[Bug 1591868] Re: fwupd consuming 100% CPU

[Kasun Siyambalapitiya]

Hi Sul aga, as Mario suggested I have created a new bug
[https://bugs.launchpad.net/ubuntu/+source/appstream-glib/+bug/1707110]
please mark it affects to you too.

Thank you

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[Bug 1591868] Re: fwupd consuming 100% CPU

[sul aga]

can someone please explain what is the solution. I am having the same
issue. I have followed these commands as suggested by "Rémy Montangé"
then restarted my system but after restarting the same thing is
happening again fwupd is using 100% of my cpu

killall gnome-software
sudo killall fwupd

sudo apt-get update
sudo apt-get dist-upgrade

sudo apt-get autoremove gnome-software
sudo apt-get install gnome-software

thank you

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Re: [Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

The existing bug is fixed. Please file a new bug.

On Wed, Jul 26, 2017, 22:59 Kasun Siyambalapitiya <
kasun.siyambalapit...@gmail.com> wrote:

> Even though the bug is marked as fixed, I am still having the issue
> though the os (Ubuntu 16.04)is up to date
>
> ** Attachment added: "fwupd is consuming 100%"
>
> https://bugs.launchpad.net/ubuntu/+source/appstream-glib/+bug/1591868/+attachment/4922155/+files/fwupd.png
>
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> Title:
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>
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[Bug 1591868] Re: fwupd consuming 100% CPU

[Kasun Siyambalapitiya]

Even though the bug is marked as fixed, I am still having the issue
though the os (Ubuntu 16.04)is up to date

** Attachment added: "fwupd is consuming 100%"
   
https://bugs.launchpad.net/ubuntu/+source/appstream-glib/+bug/1591868/+attachment/4922155/+files/fwupd.png

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Rémy Montangé]

To correct the issue :

killall gnome-software
sudo killall fwupd

sudo apt-get update
sudo apt-get dist-upgrade

sudo apt-get autoremove gnome-software
sudo apt-get install gnome-software

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Jørgen Dokken]

I had this similar problem until I uninstalled gnome-software, I have no
idea why that did the trick.

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

If you're experiencing this bug with a fully updated system, please
report a new bug report.  In the new bug report please include these
details:

https://bugs.launchpad.net/ubuntu/+source/appstream-
glib/+bug/1591868/comments/4

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Jairo Andres Moreno]

Hi all,
I updated too my files. But, I'm still experiencing high CPU consumption by 
fwupd and gnome-software.

Package: libappstream-glib8
Version: 0.5.13-1ubuntu4
Priority: optional
Section: libs
Source: appstream-glib
Origin: Ubuntu
Maintainer: Ubuntu Developers 
Original-Maintainer: Matthias Klumpp 
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 312 kB
Depends: libarchive13, libc6 (>= 2.14), libgcab-1.0-0 (>= 0.4), 
libgdk-pixbuf2.0-0 (>= 2.25.2), libglib2.0-0 (>= 2.46), libsoup2.4-1 (>= 2.52), 
libuuid1 (>= 2.16), libyaml-0-2
Homepage: http://people.freedesktop.org/~hughsient/appstream-glib/
Task: ubuntu-desktop, ubuntu-usb, kubuntu-desktop, edubuntu-desktop, 
edubuntu-usb, xubuntu-core, xubuntu-desktop, mythbuntu-desktop, lubuntu-core, 
ubuntustudio-desktop-core, ubuntustudio-desktop, ubuntu-gnome-desktop, 
ubuntukylin-desktop, ubuntu-mate-core, ubuntu-mate-desktop, ubuntu-mate-cloudtop
Supported: 5y
Download-Size: 101 kB
APT-Manual-Installed: no
APT-Sources: http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
Description: GNOME library to access AppStream services
 AppStream is a cross-distribution effort for creating and sharing
 metadata about software components available in the package repositories
 of a distribution.
 .
 This package contains a GObject-based library to read and write AppStream
 XML metadata and retrieve additional data such as screenshots.
 .
 As opposed to libappstream, this library does not use an on-disk cache but
 reads data directly from the XML or DEP-11 YAML files.

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Marcelo Fernandez]

Hi, I'm fully updated and still having this issue. Do you know what
could be wrong?

Thankyou

marcelo@marcelo-notebook:~$ apt show libappstream-glib8
Package: libappstream-glib8
Version: 0.5.13-1ubuntu4
Priority: optional
Section: libs
Source: appstream-glib
Origin: Ubuntu
Maintainer: Ubuntu Developers 
Original-Maintainer: Matthias Klumpp 
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 312 kB
Depends: libarchive13, libc6 (>= 2.14), libgcab-1.0-0 (>= 0.4), 
libgdk-pixbuf2.0-0 (>= 2.25.2), libglib2.0-0 (>= 2.46), libsoup2.4-1 (>= 2.52), 
libuuid1 (>= 2.16), libyaml-0-2
Homepage: http://people.freedesktop.org/~hughsient/appstream-glib/
Task: ubuntu-desktop, ubuntu-usb, kubuntu-desktop, edubuntu-desktop, 
edubuntu-usb, xubuntu-core, xubuntu-desktop, mythbuntu-desktop, lubuntu-core, 
ubuntustudio-desktop-core, ubuntustudio-desktop, ubuntu-gnome-desktop, 
ubuntukylin-desktop, ubuntu-mate-core, ubuntu-mate-desktop, ubuntu-mate-cloudtop
Supported: 5y
Download-Size: 101 kB
APT-Manual-Installed: no
APT-Sources: http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
Description: GNOME library to access AppStream services
 AppStream is a cross-distribution effort for creating and sharing
 metadata about software components available in the package repositories
 of a distribution.
 .
 This package contains a GObject-based library to read and write AppStream
 XML metadata and retrieve additional data such as screenshots.
 .
 As opposed to libappstream, this library does not use an on-disk cache but
 reads data directly from the XML or DEP-11 YAML files.

