Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200726120752.16768-1-grandmaster@al2klimov.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch fixes multipe spelling typo found in ktest.pl.
Link: http://lkml.kernel.org/r/20200309115430.57540-1-standby24x7@gmail.com
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Before rebooting the box, a "ssh sync" is called to the test machine to see
if it is alive or not. But if the test machine is in a partial state, that
ssh may never actually finish, and the ktest test hangs.
Add a 10 second timeout to the sync test, which will fail after 10 seconds
and then cause the test to reboot the test machine.
Cc: stable@vger.kernel.org
Fixes: 6474ace999 ("ktest.pl: Powercycle the box on reboot if no connection can be made")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
For the last time, I screwed up my ktest config file, and the build went
into the default "randconfig", blowing away the .config that I had set up.
The reason for the default randconfig was because when this was first
written, I wanted to do a bunch of randconfigs. But as time progressed,
ktest isn't about randconfig anymore, and because randconfig destroys the
config in the build directory, it's a dangerous default to have. Use
oldconfig as the default.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This patch fixes some spelling typo in sample.conf
Link: http://lkml.kernel.org/r/20190930124925.20250-1-standby24x7@gmail.com
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This patch fixes some spelling typos in config-bisect.pl
Link: http://lkml.kernel.org/r/20190723032445.14220-1-standby24x7@gmail.com
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Based on 1 normalized pattern(s):
licensed under the terms of the gnu gpl license version 2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 62 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.929121379@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For BLS, kernel entry is added by kernel-install command through
POST_INSALL, for example,
POST_INSTALL = ssh root@Test "/usr/bin/kernel-install \
add $KERNEL_VERSION /boot/vmlinuz-$KERNEL_VERSION"
The entry is removed by kernel-install command and the kernel
version is needed for the argument.
Pass KERNEL_VERSION variable to POST_KTEST so that kernel-install
command can remove the entry like as follows:
POST_KTEST = ssh root@Test "/usr/bin/kernel-install remove $KERNEL_VERSION"
Link: http://lkml.kernel.org/r/20190509213647.6276-5-msys.mizuma@gmail.com
Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Fedora 30 introduces Boot Loader Specification (BLS),
it changes around grub entry configuration.
kernel entries aren't in grub.cfg. We can get the entries
by "grubby --info=ALL" command.
Introduce grub2bls as REBOOT_TYPE option for BLS.
Link: http://lkml.kernel.org/r/20190509213647.6276-4-msys.mizuma@gmail.com
Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Unexpected power cycle occurs while the installation of the
kernel.
ssh root@Test sync ... [0 seconds] SUCCESS
ssh root@Test reboot ... [1 second] FAILED!
virsh destroy Test; sleep 5; virsh start Test ... [6 seconds] SUCCESS
That is because REBOOT, the default is "ssh $SSH_USER@$MACHINE
reboot", exits as 255 even if the reboot is successfully done,
like as:
]# ssh root@Test reboot
Connection to Test closed by remote host.
]# echo $?
255
]#
To avoid the unexpected power cycle, introduce a new parameter,
REBOOT_RETURN_CODE to judge whether REBOOT is successfully done
or not.
Link: http://lkml.kernel.org/r/20190418135943.12640-1-msys.mizuma@gmail.com
Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
ktest fails if meta characters are in GRUB_MENU, for example
GRUB_MENU = 'Fedora (test)'
The failure happens because the meta characters are not escaped,
so the menu doesn't match in any entries in GRUB_FILE.
Use quotemeta() to escape the meta characters.
Link: http://lkml.kernel.org/r/20190417235823.18176-1-msys.mizuma@gmail.com
Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
If a test has an error, display not only the what type of test failed, but
if the test was giving a name, display that too, as well as the current
iteration of the tests. Each test has an iteration number associated to it.
For error messages display that iteration number along with the test type
and test name. This includes the message that gets sent via email.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
in my local tree for some time. I need to push them upstream:
- Separate out config-bisect.pl from ktest.pl.
This allows users to do config bisects without full ktest setup.
- Email on status change.
Allow the user to be emailed on test start, finish, failure, etc.
- Other small fixes and enhancements
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Merge tag 'ktest-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest updates from Steven Rostedt:
"These commits have either been sitting in my INBOX or have been in my
local tree for some time. I need to push them upstream:
- Separate out config-bisect.pl from ktest.pl.
