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gtbX
Tux's lil' helper
Tux's lil' helper


Joined: 11 Oct 2003
Posts: 114

PostPosted: Sun Sep 13, 2020 11:00 pm    Post subject: Crash when attempting to emerge anything on ARM Reply with quote

I've been working on installing Gentoo onto a DLink DIR-685, which is a fancy (but old) wifi router. Why? because.
It actually has a little 2" framebuffer display, USB and SATA, so with a HD and keyboard I can get a tiny barely readable console on it. For kernel config I've been using this site as a guide, but it's more focused on OpenWRT.

The first major obstacle is that I've had to build my own stage3 for it since it uses an ARMv4 (non-thumb) CPU, which GCC appeared to drop support for in version 8 and newer. I ended up using the Gentoo Embedded handbook, specifically the section on setting up a Qemu-user environment to build it. I copied the environment over to a hard drive, popped it into the router, and most stuff I expect to work does. My main problem seems to be running emerge (or ebuild) directly on the device. Whenever it gets to actually building a package, I get a crash dump similar to this:

Code:

Exception in callback AsynchronousTask._exit_listener_cb(<bound method...t 0xb5784210>>)
handle: <Handle AsynchronousTask._exit_listener_cb(<bound method...t 0xb5784210>>)>
Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/portage/process.py", line 760, in __call__
    return self._results[flags]
KeyError: 1275068416

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.7/asyncio/events.py", line 88, in _run
    self._context.run(self._callback, *self._args)
  File "/usr/lib/python3.7/site-packages/_emerge/AsynchronousTask.py", line 201, in _exit_listener_cb
    listener(self)
  File "/usr/lib/python3.7/site-packages/_emerge/EbuildPhase.py", line 158, in _async_start_exit
    self._start_lock()
  File "/usr/lib/python3.7/site-packages/_emerge/EbuildPhase.py", line 178, in _start_lock
    self._start_ebuild()
  File "/usr/lib/python3.7/site-packages/_emerge/EbuildPhase.py", line 221, in _start_ebuild
    self._start_task(ebuild_process, self._ebuild_exit)
  File "/usr/lib/python3.7/site-packages/_emerge/CompositeTask.py", line 113, in _start_task
    task.start()
  File "/usr/lib/python3.7/site-packages/_emerge/AsynchronousTask.py", line 30, in start
    self._start()
  File "/usr/lib/python3.7/site-packages/_emerge/AbstractEbuildProcess.py", line 169, in _start
    self._start_post_builddir_lock(start_ipc_daemon=start_ipc_daemon)
  File "/usr/lib/python3.7/site-packages/_emerge/AbstractEbuildProcess.py", line 200, in _start_post_builddir_lock
    SpawnProcess._start(self)
  File "/usr/lib/python3.7/site-packages/_emerge/SpawnProcess.py", line 110, in _start
    retval = self._spawn(self.args, **kwargs)
  File "/usr/lib/python3.7/site-packages/_emerge/EbuildProcess.py", line 25, in _spawn
    actionmap=actionmap, **kwargs)
  File "/usr/lib/python3.7/site-packages/portage/package/ebuild/doebuild.py", line 178, in _doebuild_spawn
    return spawn(cmd, settings, **kwargs)
  File "/usr/lib/python3.7/site-packages/portage/package/ebuild/doebuild.py", line 1662, in spawn
    **keywords)
  File "/usr/lib/python3.7/site-packages/portage/process.py", line 145, in spawn_bash
    return spawn(args, opt_name=opt_name, **keywords)
  File "/usr/lib/python3.7/site-packages/portage/process.py", line 360, in spawn
    _unshare_validate(unshare_flags)
  File "/usr/lib/python3.7/site-packages/portage/process.py", line 762, in __call__
    result = self._results[flags] = self._validate(flags)
  File "/usr/lib/python3.7/site-packages/portage/process.py", line 791, in _validate
    result = parent_pipe.recv()
  File "/usr/lib/python3.7/multiprocessing/connection.py", line 250, in recv
    buf = self._recv_bytes()
  File "/usr/lib/python3.7/multiprocessing/connection.py", line 407, in _recv_bytes
    buf = self._recv(4)
  File "/usr/lib/python3.7/multiprocessing/connection.py", line 383, in _recv
    raise EOFError
EOFError
Terminated