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Launchpad Bug Tracker]

This bug was fixed in the package appstream-glib - 0.5.13-1ubuntu3

---
appstream-glib (0.5.13-1ubuntu3) xenial; urgency=medium

  * Catch errors from libyaml and display proper warnings
rather than spin on them. (LP: #1591868)

 -- Mario Limonciello   Tue, 30 Aug 2016
13:51:56 -0500

** Changed in: appstream-glib (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

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Re: [Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

It is currently in the proposed repository. If no problems are reported as
regressions in the next few days it will transition into the updates
repository.

If you would like to enable proposed to test it yourself you can follow the
steps here:
https://wiki.ubuntu.com/Testing/EnableProposed

Please do report back if it resolves the problem for you. If the problem
persists after applying the update you may need to file an additional bug
to diagnose further.

On Mon, Sep 5, 2016, 04:01 Steve Lorimer 
wrote:

> How can I get this fix in Xenial?
>
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[Bug 1591868] Re: fwupd consuming 100% CPU

[Steve Lorimer]

How can I get this fix in Xenial?

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

I confirmed the fix is doing as intended on xenial.  fwupd doesn't peg
the CPU or crash from the bad data.  It just exits.

$ sudo /usr/lib/x86_64-linux-gnu/fwupd/fwupd -v
16:23:19Verbose debugging enabled (on console 1)
16:23:19adding plugin 
/usr/lib/x86_64-linux-gnu/fwupd-plugins-1/libfu_plugin_test.so
16:23:19performing init() on test
16:23:19adding plugin 
/usr/lib/x86_64-linux-gnu/fwupd-plugins-1/libfu_plugin_steelseries.so
FuMain: failed to load AppStream data: scanner error: mapping values are not 
allowed in this context at ln:2 col:5 
16:23:19FuMain: failed to load AppStream data: scanner error: mapping 
values are not allowed in this context at ln:2 col:5 


** Tags removed: verification-needed
** Tags added: verification-done

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mathew Hodson]

** No longer affects: libyaml (Ubuntu Yakkety)

** No longer affects: libyaml (Ubuntu Xenial)

** No longer affects: fwupd (Ubuntu Yakkety)

** No longer affects: fwupd (Ubuntu Xenial)

** No longer affects: fwupd (Ubuntu)

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Chris J Arges]

Hello Dustin, or anyone else affected,

Accepted appstream-glib into xenial-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/appstream-
glib/0.5.13-1ubuntu3 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: appstream-glib (Ubuntu Xenial)
   Status: Confirmed => Fix Committed

** Tags added: verification-needed

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Scott Kitterman]

** No longer affects: libyaml (Ubuntu)

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Launchpad Bug Tracker]

This bug was fixed in the package appstream-glib - 0.6.2-0ubuntu1

---
appstream-glib (0.6.2-0ubuntu1) yakkety; urgency=medium

  * New upstream version.
  * Fixes daemon hangs with corrupt data (LP: #1591868)
  * Drop gcc shift warnings patch.

 -- Mario Limonciello   Tue, 30 Aug 2016
13:42:09 -0500

** Changed in: appstream-glib (Ubuntu Yakkety)
   Status: Confirmed => Fix Released

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

For Yakkety: this is fixed in appstream-glib 0.6.2.
For xenial: these are the 3 commits needed to fix the problem:
https://github.com/hughsie/appstream-glib/commit/60033e61394562d706e703ad33e0d7e6583d83ce
https://github.com/hughsie/appstream-glib/commit/481055cd02c5244bede06ca4a06ab55602d01505
https://github.com/hughsie/appstream-glib/commit/57625db18b2cfe6e9d8a39a5d0cf1ed35af50e02

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Martin Pitt]

It seems the patch here is not sufficient, so unsubscribing sponsors for
now. Please resubscribe once there is an uploadable patch.

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

Seems still not enough, that one is loading from data, I was having the crash 
in loading from a file.  I've added this which seems to cover it.
https://github.com/hughsie/appstream-glib/pull/133

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Richard Hughes]

Agreed; reproduced -- grab this on top of the last patch:

commit 481055cd02c5244bede06ca4a06ab55602d01505
Author: Richard Hughes 
Date:   Sun Aug 21 08:59:45 2016 +0100

trivial: Use the correct autoptr cleanup on yaml error

:100644 100644 f65f75b... 48e51f0... M  libappstream-glib/as-yaml.c

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Re: [Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

I don't have it handy over the weekend but it was just the same test file I
was using above put into /var with the extra s.

On Sat, Aug 20, 2016, 02:20 Richard Hughes  wrote:

> Mario, can you upload /home/test/yaml.yml somewhere please.
>
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[Bug 1591868] Re: fwupd consuming 100% CPU

[Richard Hughes]

Mario, can you upload /home/test/yaml.yml somewhere please.

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

I was running some tests with that backport applied to 0.5.13 on Ubuntu
as well as running the master branch and was getting segfaults now with
that same corrupt file I was working with.