This allows users to do config bisects without full ktest setup.
- Email on status change.
Allow the user to be emailed on test start, finish, failure, etc.
- Other small fixes and enhancements"
* tag 'ktest-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: (24 commits)
ktest: Take submenu into account for grub2 menus
ktest.pl: Add MAIL_COMMAND option to define how to send email
ktest.pl: Use run_command to execute sending mail
ktest.pl: Allow dodie be recursive
ktest.pl: Kill test if mailer is not supported
ktest.pl: Add MAIL_PATH option to define where to find the mailer
ktest.pl: No need to print no mailer is specified when mailto is not
Ktest: add email options to sample.config
Ktest: Use dodie for critical falures
Ktest: Add SigInt handling
Ktest: Add email support
ktest.pl: Detect if a config-bisect was interrupted
ktest.pl: Make finding config-bisect.pl dynamic
ktest.pl: Have ktest.pl pass -r to config-bisect.pl to reset bisect
ktest.pl: Use diffconfig if available for failed config bisects
ktest.pl: Allow for the config-bisect.pl output to display to console
ktest: Use config-bisect.pl in ktest.pl
ktest: Add standalone config-bisect.pl program
ktest: Set do_not_reboot=y for CONFIG_BISECT_TYPE=build
ktest: Set buildonly=1 for CONFIG_BISECT_TYPE=build
...
Allow the user to override the default way to send email. This will allow
the user to add their own mailer and format for sending email.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Instead of open coding system() call, use run_command which will log the
sending of email as well.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
If dodie cause a function that itself will call dodie, then be able to
handle that. This will allow dodie functions to call run_command, which
could possibly call dodie. If dodie is called again, simply ignore it.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
The option MAIL_PATH lets the user decide how to find the mailer they are
using. For example, sendmail is usually located in /usr/sbin but is not
always in the path of non admin users. Have ktest look through the user's
PATH environment variable (adding /usr/sbin) as well, but if that's not good
enough, allow the user to define where to find the mailer.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
squash to mail exec
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
If the user doesn't want to send mail, then don't bother them with output
that says they didn't specify a mailer. That can be annoying.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
A block of email options is added under the optional config section.
Link: http://lkml.kernel.org/r/1522094884-22718-5-git-send-email-tianyang.chen@oracle.com
Suggested-by: Dhaval Giani <dhaval.giani@oracle.com>
Signed-off-by: Tim Tianyang Chen <tianyang.chen@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Users should get emails when the script dies because of a critical failure.
Critical failures are defined as any errors that could abnormally terminate
the script.
In order to add email support, this patch converts all die() to dodie() except:
* when '-v' is used as an option to get the version of the script.
* in Sig-Int handeler because it's not a fatal error to cancel the script.
* errors happen during parsing config
Link: http://lkml.kernel.org/r/1522094884-22718-4-git-send-email-tianyang.chen@oracle.com
Suggested-by: Dhaval Giani <dhaval.giani@oracle.com>
Signed-off-by: Tim Tianyang Chen <tianyang.chen@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
User can cancel tests and specify handler's behavior using option
'EMAIL_WHEN_CANCELED'.
Link: http://lkml.kernel.org/r/1522094884-22718-3-git-send-email-tianyang.chen@oracle.com
Suggested-by: Dhaval Giani <dhaval.giani@oracle.com>
Signed-off-by: Tim Tianyang Chen <tianyang.chen@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Users can define optional variables to get email notifications.
Ktest can send emails when the script:
* was started
* failed with fatal errors and called dodie()
* completed all testing
Users have to setup the mailer provided in config prior to using this script.
Supported mailers: mailx, mail, sendmail
mailer specific routines are _sendmail_send(), _mailx_send()
Link: http://lkml.kernel.org/r/1522094884-22718-2-git-send-email-tianyang.chen@oracle.com
Suggested-by: Dhaval Giani <dhaval.giani@oracle.com>
Signed-off-by: Tim Tianyang Chen <tianyang.chen@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
If a config-bisect was interrupted, then allow the user to continue, or
restart a new config-bisect.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Just looking for config-bisect.pl in the source tree can be risky,
especially, if the source tree being tested doesn't have config-bisect.pl in
place. Instead, allow the user to set where to find config-bisect.pl with a
new option CONFIG_BISECT_EXEC.
