- 24 2月, 2014 5 次提交
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由 Paul E. McKenney 提交于
Currently, CONFIG_RCU_TORTURE_TEST=y is hardcoded into the kvm-test-1-rcu.sh script and CONFIG_PRINTK_TIME=y is mentioned in each and every configs file. This commit creates a CFcommon file for these two Kconfig parameters, and modifies kvm-test-1-rcu.sh to copy this new file into the .config file during the build. This change will allow these scripts to operate on torture types other than just rcutorture. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
This commit adds a pair of files in the configs directory to allow test-the-test runs of rcutorture via a "--configs BUSTED" argument to the kvm.sh script. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
This commit creates a plug-in to allow kvm-recheck.sh to process non-rcutorture console output. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
This commit prevents the results directory from being created for dryruns. However, a script generated from a dryrun will create the results directory should it be run. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org
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- 19 2月, 2014 14 次提交
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由 Paul E. McKenney 提交于
Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
This commit adds a "(!)" flag after the number of CPUs required by a given test if that test requires more than the available number of CPUs. Note that these flags appear only when the number of CPUs is specified using the --cpus argument. In the absence of a --cpus argument, no tests are flagged. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Running the standard set of rcutorture tests on 24 CPUs results in the following sub-optimal schedule: ----start batch---- TREE07 16 ----start batch---- TREE08 16 SRCU-P 8 ----start batch---- TREE01 8 TREE02 8 TREE03 8 ----start batch---- TREE04 8 TREE05 8 TREE06 8 ----start batch---- SRCU-N 4 TINY01 1 TINY02 1 TREE09 1 If one of the eight-CPU runs were to be moved into the first batch, the test suite would complete in four batches rather than five. This commit therefore uses a greedy algorithm to re-order the test entries so that the sequential batching will produce an optimal schedule in this case: ----start batch---- TREE07 16 SRCU-P 8 ----start batch---- TREE08 16 TREE01 8 ----start batch---- TREE02 8 TREE03 8 TREE04 8 ----start batch---- TREE05 8 TREE06 8 SRCU-N 4 TINY01 1 TINY02 1 TREE09 1 Please note that this is still not an optimal bin-packing algorithm, however, it does produce optimal solutions for most common scenarios. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
This commit fixes handling numbering of multiple runs of the same test so as to disambiguate output. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Actual rcutorture tests take considerable time and machine resources, so it is inconvenient to actually do an rcutorture run when optimizing the bin-packing algorithm. This commit therefore adds a --dryrun argument, which defaults to doing a run, but for which "sched" says to simply print the run schedule and "script" dumps the script without running it. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
The message complains about a build directory when it should instead be complaining about the results directory, so this commit fixes it. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
The rcutorture tests run by default range from using one CPU to using sixteen of them. Therefore, rcutorture testing could be sped up significantly simply by running the kernels in parallel. Building them in parallel is not all that helpful: "make -j" is usually a better bet. So this commit takes a new "--cpus" argument that specifies how many CPUs rcutorture is permitted to use for its parallel runs. The default of zero does sequential runs as before. The bin-packing is minimal, and will be grossly suboptimal for some configurations. However, powers of two work reasonably well. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Both SRCU-P and SRCU-N specify eight CPUs, which results in four iterations for a parallel run on 32 CPUs. This commit reduces SRCU-N to four CPUs (but leaving SRCU-P at eight) to speed up parallel runs, while maintaining essentially the same test coverage. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Currently, most qemu flags are calculated in kvm-test-1-rcu.sh, except that -nographics is set up by kvm.sh. This commit promotes one-stop shopping by consolidating the determination of qemu flags into kvm-test-1-rcu.sh. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Parallel rcutorture runs is valuable on large systems, but it is not a good idea to do (say) five builds in parallel if each build believes it has the whole system at its disposal, especially if the system is shared. It is also bad to restrict the build to (say) a single CPU just because the corresponding rcutorture run uses only a single CPU. This commit therefore adds a kvm-test-1-rcu.sh ability to pause after the build completes, which will allow kvm.sh to do a number of builds serially (with each build thus having the full system at its disposal), then allow the rcutorture runs to proceed in parallel. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Currently, most boot flags are calculated in kvm-test-1-rcu.sh, except that rcutorture.test_no_idle_hz and rcutorture.verbose are set up by kvm.sh. This commit promotes one-stop shopping by consolidating the determination of boot flags into kvm-test-1-rcu.sh. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Although the script name and arguments are logged in the results directory, it is more convenient to see it in the output. This commit therefore adds the output of this information. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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由 Paul E. McKenney 提交于
Sometime problems can manifest themselves as unusually slow grace periods. This commit therefore prints the number of rcutorture updates during the test and the number per second. These statistics are harvested from the config.out and qemu-cmd files, and are silently omitted if these files are not available, as would be the case if there was a build failure or a boot-time hang. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