Starting program: /usr/bin/appstream-util validate /home/test/yaml.yml
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
/home/test/yaml.yml: [New Thread 0x710cc700 (LWP 29156)]
[New Thread 0x708cb700 (LWP 29157)]

Thread 1 "appstream-util" received signal SIGSEGV, Segmentation fault.
__GI___libc_free (mem=0x3) at malloc.c:2952
2952malloc.c: No such file or directory.
(gdb) bt full
#0  __GI___libc_free (mem=0x3) at malloc.c:2952
ar_ptr = 
p = 
hook = 0x0
#1  0x77bb501b in as_node_destroy_node_cb (node=, 
user_data=) at as-node.c:140
data = 0x55796b40
#2  0x76dff5f5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x76dff5a9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x76e00281 in g_node_traverse () from 
/lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x77bb55d2 in as_node_unref (node=0x7fffe4009ad0) at as-node.c:157
No locals.
#6  0x77bc2f91 in glib_autoptr_cleanup_AsNode (_ptr=) at as-node.h:197
No locals.
#7  as_yaml_from_file (file=file@entry=0x55798500, 
cancellable=cancellable@entry=0x0, error=error@entry=0x7fffdc70) at 
as-yaml.c:474
node = 
content_type = 
parser = {error = YAML_NO_ERROR, problem = 0x0, problem_offset = 0, 
problem_value = 0, problem_mark = {index = 0, line = 0, column = 0}, context = 
0x0, context_mark = {index = 0, line = 0, 
column = 0}, read_handler = 0x0, read_handler_data = 0x0, input = 
{string = {start = 0x0, end = 0x0, current = 0x0}, file = 0x0}, eof = 0, buffer 
= {start = 0x0, end = 0x0, pointer = 0x0, 
last = 0x0}, unread = 0, raw_buffer = {start = 0x0, end = 0x0, 
pointer = 0x0, last = 0x0}, encoding = YAML_ANY_ENCODING, offset = 0, mark = 
{index = 0, line = 0, column = 0}, 
  stream_start_produced = 0, stream_end_produced = 0, flow_level = 0, 
tokens = {start = 0x0, end = 0x0, head = 0x0, tail = 0x0}, tokens_parsed = 0, 
token_available = 0, indents = {start = 0x0, 
end = 0x0, top = 0x0}, indent = 0, simple_key_allowed = 0, 
simple_keys = {start = 0x0, end = 0x0, top = 0x0}, states = {start = 0x0, end = 
0x0, top = 0x0}, 
  state = YAML_PARSE_STREAM_START_STATE, marks = {start = 0x0, end = 
0x0, top = 0x0}, tag_directives = {start = 0x0, end = 0x0, top = 0x0}, aliases 
= {start = 0x0, end = 0x0, top = 0x0}, 
  document = 0x0}
parser_cleanup = 
data = 0x0
conv = 
info = 0x7fffe4009b90
file_stream = 
stream_data = 
#8  0x77bbd481 in as_store_load_yaml_file (error=0x7fffdc70, 
cancellable=0x0, file=0x55798500, store=0x5579a1f0) at as-store.c:1129
tmp = 
ctx = 0x0
icon_path = 0x0
root = 0x0
app_n = 
n = 
tok = 0x0
#9  as_store_from_file_internal (store=0x5579a1f0, file=0x55798500, 
id_prefix=, cancellable=0x0, error=0x7fffdc70) at 
as-store.c:1371
filename = 0x557abe60 "/home/test/yaml.yml"
icon_prefix = 0x0
error_local = 0x0
root = 0x0
ptask = 0x557a7400
__func__ = "as_store_from_file_internal"
#10 0xec97 in ?? ()
No symbol table info available.
#11 0x9e6f in main ()
No symbol table info available.

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Title:
  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

** Description changed:

+ [Impact]
+ 
+  * Corrupt yaml data is causing consumers of appstream data (such as
+ gnome-software or fwupd) to get stuck in a spin and consume CPU and
+ battery.
+ 
+ [Test Case]
+ 
+  * Introduce corrupt data into /var/lib/app-info/yaml/
+  * Execute sudo /usr/lib/x86_64-linux-gnu/fwupd/fwupd -v
+  * Check CPU usage calms down after initialization
+ 
+ [Regression Potential]
+ 
+  * This patch has been backported from a newer stable release upstream.
+  * Due to the nature of backporting, it doesn't directly apply to Ubuntu and 
will need some adjustments made.
+  * Regressions would occur in gnome-software not displaying software or fwupd 
not running properly.
+ 
+ [Other Info]
+  
+ Original bug report: 
+ 
  fwupd process has been consuming 100% of my CPU for several days now
  (IBM Thinkpad x250 running fully updated 16.04).
  
  gdb backtrace below.
  
  Thread 2 (Thread 0x7f3272cf5700 (LWP 4496)):
  #0  0x7f3279b79e8d in poll () at ../sysdeps/unix/syscall-template.S:84
  No locals.
  #1  0x7f327ae9331c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  No symbol table info available.
  #2  0x7f327ae9342c in g_main_context_iteration () from 
/lib/x86_64-linux-gnu/libglib-2.0.so.0
  No symbol table info available.
  #3  0x7f327ae93469 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  No symbol table info available.
  #4  0x7f327aeb9b45 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  No symbol table info available.
  #5  0x7f3279e4f6fa in start_thread (arg=0x7f3272cf5700) at 
pthread_create.c:333
- __res = 
- pd = 0x7f3272cf5700
- now = 
- unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139854651283200, 
418179942412000561, 0, 140731891236207, 
- 139854651283904, 0, -312637405101744847, 
-312613451844084431}, mask_was_saved = 0}}, priv = {pad = {
-   0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, 
canceltype = 0}}}
- not_first_call = 
- pagesize_m1 = 
- sp = 
- freesize = 
- __PRETTY_FUNCTION__ = "start_thread"
+ __res = 
+ pd = 0x7f3272cf5700
+ now = 
+ unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139854651283200, 
418179942412000561, 0, 140731891236207,
+ 139854651283904, 0, -312637405101744847, 
-312613451844084431}, mask_was_saved = 0}}, priv = {pad = {
+   0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, 
canceltype = 0}}}
+ not_first_call = 
+ pagesize_m1 = 
+ sp = 
+ freesize = 
+ __PRETTY_FUNCTION__ = "start_thread"
  #6  0x7f3279b85b5d in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
  No locals.
  