If this option is not set, by default, ktest.pl will look for
config-bisect.pl in the following locations:
`pwd`/config-bisect.pl # where ktest.pl was called from
`dirname /path/to/ktest.pl`/config-bisect.pl # where ktest.pl exists
${BUILD_DIR}/tools/testing/ktest/config-bisect.pl
# where config-bisect.pl exists in the source tree.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
If config-bisect.pl sees that a config_bisect has already been started, it
will ask on the command line if it should bisect or not. This will mess up
running config_bisect from ktest.pl.
Have ktest.pl pass in '-r' to config-bisect.pl and have config-bisect.pl
recognize that to reset without asking.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Check to see if diffconfig is available and use that to diff the configs
instead of using 'diff -u', as diffconfig produces much better output of
kernel config files. It checks the source directory for the executable.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
When commands are run in ktest, they are only displayed in the ktest log
file, but that is not sufficient for outputting the display for config
bisects. The result of a config bisect is not shown.
Add a way to display the output of "run_command" which is the subroutine
used by ktest to execute commands. Use this feature to display the output of
config-bisect.pl executions to see the progress as well as the result.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reduce code duplication and take advantage of bisection logic
improvements by calling config-bisect.pl.
The output of make oldconfig is now copied directly to the desired file,
rather than doing assign_configs+save_config, in order to preserve the
ordering so that diffing the configs at the end will provide useful
output.
Link: http://lkml.kernel.org/r/20170717001630.10518-8-swood@redhat.com
Signed-off-by: Scott Wood <swood@redhat.com>
[ Modified to use with new version of config-bisect.pl ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Started working on a stand alone program that can do a config bisect. It is
based on the config bisect code of ktest.pl. Instead of needing all the
infrastructure of ktest.pl, all that is required for config-bisect.pl is two
config files. One that works, and one that does not. The goal is to pass in
the two files, and it will create a new "good" and a new "bad" config file
based on input from the user. After several iterations (calls to this
program), it will eventually end with a minimum config value that allows one
config to work and the other config to break.
The program uses a technique that takes the good config and then makes half
of the configs that differ from the bad config just like the bad config.
The code will use make oldconfig to make sure the configs that are set are
not all converted back due to incorrect dependencies on other configs set in
the bad config but not in the new test config.
This is still a work in progress, but as it was written while I was working
at Red Hat, I want this code to be submitted as such.
Signed-off-by: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
A number of architectures are being removed from the kernel, so
we no longer need to test them.
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Currently setting do_not_reboot is triggered by simple builds and bisect
builds, but not config bisect builds.
Link: http://lkml.kernel.org/r/20170717001630.10518-3-swood@redhat.com
Signed-off-by: Scott Wood <swood@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Rather than adding a third copy of the same logic, rework it to cover
all three buildonly cases at once.
In the future, please consider using the same variable to perform the
same function regardless of context...
Link: http://lkml.kernel.org/r/20170717001630.10518-2-swood@redhat.com
Signed-off-by: Scott Wood <swood@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
ktest.pl will read any file as long as its name is specified as the first
argument on the command line. Comment this fact in sample.conf.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Simply telling a new user to edit "the config file" without giving any
hints on where that file should go, what it should be named, or where
a template can be found, is not particularly helpful.
Link: http://lkml.kernel.org/r/20170717001630.10518-1-swood@redhat.com
Signed-off-by: Scott Wood <swood@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Before ktest issues a reboot, it will try to connect to the target machine
to make sure that it is still alive. If the target does not respond within 5
seconds, it will power cycle the box instead of issuing a reboot.
Five seconds may be too short, and ktest may unnecessarially power cycle the
box. I have found 25 seconds seems to be a better timeout for this purpose.
But even 25 may be too arbitrary. Add a CONNECT_TIMEOUT option to let the
user determine the timeout time before rebooting. By default, it has been
raised to 25 seconds.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
To clean up the console processes that are forked to monitor the console,
there needs to be a waitpid().
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
The Tile architecture port was added by Chris Metcalf in 2010, and
maintained until early 2018 when he orphaned it due to his departure
from Mellanox, and nobody else stepped up to maintain it. The product
line is still around in the form of the BlueField SoC, but no longer
uses the Tile architecture.
