=ttyO2,115200n8 noinitrd root=/dev/mmcblk0p2 rootdelay=1 ip=dG [0.00] PID hash table entries: 4096 (order: 2, 16384 bytes) [0.00] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) [0.00] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) [0.00] allocated 5242880 bytes of page_cgroup [0.00] please try 'cgroup_disable=memory' option if you don't want memory cgroups [0.00] Memory: 1024MB = 1024MB total [0.00] Memory: 1026756k/1026756k available, 21820k reserved, 262144K highmem [0.00] Virtual kernel memory layout: [0.00] vector : 0x - 0x1000 ( 4 kB) [0.00] fixmap : 0xfff0 - 0xfffe ( 896 kB) [0.00] DMA : 0xffc0 - 0xffe0 ( 2 MB) [0.00] vmalloc : 0xf080 - 0xf800 ( 120 MB) [0.00] lowmem : 0xc000 - 0xf000 ( 768 MB) [0.00] pkmap : 0xbfe0 - 0xc000 ( 2 MB) [0.00] modules : 0xbf00 - 0xbfe0 ( 14 MB) [0.00] .init : 0xc0008000 - 0xc003d000 ( 212 kB) [0.00] .text : 0xc003d000 - 0xc06a9bec (6579 kB) [0.00] .data : 0xc06aa000 - 0xc06f6ec0 ( 308 kB) [0.00] SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [0.00] Preemptable hierarchical RCU implementation. [0.00] RCU-based detection of stalled CPUs is disabled. [0.00] Verbose stalled-CPUs detection is disabled. [0.00] NR_IRQS:402 [0.00] [ cut here ] [0.00] WARNING: at arch/arm/mach-omap2/clockdomain.c:868 omap2_clkdm_deny_idle+0x50/0x80() [0.00] clockdomain: OMAP4 wakeup/sleep dependency support is not yet implemented [0.00] Modules linked in: [0.00] [c0049d50] (unwind_backtrace+0x0/0xe4) from [c0076734] (warn_slowpath_common+0x4c/0x64) [0.00] [c0076734] (warn_slowpath_common+0x4c/0x64) from [c00767cc] (warn_slowpath_fmt+0x2c/0x3c) [0.00] [c00767cc] (warn_slowpath_fmt+0x2c/0x3c) from [c0056f58] (omap2_clkdm_deny_idle+0x50/0x80) [0.00] [c0056f58] (omap2_clkdm_deny_idle+0x50/0x80) from [c00572bc] (clkdm_init+0x8c/0xc0) [0.00] [c00572bc] (clkdm_init+0x8c/0xc0) from [c000f4dc] (omap2_init_common_hw+0x18/0x94) [0.00] [c000f4dc] (omap2_init_common_hw+0x18/0x94) from [c00114b0] (omap4_panda_init_irq+0x10/0x1c) [0.00] [c00114b0] (omap4_panda_init_irq+0x10/0x1c) from [c000bbd0] (init_IRQ+0x10/0x18) [0.00] [c000bbd0] (init_IRQ+0x10/0x18) from [c0008d24] (start_kernel+0x120/0x2a0) [0.00] [c0008d24] (start_kernel+0x120/0x2a0) from [80008038] (0x80008038) [0.00] ---[ end trace da227214a82491b7 ]--- [0.00] omap_hwmod: dpll_mpu_m2_ck: missing clockdomain for dpll_mpu_m2_ck. [0.00] GPMC revision 6.0 [0.00] OMAP GPIO hardware version 0.1 [0.00] OMAP clockevent source: GPTIMER1 at 32768 Hz [0.00] Console: colour dummy device 80x30 [0.00] Calibrating delay loop... 2009.29 BogoMIPS (lpj=7847936) [0.00] pid_max: default: 32768 minimum: 301 [0.00] Security Framework initialized [0.00] AppArmor: AppArmor initialized [0.00] Mount-cache hash
[Bug 633227] Re: instabilities with highmem activated
This config file is based on Ubuntu Natty TI OMAP4 config file ** Attachment added: mainline_config https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/633227/+attachment/1791242/+files/mainline_config -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
I built the latest 2.6.37 based Linaro kernel for omap4 panda, which is disabled HIGHMEM. But I still can see this bug when I was building the kernel natively on the omap4 board. Since Linaro kernel is very close to upstream mainline, I believe mainline kernel also has this issue. -Bryan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
** Changed in: linux-ti-omap4 (Ubuntu Natty) Assignee: (unassigned) = Canonical ARM Developers (canonical-arm-dev) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/633227 Title: instabilities with highmem activated -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
we still cant use the full 1G, while the patch improves it and 768M are now usable with special bootoptions, i will reopen so we can track the issue until it is completely fixed. (the bootoptions we use in the current images: mem=4...@0x8000 mem=2...@0xa000) ** Changed in: linux-ti-omap4 (Ubuntu) Status: Fix Released = Confirmed ** Changed in: linux-ti-omap4 (Ubuntu) Milestone: ubuntu-10.10 = ubuntu-11.04 -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