  Thread 1 (Thread 0x7f327c926900 (LWP 4486)):
  #0  0x7f3279e542b7 in __GI___pthread_rwlock_rdlock (rwlock=0x7f3279e43920 
<__libc_setlocale_lock>)
- at pthread_rwlock_rdlock.c:135
- result = 0
- wake = false
- #1  0x7f3279aaf0e9 in __dcigettext (domainname=0x7f327aedee63 "glib20", 
- msgid1=0x7f327b4ca11a "Invalid compressed data", msgid2=0x0, plural=0, 
n=0, category=5) at dcigettext.c:527
- __p = 
- domain = 
- binding = 
- categoryname = 
- categoryvalue = 
- dirname = 
- xdomainname = 
- single_locale = 
- retval = 
- retlen = 93892446493824
- saved_errno = 0
- search = {domainname = 0x7ffeb262bb00 "`\234\353\teU", category = 
166588464, 
-   localename = 0x556509ededa8 "p\362\355\teU", counter = 166589040, 
domain = 0x23, 
-   translation = 0x5565fffb , 
-   translation_length = 93892446493792, msgid = {appended = 
0x7ffeb262bb08 "", 
- ptr = 0x52fb0a5631f15a00 }}
- foundp = 0x0
- localename = 
- domainname_len = 
+ at pthread_rwlock_rdlock.c:135
+ result = 0
+ wake = false
+ #1  0x7f3279aaf0e9 in __dcigettext (domainname=0x7f327aedee63 "glib20",
+ msgid1=0x7f327b4ca11a "Invalid compressed data", msgid2=0x0, plural=0, 
n=0, category=5) at dcigettext.c:527
+ __p = 
+ domain = 
+ binding = 
+ categoryname = 
+ categoryvalue = 
+ dirname = 
+ xdomainname = 
+ single_locale = 
+ retval = 
+ retlen = 93892446493824
+ saved_errno = 0
+ search = {domainname = 0x7ffeb262bb00 "`\234\353\teU", category = 
166588464,
+   localename = 0x556509ededa8 "p\362\355\teU", counter = 166589040, 
domain = 0x23,
+   translation = 0x5565fffb ,
+   translation_length = 93892446493792, msgid = {appended = 
0x7ffeb262bb08 "",
+ ptr = 0x52fb0a5631f15a00 }}
+ foundp = 0x0
+ localename = 
+ domainname_len = 
  #2  0x7f327b44338c in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
  No symbol table info available.
  #3  0x7f327b3e95f9 in ?? () 

[Bug 1591868] Re: fwupd consuming 100% CPU

[Mathew Hodson]

** Tags added: patch xenial

** Changed in: appstream-glib (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: appstream-glib (Ubuntu Yakkety)
   Importance: Undecided => Medium

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Richard Hughes]

I've further extended Anders patch to return a helpful GError:
https://github.com/hughsie/appstream-
glib/commit/64029dfe02b85afe611a279380a84fca51208d4c

I've rolled up these three patches into one and backported to the stable
branch in: https://github.com/hughsie/appstream-
glib/commit/60033e61394562d706e703ad33e0d7e6583d83ce

I guess pulling that last commit into 16.04 makes sense, if nothing else
so it pinpoints where exactly and why the file is corrupt.

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

** Changed in: appstream-glib (Ubuntu Xenial)
   Status: New => Confirmed

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Anders Kaseorg]

Also submitted upstream: https://github.com/hughsie/appstream-
glib/pull/129

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Anders Kaseorg]

The infinite loop is not in libyaml (yaml_parser_parse), but rather in
its caller in appstream-glib (as_node_yaml_process_layer), which is
ignoring the error code returned by yaml_parser_parse and blindly going
around the loop again.  This patch fixes it.

** Patch added: "appstream-glib_0.5.17-0ubuntu1_lp1591868.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/fwupd/+bug/1591868/+attachment/4722986/+files/appstream-glib_0.5.17-0ubuntu1_lp1591868.debdiff

** Changed in: libyaml (Ubuntu Xenial)
   Status: New => Invalid

** Changed in: libyaml (Ubuntu Yakkety)
   Status: New => Invalid

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

** Also affects: libyaml (Ubuntu)
   Importance: Undecided
   Status: New

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

Just so it's clear - I haven't randomly reproduced this like all the
people in this thread have, I manually inserted an error into a file and
ran into identical problems as reported in this thread.

I don't know tons about how the YAML that ends up in /var/lib/app-
info/yaml is generated, but I thought it was all based upon packages in
the Ubuntu archives.

Since it's not a 100% reproduction rate, my conjecture would be a
mirroring problem or download problem that introduced some corruption
along the way.  It would be great for someone who is inherently affected
without doing anything wrong to share their contents of /var/lib/app-
info/yaml while affected.

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

** Also affects: appstream-glib (Ubuntu Yakkety)
   Importance: Undecided
   Status: Confirmed

** Also affects: fwupd (Ubuntu Yakkety)
   Importance: Undecided
   Status: Incomplete

** Also affects: appstream-glib (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: fwupd (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Changed in: fwupd (Ubuntu Xenial)
   Status: New => Invalid

** Changed in: fwupd (Ubuntu Yakkety)
   Status: Incomplete => Invalid

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Richard Hughes]

There's a workaround here: https://github.com/hughsie/appstream-
glib/commit/2ec31bac7bd77e7b39c502276f4acec21ed9d576

Although, whatever wrote that invalid YAML file needs to be fixed, or
gnome-software is going to show very few applications...

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

So I think I've come up with a reliable way to reproduce this by placing
a corrupted yaml file in /var/lib/app-info.

Here is the file I placed (notice the extra s at the start):

s---
File: DEP-11
MediaBaseUrl: http://appstream.ubuntu.com/media/main
Origin: ubuntu-xenial-backports-main
Priority: 40
Time: '2016-07-28T18:38:36.877230+00:00'
Version: '0.8'

By running fwupd with that in place, it hangs and pegs at 100% CPU.

