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Diffstat (limited to 'tests/ubi-tests/README.udev')
| -rw-r--r-- | tests/ubi-tests/README.udev | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/tests/ubi-tests/README.udev b/tests/ubi-tests/README.udev deleted file mode 100644 index 06e71d3..0000000 --- a/tests/ubi-tests/README.udev +++ /dev/null @@ -1,25 +0,0 @@ -There is a problem with udev: when a volume is created, there is a delay -before corresponding /dev/ubiX_Y device node is created by udev, so some -tests fail because of this. The symptom is error messages like -"cannot open /dev/ubi0_0". - -One possible solution of this problem is to pre-create UBI device and volume -nodes. There is even a script which may be used for this in ubi-utils/scripts/. -But this is not enough because udev will still remove and re-create the nodes -and tests will still fail. So you need to stop removing device nodes using -the following udev rule: - - KERNEL=="ubi*_*", ACTION=="remove", OPTIONS+="ignore_device" - -In our Ubuntu distribution we put that to new file: -/etc/udev/rules.d/50-local.rules - -Another possibility is to call udevsettle utility in libubi after the volume -has been created See src/libubi.c - the call is compiled in only if -UDEV_SETTLE_HACK is defined. This is anyway an ugly hack, but works, although -makes the tests slower. Suggestions are welcome. - -So, if you have udevsettel unility in your system, you do not have to do -anyting, and the tests should work, because we compile libubi with -UDEV_SETTLE_HACK. Otherwise, you should remove -D UDEV_SETTLE_HACK -from the makefile and pre-create UBI device nodes. |