If I mount the drive on my amd64 system and run it under qemu, emerge works correctly. There must be some compatibility issue with this CPU, but I don't know where to look to see if I can fix it.

emerge --info
Code:

Portage 3.0.4 (python 3.7.8-final-0, default/linux/arm/17.0/armv4, gcc-7.5.0, glibc-2.31-r6, 5.8.6-gentoo armv4l)
=================================================================
System uname: Linux-5.8.6-gentoo-armv4l-FA526_rev_1_-v4l-with-gentoo-2.7
KiB Mem:      120288 total,     32672 free
KiB Swap:          0 total,         0 free
Timestamp of repository gentoo: Fri, 04 Sep 2020 23:00:01 +0000
Head commit of repository gentoo: 53eecce6afbd9931ead5da9c3dfc9147e0a320cc
sh bash 5.0_p18
ld GNU ld (Gentoo 2.33.1 p2) 2.33.1
app-shells/bash:          5.0_p18::gentoo
dev-lang/perl:            5.30.3::gentoo
dev-lang/python:          2.7.18-r2::gentoo, 3.7.8-r2::gentoo, 3.8.5::gentoo
sys-apps/baselayout:      2.7::gentoo
sys-apps/openrc:          0.42.1::gentoo
sys-apps/sandbox:         2.18::gentoo
sys-devel/binutils:       2.33.1-r1::gentoo
sys-devel/gcc:            7.5.0-r1::gentoo
sys-devel/gcc-config:     2.3.1::gentoo
sys-devel/make:           4.2.1-r4::gentoo
sys-kernel/linux-headers: 5.4-r1::gentoo (virtual/os-headers)
sys-libs/glibc:           2.31-r6::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: rsync
    sync-uri: rsync://materia/gentoo-portage
    priority: -1000
    sync-rsync-verify-jobs: 1
    sync-rsync-verify-metamanifest: yes
    sync-rsync-verify-max-age: 24
    sync-rsync-extra-opts:

ACCEPT_KEYWORDS="arm"
ACCEPT_LICENSE="@FREE"
CBUILD="armv4l-softfloat-linux-gnueabi"
CFLAGS="-O2 -pipe -march=armv4"
CHOST="armv4l-softfloat-linux-gnueabi"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe -march=armv4"
DISTDIR="/var/cache/distfiles"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR"
FCFLAGS="-O2 -pipe -march=armv4"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs buildpkg config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch preserve-libs protect-owned qa-unresolved-soname-deps sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersync xattr"
FFLAGS="-O2 -pipe -march=armv4"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
PKGDIR="/var/db/repos/gentoo/packages/armv4l"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git"
PORTAGE_TMPDIR="/var/tmp"
USE="acl alsa arm berkdb bzip2 cli crypt dri egl fbdev fortran gdbm iconv ipv6 libglvnd ncurses nls nptl pam pcre readline seccomp split-usr ssl tcpd unicode xattr zlib" ADA_TARGET="gnat_2018" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-2 php7-3 php7-4" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_7" PYTHON_TARGETS="python2_7 python3_7" RUBY_TARGETS="ruby25" USERLAND="GNU" VIDEO_CARDS="exynos fbdev omap dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LINGUAS, MAKEOPTS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 46069
Location: 56N 3W

PostPosted: Sun Sep 13, 2020 11:53 pm    Post subject: Reply with quote

gtbX,

After emerge or ebuild has failed, what do you have in dmesg?

Can you put the whole thing onto a pastebin site please?
wgetpaste can help.

I don't need it all ... but armv4. I'm curious :)
With only 120Mb RAM, its going to be a squeeze to build anything there and I expect to see the Out Of Memory (OOM) manager in action in dmesg.
You won't miss it if its there.

The content of /proc/cpuinfo would be good see too.
_________________
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NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
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gtbX
Tux's lil' helper
Tux's lil' helper


Joined: 11 Oct 2003
Posts: 114

PostPosted: Mon Sep 14, 2020 2:32 am    Post subject: Reply with quote

dmesg

There's some messages in there about the display and USB hardware, but it doesn't look like the OOM killer was activated. The last line is when I enabled some swap space to see if that might resolve it (it didn't).

I was planning on compiling most packages on a larger machine and copying binpkgs over. I was able to successfully build python manually, when I first ran `ebuild ... prepare` inside qemu. I'm not sure how to manually install it without using ebuild though, and I don't really expect that building python on the device will have a different result. I just can't think of anything else.