The BT of course isn't too surprising where it's hung:

#0  0x74249b6f in yaml_parser_parse () from 
/usr/lib/x86_64-linux-gnu/libyaml-0.so.2
#1  0x7779e5eb in as_node_yaml_process_layer 
(parser=parser@entry=0x7fffe030, parent=parent@entry=0x55832c40) at 
as-yaml.c:225
#2  0x7779eae0 in as_yaml_from_file (file=file@entry=0x55830560, 
cancellable=cancellable@entry=0x0, error=error@entry=0x7fffe340) at 
as-yaml.c:371
#3  0x77799481 in as_store_load_yaml_file (error=0x7fffe340, 
cancellable=0x0, file=0x55830560, store=0x55795880) at as-store.c:1129
#4  as_store_from_file_internal (store=store@entry=0x55795880, 
file=file@entry=0x55830560, id_prefix=id_prefix@entry=0x777a29ae 
"system", cancellable=cancellable@entry=0x0, 
error=error@entry=0x7fffe340) at as-store.c:1371
#5  0x77799ab7 in as_store_load_app_info_file (error=0x7fffe340, 
cancellable=0x0, path_xml=0x55798460 "/var/lib/app-info/yaml/yaml.yml", 
id_prefix=0x777a29ae "system", 
store=0x55795880) at as-store.c:2068
#6  as_store_load_app_info (store=store@entry=0x55795880, 
id_prefix=id_prefix@entry=0x777a29ae "system", 
path=path@entry=0x55798490 "/var/lib/app-info/yaml", 
flags=flags@entry=AS_STORE_LOAD_FLAG_APP_INFO_SYSTEM, 
cancellable=cancellable@entry=0x0, error=error@entry=0x7fffe4d8) at 
as-store.c:2118
#7  0x7779a131 in as_store_search_app_info 
(store=store@entry=0x55795880, 
flags=flags@entry=AS_STORE_LOAD_FLAG_APP_INFO_SYSTEM, 
id_prefix=id_prefix@entry=0x777a29ae "system", 
path=path@entry=0x55798430 "/var/lib/app-info", 
cancellable=cancellable@entry=0x0, error=error@entry=0x7fffe4d8) at 
as-store.c:2333
#8  0x7779abe4 in as_store_search_per_system (error=, 
cancellable=0x0, flags=, store=) at 
as-store.c:2535
#9  as_store_load (store=, flags=, 
cancellable=0x0, error=) at as-store.c:2683
#10 0xd9c7 in main ()

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: appstream-glib (Ubuntu)
   Status: New => Confirmed

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Re: [Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

That might not really be the useful bit - but rather the xapian data in
/var/cache/app-info. Can you just tar up the whole directory and attach it?

On Mon, Jul 25, 2016, 14:05 ZHANG Erkang  wrote:

> I didn't find yamls, this is the xml file of fwupd
>
>
> 
> 
>   
> com.dell.uefi124c207d.firmware
> XPS 15 9550/Precision 5510 System Update
> Firmware for the Dell XPS 15 9550/Precision 5510
> Dell Inc.
> Updating the system firmware improves
> performance.
> proprietary
> http://support.dell.com/
> 
>   
> 
> https://secure-lvfs.rhcloud.com/downloads/ec95a09f68afa49e02420e59bb8889af80a709a8-firmware_1.2.0.wu.cab
> 
>  filename="ec95a09f68afa49e02420e59bb8889af80a709a8-firmware_1.2.0.wu.cab"
> target="container"
> type="sha1">4902dcbeed2b1d3cf1e9fd14a4b1aedd5ce00a4f
>  type="sha1">319779f0d574595fb464a4651418c456c8787708
> 9692626
> 9417733
>   
>   
> 
> https://secure-lvfs.rhcloud.com/downloads/90bb8877b5e8a4e4a5a0ce56af37dc4be7cf0ae8-firmware_9550_5510.cab
> 
>  filename="90bb8877b5e8a4e4a5a0ce56af37dc4be7cf0ae8-firmware_9550_5510.cab"
> target="container"
> type="sha1">4e474c1040888188169b0bab4443e99b8c5c9bc3
>  type="sha1">d3c18d62256b909d25e3d9ccd96d78b0b59a745e
> 9660656
> 9380627
>   
>   
> 
> https://secure-lvfs.rhcloud.com/downloads/93d92eb7b94d02bbb58ae50653c2329d2f11aae2-firmware
> (1).cab
>  filename="93d92eb7b94d02bbb58ae50653c2329d2f11aae2-firmware (1).cab"
> target="container"
> type="sha1">12bc5fdea950a5cebbf2c2ab0e807c098622d710
>  type="sha1">36d4a02a7f7b6e6a055656f06023f3a70e1898dd
> 9657051
> 9376057
>   
> 
> 
>type="flashed">124c207d-5db8-4d95-bd31-34fd971b34f9
> 
>   
>   
> com.dell.uefi33773727.firmware
> XPS 13 9350 System Update
> Firmware for the Dell XPS 13 9350
> Dell Inc.
> Updating the system firmware improves
> performance.
> proprietary
> http://support.dell.com/
> 
>   
> 
> https://secure-lvfs.rhcloud.com/downloads/d3afa577b500700365dcdaaef8a573338f4f044b-firmware.cab
> 
>  filename="d3afa577b500700365dcdaaef8a573338f4f044b-firmware.cab"
> target="container"
> type="sha1">41510a4b428674076c422d335d762e4f489900e2
>  type="sha1">dadcdfef872d739f495340ae52338554be8a13e0
> SupportAssist PreBoot 2.0
> support.Improve Intel(R) Iris(TM) Graphics 540
> stability.
> 10970068
> 10686589
>   
>   
> 
> https://secure-lvfs.rhcloud.com/downloads/2b6e0ae88720a33e36c3ff75adc95511202b5971-firmware.cab
> 
>  filename="2b6e0ae88720a33e36c3ff75adc95511202b5971-firmware.cab"
> target="container"
> type="sha1">cb38891e7eccd5290070e375f96ad233836e4aa1
>  type="sha1">ef45e23301652dc740bbccd9df1c93a4a9b4d6ee
> 10965585
> 10683514
>   
>   
> 
> https://secure-lvfs.rhcloud.com/downloads/430eeb74eb7b682afe75d89b141cb66cd7aca466-firmware.cab
> 
>  filename="430eeb74eb7b682afe75d89b141cb66cd7aca466-firmware.cab"
> target="container"
> type="sha1">a56430fae2f21f4ff0fd6081f74217b34ed56fd5
>  type="sha1">a40ca4e881dc7aeb547c776e2638113940dc0745
> 10965316
> 10682983
>   
> 
> 
>type="flashed">33773727-8ee7-4d81-9fa0-57e8d889e1fa
> 
>   
>   
> com.dell.uefi43ca3264.firmware
> OptiPlex 7440 AIO System Update
> Firmware for the Dell OptiPlex 7440 AIO
> Dell Inc.
> Updating the system firmware improves
> performance.
> proprietary
> http://support.dell.com/
> 
>   
> 
> https://secure-lvfs.rhcloud.com/downloads/174243fc1da6a81fd9d132aada71187d5b24e469-firmware.OptiPlex_7440_AIO_1_3_9_LVFS.cab
> 
>  filename="174243fc1da6a81fd9d132aada71187d5b24e469-firmware.OptiPlex_7440_AIO_1_3_9_LVFS.cab"
> target="container"
> type="sha1">c89af7d6c8f9992744b7ef169eff1970a11eca89
>  type="sha1">0e5d526a554eda4bd04a72e6ba167834c27135f6
> Dell OptiPlex 7440 AIO 1.3.9
> 8602550
> 8320848
>   
> 
> 
>type="flashed">43ca3264-d791-4df8-9695-7b13a7361a0d
> 
>   
>   
> com.dell.uefia0a3aa54.firmware
> Embedded Box PC 5000 System Update
> Firmware for the Dell Embedded Box PC 5000
> Dell Inc.
> Updating the system firmware improves
> performance.
> proprietary
> http://support.dell.com/
> 
>   
> 
> https://secure-lvfs.rhcloud.com/downloads/202c4893e992297258c5ba5ed00e029c1ad53eb2-firmware_EmbeddedBoxPC5000_1.0.2.wu.cab
> 
>  filename="202c4893e992297258c5ba5ed00e029c1ad53eb2-firmware_EmbeddedBoxPC5000_1.0.2.wu.cab"
> target="container"
> type="sha1">3e13f79fe934d0ae72c05a090f730dddec37f471
>  type="sha1">3d82879b838239f6147fe7348767aee57d9f23f8
> 8784551
> 8503681
>   
>   
> 
> 