** Also affects: linux-ti-omap4 (Ubuntu Natty) Importance: High Status: Confirmed -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
This bug was fixed in the package linux-ti-omap4 - 2.6.35-903.13 --- linux-ti-omap4 (2.6.35-903.13) maverick; urgency=low [ Bryan Wu ] * SAUCE: Fix a buidling error when turn off CONFIG_SMP - LP: #647890 * [Config] Enable CONFIG_VMSPLIT_2G=y for OMAP4 - LP: #633227 [ Ricardo Salveti de Araujo ] * [Config] OMAP: Enable needed Errata for OMAP4 to work with DMA based device drivers [ Upstream Kernel Changes ] * ARM: do not define VMALLOC_END relative to PAGE_OFFSET -- Tim Gardner tim.gard...@canonical.com Thu, 30 Sep 2010 17:04:40 +0100 ** Changed in: linux-ti-omap4 (Ubuntu Maverick) Status: New = Fix Released -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
With kernel Ubuntu-2.6.35-903.13 we have a workaround to use 1GB and avoid using highmem. While the highmem issue is not fixed, at least this can be the way to go for Maverick. -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
** Also affects: linux-ti-omap4 (Ubuntu Maverick) Importance: Undecided Status: New ** Changed in: linux-ti-omap4 (Ubuntu Maverick) Milestone: None = ubuntu-10.10 ** Changed in: linux-ti-omap4 (Ubuntu Maverick) Importance: Undecided = High -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
After some discussion with Nicolas Pitre, I did following testing:
1. Just build kernel in MMC SD card.
The same result, It fails as our reported.
2. Add mem=512M vmalloc=1G to kernel boot command line,
Kernel doesn't boot on my board at all
3. Set CONFIG_VMSPLIT_2G=y
Building kernel can run longer, but eventually it fails due to the same error
4. Add flush_cache_all() at the begin of dma_cache_maint_page() function
---
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 592f05d..f7f083a 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -448,6 +448,9 @@ static void dma_cache_maint_page(struct page *page,
unsigned long offset,
* optimized out.
*/
size_t left = size;
+
+ flush_cache_all();
+
do {
size_t len = left;
void *vaddr;
---
It's similar to test 3. Building kernel can run longer, but eventually
it fails due to the same error
Error message:
---
CC [M] net/ipv4/netfilter/nf_nat_standalone.o
/tmp/ccUqqYy4.s: Assembler messages:
/tmp/ccUqqYy4.s:59470: Error: can't resolve value for symbol `.LASF2946'
make[5]: *** [drivers/staging/pohmelfs/net.o] Error 1
make[4]: *** [drivers/staging/pohmelfs] Error 2
make[3]: *** [drivers/staging] Error 2
make[2]: *** [drivers] Error 2
make[2]: *** Waiting for unfinished jobs
CC [M] net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.o
CC [M] net/ipv4/netfilter/nf_conntrack_proto_icmp.o
CC [M] net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.o
CC [M] net/ipv4/netfilter/nf_nat_core.o
CC [M] net/ipv4/netfilter/nf_nat_helper.o
CC [M] net/ipv4/netfilter/nf_nat_proto_unknown.o
CC [M] net/ipv4/netfilter/nf_nat_proto_common.o
CC [M] net/ipv4/netfilter/nf_nat_proto_tcp.o
CC [M] net/ipv4/netfilter/nf_nat_proto_udp.o
CC [M] net/ipv4/netfilter/nf_nat_proto_icmp.o
CC [M] net/ipv6/ah6.o
CC [M] net/ipv4/netfilter/nf_defrag_ipv4.o
CC [M] net/ipv6/esp6.o
CC [M] net/ipv4/netfilter/nf_nat_amanda.o
CC [M] net/ipv4/netfilter/nf_nat_ftp.o
CC [M] net/ipv6/ipcomp6.o
CC [M] net/ipv4/netfilter/nf_nat_h323.o
CC [M] net/ipv6/xfrm6_tunnel.o
[ 5364.381378] Unhandled fault: imprecise external abort (0x1406) at 0x42a3e000
In file included from /home/ubuntu/ubuntu-maverick/net/ipv6/xfrm6_tunnel.c:29:
/home/ubuntu/ubuntu-maverick/include/net/xfrm.h:550: internal compiler error:
Bus error
Please submit a full bug report,
with preprocessed source if appropriate.