Code:

# cat /proc/cpuinfo
processor       : 0
model name      : FA526 rev 1 (v4l)
BogoMIPS        : 50.00
Features        : swp half
CPU implementer : 0x66
CPU architecture: 4
CPU variant     : 0x0
CPU part        : 0x526
CPU revision    : 1

Hardware        : Gemini (Device Tree)
Revision        : 0000
Serial          : 0000000000000000
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 46069
Location: 56N 3W

PostPosted: Mon Sep 14, 2020 10:56 am    Post subject: Reply with quote

gtbX,

Your paste has gone :(

Installing binaries without using emerge is possible.
You have done it at least once already.

The down side is that single package tar will not maintain /var/db/pkg/ which is how portage tracks everything you have installed.
Hence the rescue use of fix it and rebuild..

emerge --info clearly works, that uses Python. so which ebuild phase function fails?
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
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gtbX
Tux's lil' helper
Tux's lil' helper


Joined: 11 Oct 2003
Posts: 114

PostPosted: Mon Sep 14, 2020 12:28 pm    Post subject: Reply with quote

Never used a pastebin before. I guess big pastes might expire faster than 7 days? Try again?
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gtbX
Tux's lil' helper
Tux's lil' helper


Joined: 11 Oct 2003
Posts: 114

PostPosted: Mon Sep 14, 2020 12:43 pm    Post subject: Reply with quote

It doesn't look like any of the ebuild phases work. In order to compile python, I ran up to `ebuild ... configure` in qemu then manually executed `make && touch .compiled` on the device. I've switched back to qemu to complete the install, but I don't think this will affect anything.
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NeddySeagoon
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PostPosted: Fri Sep 18, 2020 9:15 pm    Post subject: Reply with quote

gtbX,

Code:
[    7.656687] uhci_hcd: USB Universal Host Controller Interface driver
[    7.692976] fotg210_hcd: FOTG210 Host Controller (EHCI) Driver
[    7.720214] Warning! fotg210_hcd should always be loaded before uhci_hcd and ohci_hcd, not after