[Bug 1591868] Re: fwupd consuming 100% CPU

[ZHANG Erkang]

I didn't find yamls, this is the xml file of fwupd




  
com.dell.uefi124c207d.firmware
XPS 15 9550/Precision 5510 System Update
Firmware for the Dell XPS 15 9550/Precision 5510
Dell Inc.
Updating the system firmware improves 
performance.
proprietary
http://support.dell.com/

  

https://secure-lvfs.rhcloud.com/downloads/ec95a09f68afa49e02420e59bb8889af80a709a8-firmware_1.2.0.wu.cab
4902dcbeed2b1d3cf1e9fd14a4b1aedd5ce00a4f
319779f0d574595fb464a4651418c456c8787708
9692626
9417733
  
  

https://secure-lvfs.rhcloud.com/downloads/90bb8877b5e8a4e4a5a0ce56af37dc4be7cf0ae8-firmware_9550_5510.cab
4e474c1040888188169b0bab4443e99b8c5c9bc3
d3c18d62256b909d25e3d9ccd96d78b0b59a745e
9660656
9380627
  
  

https://secure-lvfs.rhcloud.com/downloads/93d92eb7b94d02bbb58ae50653c2329d2f11aae2-firmware
 (1).cab
12bc5fdea950a5cebbf2c2ab0e807c098622d710
36d4a02a7f7b6e6a055656f06023f3a70e1898dd
9657051
9376057
  


  124c207d-5db8-4d95-bd31-34fd971b34f9

  
  
com.dell.uefi33773727.firmware
XPS 13 9350 System Update
Firmware for the Dell XPS 13 9350
Dell Inc.
Updating the system firmware improves 
performance.
proprietary
http://support.dell.com/

  

https://secure-lvfs.rhcloud.com/downloads/d3afa577b500700365dcdaaef8a573338f4f044b-firmware.cab
41510a4b428674076c422d335d762e4f489900e2
dadcdfef872d739f495340ae52338554be8a13e0
SupportAssist PreBoot 2.0 support.Improve 
Intel(R) Iris(TM) Graphics 540 stability.
10970068
10686589
  
  

https://secure-lvfs.rhcloud.com/downloads/2b6e0ae88720a33e36c3ff75adc95511202b5971-firmware.cab
cb38891e7eccd5290070e375f96ad233836e4aa1
ef45e23301652dc740bbccd9df1c93a4a9b4d6ee
10965585
10683514
  
  

https://secure-lvfs.rhcloud.com/downloads/430eeb74eb7b682afe75d89b141cb66cd7aca466-firmware.cab
a56430fae2f21f4ff0fd6081f74217b34ed56fd5
a40ca4e881dc7aeb547c776e2638113940dc0745
10965316
10682983
  


  33773727-8ee7-4d81-9fa0-57e8d889e1fa

  
  
com.dell.uefi43ca3264.firmware
OptiPlex 7440 AIO System Update
Firmware for the Dell OptiPlex 7440 AIO
Dell Inc.
Updating the system firmware improves 
performance.
proprietary
http://support.dell.com/