See file:///usr/share/doc/gcc-4.4/README.Bugs for instructions.
make[4]: *** [net/ipv6/xfrm6_tunnel.o] Error 1
make[3]: *** [net/ipv6] Error 2
make[3]: *** Waiting for unfinished jobs
CC [M] net/ipv4/netfilter/nf_nat_irc.o
CC [M] net/ipv4/netfilter/nf_nat_pptp.o
Thanks a lot,
-Bryan
--
instabilities with highmem activated
https://bugs.launchpad.net/bugs/633227
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[Bug 633227] Re: instabilities with highmem activated
I reproduced this issue on my omap4 board, --- [ 1446.044982] Unhandled fault: imprecise external abort (0x1c06) at 0x00518a0c [ 1446.052429] Internal error: : 1c06 [#1] PREEMPT SMP [ 1446.057556] last sysfs file: /sys/kernel/uevent_seqnum [ 1446.062957] Modules linked in: twl4030_pwrbutton [ 1446.067810] CPU: 0Not tainted (2.6.35-903-omap4 #11+bounce) [ 1446.074127] PC is at __dabt_usr+0x2c/0x40 [ 1446.078338] LR is at 0x334a6c [ 1446.081420] pc : [c0544eac]lr : [00334a6c]psr: 4093 [ 1446.081451] sp : ef2bdfb0 ip : 000c fp : 00710bb4 [ 1446.093414] r10: bea272dc r9 : bea272a8 r8 : 41b2d4e0 [ 1446.098876] r7 : 0001 r6 : r5 : 0028 r4 : [ 1446.105712] r3 : 4030 r2 : 00057e14 r1 : bea272dc r0 : 10c53c7d [ 1446.112518] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 1446.120056] Control: 10c53c7d Table: af3e404a DAC: 0015 [ 1446.126037] Process cc1 (pid: 8806, stack limit = 0xef2bc2f8) [ 1446.132049] Stack: (0xef2bdfb0 to 0xef2be000) [ 1446.136596] dfa0: bea272dc 0001 0002 01279f40 [ 1446.145141] dfc0: bea272dc 0028 0001 41b2d4e0 bea272a8 bea272dc 00710bb4 [ 1446.153686] dfe0: 000c bea27158 00466209 00057e14 4030 [ 1446.162231] Code: e9406000 e51f0048 e590 ee010f10 (ebec154b) As discussed with Ricardo, we plan to try upstream mainline kernel on our ES2.0 for this issue. -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Upstream thread about this issue: http://lkml.org/lkml/2010/9/8/425 Brian is currently testing it to see if it actually fixes our problem. Will also test it later on. -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
Patch tested: 1) I was not able to reproduce the memtester problem with it. So we shall take this patch. 2) But the bus error when building the kernel package are still here. So there is still another issue pending. -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 633227] Re: instabilities with highmem activated
With the patch the kernel seems to be better, but still have mem issues. This happened when trying to run memtester while compiling the kernel: ubu...@panda-maverick-usb:~$ sudo memtester -p 0xb000 120 memtester version 4.1.3 (32-bit) Copyright (C) 2010 Charles Cazabon. Licensed under the GNU General Public License version 2 (only). pagesize is 4096 pagesizemask is 0xf000 want 120MB (125829120 bytes) Loop 1: Stuck Address : setting 0Connection to panda-maverick-usb.local closed. - Disconnected from my ssh connection Kernel Build: /home/ubuntu/kernel/ubuntu-maverick/kernel/wait.c: In function ‘remove_wait_queue’: /home/ubuntu/kernel/ubuntu-maverick/kernel/wait.c:289: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See file:///usr/share/doc/gcc-4.4/README.Bugs for instructions. make[3]: *** [kernel/wait.o] Error 1 make[2]: *** [kernel] Error 2 make[2]: *** Waiting for unfinished jobs /home/ubuntu/kernel/ubuntu-maverick/mm/vmalloc.c: In function ‘T.534’: /home/ubuntu/kernel/ubuntu-maverick/mm/vmalloc.c:902: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See file:///usr/share/doc/gcc-4.4/README.Bugs for instructions. CC mm/pagewalk.o gcc: Internal error: Segmentation fault (program cc1) Please submit a full bug report. See file:///usr/share/doc/gcc-4.4/README.Bugs for instructions. make[3]: *** [mm/vmalloc.o] Segmentation fault make[3]: *** Waiting for unfinished jobs gcc: Internal error: Segmentation fault (program cc1) Please submit a full bug report. See file:///usr/share/doc/gcc-4.4/README.Bugs for instructions. make[3]: *** [mm/pagewalk.o] Segmentation fault make[2]: *** [mm] Error 2 make[1]: *** [sub-make] Error 2 make[1]: Leaving directory `/home/ubuntu/kernel/ubuntu-maverick' make: *** [/home/ubuntu/kernel/ubuntu-maverick/debian/stamps/stamp-build-omap4] Error 2 Then the went into a very unstable state (failing next memtest run). -- instabilities with highmem activated https://bugs.launchpad.net/bugs/633227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