The kernel driver for the display is not happy.
Code:
[   12.287261] ------------[ cut here ]------------
[   12.287343] WARNING: CPU: 0 PID: 14 at drivers/gpu/drm/drm_atomic_helper.c:1496 drm_atomic_helper_wait_for_vblanks.part.1+0x26c/0x280
[   12.287365] [CRTC:32:crtc-0] vblank wait timed out
[   12.287375] Modules linked in:
[   12.287418] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 5.8.6-gentoo #3
[   12.287435] Hardware name: Gemini (Device Tree)
[   12.287565] Workqueue: events deferred_probe_work_func
[   12.287658] [<c0011834>] (unwind_backtrace) from [<c000d730>] (show_stack+0x10/0x14)
[   12.287726] [<c000d730>] (show_stack) from [<c001a5f0>] (__warn+0xa8/0xcc)
[   12.287789] [<c001a5f0>] (__warn) from [<c001a680>] (warn_slowpath_fmt+0x6c/0xb8)
[   12.287860] [<c001a680>] (warn_slowpath_fmt) from [<c03a6c60>] (drm_atomic_helper_wait_for_vblanks.part.1+0x26c/0x280)
[   12.287921] [<c03a6c60>] (drm_atomic_helper_wait_for_vblanks.part.1) from [<c03a8d48>] (drm_atomic_helper_commit_tail+0x58/0x68)
[   12.287975] [<c03a8d48>] (drm_atomic_helper_commit_tail) from [<c03a93d0>] (commit_tail+0x188/0x1a0)
[   12.288028] [<c03a93d0>] (commit_tail) from [<c03aa09c>] (drm_atomic_helper_commit+0x12c/0x158)
[   12.288105] [<c03aa09c>] (drm_atomic_helper_commit) from [<c03d8e70>] (drm_client_modeset_commit_atomic+0x164/0x208)
[   12.288174] [<c03d8e70>] (drm_client_modeset_commit_atomic) from [<c03d8f54>] (drm_client_modeset_commit_locked+0x40/0x180)
[   12.288242] [<c03d8f54>] (drm_client_modeset_commit_locked) from [<c03d90b8>] (drm_client_modeset_commit+0x24/0x40)
[   12.288306] [<c03d90b8>] (drm_client_modeset_commit) from [<c03aeb48>] (__drm_fb_helper_restore_fbdev_mode_unlocked+0x5c/0xc4)
[   12.288357] [<c03aeb48>] (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<c03aec18>] (drm_fb_helper_set_par+0x38/0x68)
[   12.288406] [<c03aec18>] (drm_fb_helper_set_par) from [<c0342334>] (fbcon_init+0x2c8/0x610)
[   12.288468] [<c0342334>] (fbcon_init) from [<c037fd38>] (visual_init+0xb0/0xf8)
[   12.288524] [<c037fd38>] (visual_init) from [<c0381310>] (do_bind_con_driver+0x1fc/0x408)
[   12.288570] [<c0381310>] (do_bind_con_driver) from [<c03817dc>] (do_take_over_console+0x80/0x1ec)
[   12.288617] [<c03817dc>] (do_take_over_console) from [<c0340818>] (do_fbcon_takeover+0x60/0xc0)
[   12.288683] [<c0340818>] (do_fbcon_takeover) from [<c033a988>] (register_framebuffer+0x1cc/0x2c4)
[   12.288746] [<c033a988>] (register_framebuffer) from [<c03ae644>] (__drm_fb_helper_initial_config_and_unlock+0x388/0x54c)
[   12.288798] [<c03ae644>] (__drm_fb_helper_initial_config_and_unlock) from [<c03aee8c>] (drm_fbdev_client_hotplug+0x138/0x204)
[   12.288846] [<c03aee8c>] (drm_fbdev_client_hotplug) from [<c03aefe0>] (drm_fbdev_generic_setup+0x88/0x19c)
[   12.288901] [<c03aefe0>] (drm_fbdev_generic_setup) from [<c03e14b0>] (tve200_probe+0x310/0x3cc)
[   12.288965] [<c03e14b0>] (tve200_probe) from [<c03ec058>] (platform_drv_probe+0x4c/0x9c)
[   12.289018] [<c03ec058>] (platform_drv_probe) from [<c03ea52c>] (really_probe+0x224/0x35c)
[   12.289066] [<c03ea52c>] (really_probe) from [<c03ea768>] (driver_probe_device+0x54/0xac)
[   12.289114] [<c03ea768>] (driver_probe_device) from [<c03e87d0>] (bus_for_each_drv+0x58/0xbc)
[   12.289161] [<c03e87d0>] (bus_for_each_drv) from [<c03ea28c>] (__device_attach+0xd4/0x148)
[   12.289207] [<c03ea28c>] (__device_attach) from [<c03e963c>] (bus_probe_device+0x88/0x90)
[   12.289255] [<c03e963c>] (bus_probe_device) from [<c03e9acc>] (deferred_probe_work_func+0x60/0x8c)
[   12.289317] [<c03e9acc>] (deferred_probe_work_func) from [<c0031f9c>] (process_one_work+0x1fc/0x480)
[   12.289376] [<c0031f9c>] (process_one_work) from [<c00324bc>] (worker_thread+0x29c/0x604)
[   12.289434] [<c00324bc>] (worker_thread) from [<c00380b8>] (kthread+0x144/0x16c)
[   12.289485] [<c00380b8>] (kthread) from [<c0008340>] (ret_from_fork+0x14/0x34)
[   12.289529] Exception stack(0xc7991fb0 to 0xc7991ff8)
[   12.289623] 1fa0:                                     00000000 00000000 00000000 00000000
[   12.289774] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   12.289897] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[   12.289946] ---[ end trace e6cdffd937d0ff68 ]---


It may be because the system is too busy to drive the display properly at startup.

Code:
[  112.918429] ipw2200 0000:00:0c.0: Direct firmware load for ipw2200-bss.fw failed with error -2
[  112.918745] ipw2200: ipw2200-bss.fw request_firmware failed: Reason -2
[  112.918770] ipw2200: Unable to load firmware: -2
[  113.073044] ipw2200: probe of 0000:00:0c.0 failed with error -5
you are missing the firmware for your wifi.
Its in linux-firmware but its huge and you only want a few files.
After its installed, you can configure it to only install the files you want in future.

Nothing about portage though.

I was bitten by something like this and i notice that portage-3.0.4 has been replaced by portage-3.0.4-r1.
That may mean that portage-3.0.4 had a bug. Its worth trying a different portage version.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
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