  

https://secure-lvfs.rhcloud.com/downloads/174243fc1da6a81fd9d132aada71187d5b24e469-firmware.OptiPlex_7440_AIO_1_3_9_LVFS.cab
c89af7d6c8f9992744b7ef169eff1970a11eca89
0e5d526a554eda4bd04a72e6ba167834c27135f6
Dell OptiPlex 7440 AIO 1.3.9
8602550
8320848
  


  43ca3264-d791-4df8-9695-7b13a7361a0d

  
  
com.dell.uefia0a3aa54.firmware
Embedded Box PC 5000 System Update
Firmware for the Dell Embedded Box PC 5000
Dell Inc.
Updating the system firmware improves 
performance.
proprietary
http://support.dell.com/

  

https://secure-lvfs.rhcloud.com/downloads/202c4893e992297258c5ba5ed00e029c1ad53eb2-firmware_EmbeddedBoxPC5000_1.0.2.wu.cab
3e13f79fe934d0ae72c05a090f730dddec37f471
3d82879b838239f6147fe7348767aee57d9f23f8
8784551
8503681
  
  

https://secure-lvfs.rhcloud.com/downloads/fcfb9d6ee586fcae707ae99d60c07b3b5de64a9e-firmware.cab
e45531faea1a79e6886d39ff7a0897d8ae4f47a5
9c5554c8798f0e0f93e2545ac0efee17705b9d9e
8784628
8499304
  


  a0a3aa54-0491-4077-b985-c057ad3e749b

  
  
com.dell.uefiaee2604a.firmware
Embedded Box PC 3000 System Update
Firmware for the Dell Embedded Box PC 3000
Dell Inc.
Updating the system firmware improves 
performance.
proprietary
http://support.dell.com/

  

https://secure-lvfs.rhcloud.com/downloads/258cb0ad5cac256c36328e808fb868b209c120e3-firmware_EmbeddedBoxPC3000_1.0.1.wu.cab
06152c12649e4cd594c78b714bc4a40b77cefea4
e0123f8a9da78264a6f9f2b5dfa30141e676dfba
4707474
4442820
  


  aee2604a-7e36-4738-918d-a8eb8e307e65

  
  
com.dell.uefie0f614ed.firmware
Edge Gateway 5000/5100 System Update
Firmware for the Dell Edge Gateway 5000/5100
Dell Inc.
Updating the system firmware improves 
performance.
proprietary
http://support.dell.com/

  

https://secure-lvfs.rhcloud.com/downloads/fb4428e20c738152103d92ed94adf9958d5237f2-firmware.cab
203c294eb34bd0cd481f0be488db45d064ff8f70
647cf1904adaaf235754169987b1aa6b4f0a7be7
4597155
4331476
  
  

https://secure-lvfs.rhcloud.com/downloads/3081eb5a0946ec22e8c178280118093fae984890-firmware.cab
762b54fdb6baa6bbf33bf50757443711002ce770

[Bug 1591868] Re: fwupd consuming 100% CPU

[Richard Hughes]

Can you upload a tarball of whatever is in /var/cache/app-info/yamls
pls.

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

** Also affects: appstream-glib (Ubuntu)
   Importance: Undecided
   Status: New

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[ZHANG Erkang]

Following Mario's steps, I was blocked in the fourth step. The program
hanged out and it doesn't work to press ctrl + c:


  PID UTIL. PR  NIVIRTRESSHR S  %CPU %MEMTEMPS+ COM.
17208 root  20   0  236256  10632   9352 R  99,3  0,1   2:51.77 fwupd   
17756 root  20   0  236256  10732   9456 R  99,0  0,1   1:35.75 fwupd   
17740 root  20   0  236256  10816   9536 R  92,0  0,1   2:01.69 fwupd  

root@erkang-XPS-13-9343:~# gdb 2>&1 | tee gdb-fwupd.txt
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
.
Find the GDB manual and other documentation resources online at:
.
For help, type "help".
Type "apropos word" to search for commands related to "word".
(gdb) handle SIG33 pass nostop noprint
SignalStop  Print   Pass to program Description
SIG33 NoNo  Yes Real-time event 33
(gdb) set pagination 0
(gdb) attach 17208
Attaching to process 17208
[New LWP 17219]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__stpcpy_sse2 () at ../sysdeps/x86_64/multiarch/../strcpy.S:29
29  ../sysdeps/x86_64/multiarch/../strcpy.S: Aucun fichier ou dossier de ce 
type.
(gdb) continue
Continuing.
^C

^C


^C

^C


Following Richard's indication, the command simply blocked.. I didn't get any 
output:

root@erkang-XPS-13-9343:~# appstream-util search notgoingtoexist
--verbose

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Richard Hughes]

Also, could you try getting the output of "appstream-util search
notgoingtoexist --verbose" please. Thanks!

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  fwupd consuming 100% CPU

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Re: [Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

Thanks.  Considering that can you attach GDB to the process while it's
using 100% CPU and get a BT?
Information how to do this is here:
https://wiki.ubuntu.com/Backtrace#Already_running_programs

On Tue, Jul 19, 2016 at 12:35 PM ZHANG Erkang 
wrote:

> I rerun the command
>
> sudo /usr/lib/x86_64-linux-gnu/fwupd/fwupd -v
>
> and I check these two report, their validations are successful.
>
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>
> Title:
>   fwupd consuming 100% CPU
>
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[Bug 1591868] Re: fwupd consuming 100% CPU

[ZHANG Erkang]

I rerun the command

sudo /usr/lib/x86_64-linux-gnu/fwupd/fwupd -v

and I check these two report, their validations are successful.

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  fwupd consuming 100% CPU

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Re: [Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

Thanks for sharing.  You seem to have two fwupd processes running in your
test.  Do you get the same output if you kill -9 them first where the last
thing output was "performing init() on test"?