There are also still products for sale with Tile-GX SoCs, notably the
Mikrotik CCR router family. The products all use old (linux-3.3) kernels
with lots of patches and won't be upgraded by their manufacturers. There
have been efforts to port both OpenWRT and Debian to these, but both
projects have stalled and are very unlikely to be continued in the future.
Given that we are reasonably sure that nobody is still using the port
with an upstream kernel any more, it seems better to remove it now while
the port is in a good shape than to let it bitrot for a few years first.
Cc: Chris Metcalf <chris.d.metcalf@gmail.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: http://www.mellanox.com/page/npu_multicore_overview
Link: https://jenkins.debian.net/view/rebootstrap/job/rebootstrap_tilegx_gcc7/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
infinite loop while doing the make mrproper. Looking into the cause I noticed
that a recent update to the function run_command (used for running all
shell commands, including "make mrproper") changed the internal loop to
use the function wait_for_input. The wait_for_input uses select to look
at two file descriptors. One is the file descriptor of the command it is
running, the other is STDIN. The STDIN check was not checking the return
status of the sysread call, and was also just writing a lot of data into
syswrite without regard to the size of the data read.
Changing the code to check the return status of sysread, and also to still
process the passed in descriptor data without looping back to the select
fixed Greg's problem.
While looking at this code I also realized that the loop did not honor
the timeout if STDIN always had input (or for some reason return error).
this could prevent wait_for_input to timeout on the file descriptor it
is suppose to be waiting for. That is fixed too.
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Merge tag 'ktest-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest fixes from Steven Rostedt:
"Greg Kroah-Hartman reported to me that the ktest of v4.11-rc1 locked
up in an infinite loop while doing the make mrproper.
Looking into the cause I noticed that a recent update to the function
run_command (used for running all shell commands, including "make
mrproper") changed the internal loop to use the function
wait_for_input.
The wait_for_input function uses select to look at two file
descriptors. One is the file descriptor of the command it is running,
the other is STDIN. The STDIN check was not checking the return status
of the sysread call, and was also just writing a lot of data into
syswrite without regard to the size of the data read.
Changing the code to check the return status of sysread, and also to
still process the passed in descriptor data without looping back to
the select fixed Greg's problem.
While looking at this code I also realized that the loop did not honor
the timeout if STDIN always had input (or for some reason return
error). this could prevent wait_for_input to timeout on the file
descriptor it is suppose to be waiting for. That is fixed too"
* tag 'ktest-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Make sure wait_for_input does honor the timeout
ktest: Fix while loop in wait_for_input
The function wait_for_input takes in a timeout, and even has a default
timeout. But if for some reason the STDIN descriptor keeps sending in data,
the function will never time out. The timout is to wait for the data from
the passed in file descriptor, not for STDIN. Adding a test in the case
where there's no data from the passed in file descriptor that checks to see
if the timeout passed, will ensure that it will timeout properly even if
there's input in STDIN.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
The run_command function was changed to use the wait_for_input function to
allow having a timeout if the command to run takes too much time. There was
a bug in the wait_for_input where it could end up going into an infinite
loop. There's two issues here. One is that the return value of the sysread
wasn't used for the write (to write a proper size), and that it should
continue processing the passed in file descriptor too even if there was
input. There was no check for error, if for some reason STDIN returned an
error, the function would go into an infinite loop and never exit.
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes: 6e98d1b441 ("ktest: Add timeout to ssh command")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
I've been asked to get the upstream repo back up-to-date.
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Merge tag 'ktest-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest updates from Steven Rostedt:
"These are various fixes that I have made and never got around to
pushing. I've been asked to get the upstream repo back up-to-date"
* tag 'ktest-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Add variable run_command_status to save status of commands executed
ktest.pl: Powercycle the box on reboot if no connection can be made
ktest: Add timeout to ssh command
ktest: Fix child exit code processing
ktest: Have POST_TEST run after the test has totally completed
Create a variable called run_command_status that saves the status of the
executed commands and can be used by other functions later to test for
status.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
When performing a reboot of the test box, try to ssh to it. If it can't
connect for 5 seconds, then powercycle the box. This is useful because the
reboot is done via ssh, and if you can't ssh to the box because it is hung,
the reboot fails to reboot.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