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- 24 1月, 2014 1 次提交
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由 Kees Cook 提交于
To help avoid an architecture failing to correctly check kernel/user boundaries when handling copy_to_user, copy_from_user, put_user, or get_user, perform some simple tests and fail to load if any of them behave unexpectedly. Specifically, this is to make sure there is a way to notice if things like what was fixed in commit 8404663f ("ARM: 7527/1: uaccess: explicitly check __user pointer when !CPU_USE_DOMAINS") ever regresses again, for any architecture. Additionally, adds new "user" selftest target, which loads this module. Signed-off-by: NKees Cook <keescook@chromium.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Joe Perches <joe@perches.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 04 12月, 2013 20 次提交
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由 Paul E. McKenney 提交于
All of the rcutorture scripts has the usual GPL header, which contains a long-obsolete postal address for FSF. To avoid the need to track the FSF office's movements, this commit substitutes the URL where GPL may be found. Reported-by: NGreg KH <gregkh@linuxfoundation.org> Reported-by: NSteven Rostedt <rostedt@goodmis.org> Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
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由 Paul E. McKenney 提交于
Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
The output of the rcutorture scripts often requires interpretation, so this commit simplifies this interpretation by tagging messages as BUGs (colored red) or WARNINGs (colored yellow). Reported-by: NIngo Molnar <mingo@kernel.org> Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
Repeatedly running a given test, for example, by repeating the name as in "--configs "TREE08 TREE08 TREE08" records the results only of the last run of this test. This is because the earlier results are overwritten by the later results. This commit therefore checks for earlier results, using numbered file extensions to distinguish multiple runs. The earlier example would therefore create directories TREE01, TREE01.2, and TREE01.3. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
The commit causes kvm.sh to invoke kvm-recheck.sh at the end of each run, and causes kvm-recheck.sh to print only the name of the test, not the full path to the corresponding Kconfig file. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
The TREE08 Kconfig fragment does not enable tracing, which is appropriate for its test case. However, this can be inconvenient in cases where TREE08 locates RCU bugs. This commit therefore adds a TREE08-T that differs from TREE08 only in enabling CONFIG_RCU_TRACE. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
This commit adds the --kmake-arg to kvm.sh, which allows passing in things like "V=1" to see the build commands, as well as enabling the CROSS_COMPILE= make macro used for cross-building. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
This commit adds the --no-initrd argument to kvm.sh, which permits initrd to be contained in a root partition specified by the --bootargs argument. Without --no-initrd, the kernel build expects an initrd directory in the same rcutorture directory that contains bin and configs. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
This commits adds the --qemu-args argument to kvm.sh that is required to pass boot devices down through to qemu. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
This commit allows easy specification of trace_event lists, among other things. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
This commit adds --buildonly, which does the builds specified by the --configs argument, but does not boot or test the resulting kernels. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
Don't grab the configuration fragment from the configs directory because it might well have been changed since the test was run. Instead, use the ConfigFragment file that was placed in the results directory. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
As it stands, the default kernel boot parameters generated from the Kconfig fragment will override any supplied with the .boot file that can optionally accompany a Kconfig fragment. Rearrange ordering to permit the specific .boot arguments to override those generated by analyzing the Kconfig fragment. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
This commit expands the checks for what architecture is running to generate additional qemu-system- commands, then uses the resulting qemu-system- command name to choose different qemu arguments as needed for different architectures. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
The --rcu-kvm argument was intended to allow the scripts to live in an alternate location. Unfortunately, this prevents the kvm.sh script from using common functions until after it finished parsing arguments, because it doesn't know where to find them until then. However, "cp -a" and "ln -s" work pretty well, so lack of an --rcu-kvm argument can be easily worked around. This commit therefore removes this argument. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
The qemu -name argument doesn't seem to be useful in this environment, so this commit removes it. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
The task of working out which flavor of qemu to use gets more complex as more types of CPUs are supported. Adding Power makes three in addition to 32-bit and 64-bit x86, so it is time to pull this out into a function. This commit therefore creates an identify_qemu function and also adds a --qemu-cmd command-line argument for the inevitable case where the identify_qemu cannot figure it out. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
The commit uses configcheck.sh from within configinit.sh, replacing the imperfect inline expansion that was there before. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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由 Paul E. McKenney 提交于
This commit drops no-longer-needed diagnostics from the output. Some of them are retained in logfiles, in case they are ever needed. Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
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