If so, my suspicion would be some corrupt appstream data.  The only thing
that happens between loading the plugins and loading the configuration file
is that the appstream store is initialized.

Can you check if both of these report successfully?

appstreamcli validate /var/cache/app-info/xmls/fwupd.xml

appstreamcli validate /usr/share/app-info/xmls/org.freedesktop.fwupd.xml


@hughsie, any other thoughts?


On Mon, Jul 18, 2016 at 2:20 PM ZHANG Erkang  wrote:

> erkang@erkang-XPS-13-9343:~$ sudo /usr/lib/x86_64-linux-gnu/fwupd/fwupd -v
> 21:07:14Verbose debugging enabled (on console 1)
> 21:07:14adding plugin
> /usr/lib/x86_64-linux-gnu/fwupd-plugins-1/libfu_plugin_steelseries.so
> 21:07:14adding plugin
> /usr/lib/x86_64-linux-gnu/fwupd-plugins-1/libfu_plugin_test.so
> 21:07:14performing init() on test
>
> erkang@erkang-XPS-13-9343:~$ fwupdmgr get-devices
> Erreur lors de l'appel de StartServiceByName pour org.freedesktop.fwupd :
> GDBus.Error:org.freedesktop.DBus.Error.TimedOut: Failed to activate service
> 'org.freedesktop.fwupd': timed out
>
>
> I can't find the command fwupdmgr monitor
>
> and once again when I tap top:
>
>
>  PID UTIL. PR  NIVIRTRESSHR S  %CPU %MEMTEMPS+ COM.
>  3240 root  20   0  238288  11080   9804 R  99,7  0,1   4:20.47 fwupd
>  3274 root  20   0  236256  10796   9520 R  99,3  0,1   3:50.68 fwupd
>
> --
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>
> Title:
>   fwupd consuming 100% CPU
>
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[Bug 1591868] Re: fwupd consuming 100% CPU

[ZHANG Erkang]

erkang@erkang-XPS-13-9343:~$ sudo /usr/lib/x86_64-linux-gnu/fwupd/fwupd -v
21:07:14Verbose debugging enabled (on console 1)
21:07:14adding plugin 
/usr/lib/x86_64-linux-gnu/fwupd-plugins-1/libfu_plugin_steelseries.so
21:07:14adding plugin 
/usr/lib/x86_64-linux-gnu/fwupd-plugins-1/libfu_plugin_test.so
21:07:14performing init() on test

erkang@erkang-XPS-13-9343:~$ fwupdmgr get-devices
Erreur lors de l'appel de StartServiceByName pour org.freedesktop.fwupd : 
GDBus.Error:org.freedesktop.DBus.Error.TimedOut: Failed to activate service 
'org.freedesktop.fwupd': timed out


I can't find the command fwupdmgr monitor

and once again when I tap top:


 PID UTIL. PR  NIVIRTRESSHR S  %CPU %MEMTEMPS+ COM.
 3240 root  20   0  238288  11080   9804 R  99,7  0,1   4:20.47 fwupd   
 3274 root  20   0  236256  10796   9520 R  99,3  0,1   3:50.68 fwupd

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[ZHANG Erkang]

Also have this bug for several days. (Ubuntu 16.04 LTS) Everytime I use
my laptop I have to kill all the fwupd processes.

I will try to provide some backtraces following Mario's indication asap.

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

There's a few duplicates of this so far, but not a clear set of steps to
reproduce this yet.

Can someone affected please do the following:
1) First confirm that you are on the latest version of fwupd in Ubuntu.  This 
is version 0.7.0-0ubuntu4.2 for xenial.
2) Install the relevant debug symbols as mentioned by @hughsie.
For 64 bit:
http://ddebs.ubuntu.com/ubuntu/pool/main/f/fwupd/fwupd-dbgsym_0.7.0-0ubuntu4.2_amd64.ddeb
http://ddebs.ubuntu.com/ubuntu/pool/main/f/fwupd/libdfu1-dbgsym_0.7.0-0ubuntu4.2_amd64.ddeb
http://ddebs.ubuntu.com/ubuntu/pool/main/f/fwupd/libfwupd1-dbgsym_0.7.0-0ubuntu4.2_amd64.ddeb
http://ddebs.ubuntu.com/ubuntu/pool/main/a/appstream-glib/libappstream-glib8-dbgsym_0.5.13-1_amd64.ddeb
# sudo apt install libyaml-0-2-dbg

3) # sudo killall fwupd
4) # sudo /usr/lib/x86_64-linux-gnu/fwupd/fwupd -v
5) In a separate terminal: # fwupdmgr get-devices
6) In a separate terminal: # fwupdmgr monitor
5) Reproduce the issue

Hopefully the terminal output from (4, 5, 6) will be useful.  If it's
not, then when this is happening attaching to the process using gdb
(details available
https://wiki.ubuntu.com/Backtrace#Already_running_programs) and provide
the backtrace.

The backtrace in this bug didn't have debug symbols installed, so it
wasn't useful to figure out what was actually happening.

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[humberto]

This bug is draining my notebook battery

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

** Changed in: fwupd (Ubuntu)
   Status: New => Incomplete

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Mario Limonciello]

For running fwupd verbosely the exact set of steps should be:

#sudo killall fwupd
#sudo  /usr/lib/x86_64-linux-gnu/fwupd/fwupd -v

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  fwupd consuming 100% CPU

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[Bug 1591868] Re: fwupd consuming 100% CPU

[Richard Hughes]

Interesting bug. This looks to be spinning in libyaml, but without debug
symbols it's a little hard to piece together. Could you please install
the relevant debug symbols (at least libappstream-glib, fwupd and
libyaml) and get a new backtrace please. If you can reproduce using
"fwupd --verbose" that might throw some light on what's going on.
Thanks!

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