X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=NEWS;h=1e92f468e1b2a9404f9bf3d4416114506e5f0944;hp=e743b11844e9d68bc78a93bc733641ea1456f537;hb=52934a60c447ae78873b07a01b7fa25e60c86fe4;hpb=f07996885dab45102492d7f16e7e2997e264c725 diff --git a/NEWS b/NEWS index e743b1184..1e92f468e 100644 --- a/NEWS +++ b/NEWS @@ -1,22 +1,257 @@ +udev 157 +======== +Bugfixes. + +The option --debug-trace and the environemnt variable UDEVD_MAX_CHILDS= +was removed from udevd. + +Udevd now parses the kernel commandline for the following variables: + udev.log-priority= + udev.children-max= + udev.exec-delay= +to help debuging coldplug setups where the loading of a kernel +module crashes the system. + +The subdirectory in the source tree rules/packages has been renamed to +rules/arch, anc contains only architecture specific rules now. + +udev 156 +======== +Bugfixes. + +udev 155 +======== +Bugfixes. + +Now the udev daemon itself, does on startup: + - copy the content of /lib/udev/devices to /dev + - create the standard symlinks like /dev/std{in,out,err}, + /dev/core, /dev/fd, ... + - use static node information provided by kernel modules + and creates these nodes to allow module on-demand loading + - possibly apply permissions to all ststic nodes from udev + rules which are annotated to match a static node + +The default mode for a device node is 0600 now to match the kernel +created devtmpfs defaults. If GROUP= is specified and no MODE= is +given the default will be 0660. + +udev 154 +======== +Bugfixes. + +Udev now gradually starts to pass control over the primary device nodes +and their names to the kernel, and will in the end only manage the +permissions of the node, and possibly create additional symlinks. +As a first step NAME="" will be ignored, and NAME= setings with names +other than the kernel provided name will result in a logged warning. +Kernels that don't provide device names, or devtmpfs is not used, will +still work as they did before, but it is strongly recommended to use +only the same names for the primary device node as the recent kernel +provides for all devices. + +udev 153 +======== +Fix broken firmware loader search path. + +udev 152 +======== +Bugfixes. + +"udevadm trigger" defaults to "change" events now instead of "add" +events. The "udev boot script" might need to add "--action=add" to +the trigger command if not already there, in case the initial coldplug +events are expected as "add" events. + +The option "all_partitons" was removed from udev. This should not be +needed for usual hardware. Udev can not safely make assumptions +about non-existing partition major/minor numbers, and therefore no +longer provide this unreliable and unsafe option. + +The option "ignore_remove" was removed from udev. With devtmpfs +udev passed control over device nodes to the kernel. This option +should not be needed, or can not work as advertised. Neither +udev nor the kernel will remove device nodes which are copied from +the /lib/udev/devices/ directory. + +All "add|change" matches are replaced by "!remove" in the rules and +in the udev logic. All types of events will update possible symlinks +and permissions, only "remove" is handled special now. + +The modem modeswitch extra was removed and the external usb_modeswitch +program should be used instead. + +New and fixed keymaps. + +udev 151 +======== +Bugfixes. + +udev 150 +======== +Bugfixes. + +Kernels with SYSFS_DEPRECATED=y are not supported since a while. Many users +depend on the current sysfs layout and the information not available in the +deprecated layout. All remaining support for the deprecated sysfs layout is +removed now. + +udev 149 +======== +Fix for a possible endless loop in the new input_id program. + +udev 148 +======== +Bugfixes. + +The option "ignore_device" does no longer exist. There is no way to +ignore an event, as libudev events can not be suppressed by rules. +It only prevented RUN keys from being executed, which results in an +inconsistent behavior in current setups. + +BUS=, SYSFS{}=, ID= are long deprecated and should be SUBSYSTEM(S)=, +ATTR(S){}=, KERNEL(S)=. It will cause a warning once for every rule +file from now on. + +The support for the deprecated IDE devices has been removed from the +default set of rules. Distros who still care about non-libata drivers +need to add the rules to the compat rules file. + +The ID_CLASS property on input devices has been replaced by the more accurate +set of flags ID_INPUT_{KEYBOARD,KEY,MOUSE,TOUCHPAD,TABLET,JOYSTICK}. These are +determined by the new "input_id" prober now. Some devices, such as touchpads, +can have several classes. So if you previously had custom udev rules which e. g. +checked for ENV{ID_CLASS}=="kbd", you need to replace this with +ENV{ID_INPUT_KEYBOARD}=="?*". + +udev 147 +======== +Bugfixes. + +To support DEVPATH strings larger than the maximum file name length, the +private udev database format has changed. If some software still reads the +private files in /dev/.udev/, which it shouldn't, now it's time to fix it. +Please do not port anything to the new format again, everything in /dev/.udev +is and always was private to udev, and may and will change any time without +prior notice. + +Multiple devices claiming the same names in /dev are limited to symlinks +only now. Mixing identical symlink names and node names is not supported. +This reduces the amount of data in the database significantly. + +NAME="%k" causes a warning now. It's is and always was completely superfluous. +It will break kernel supplied DEVNAMEs and therefore it needs to be removed +from all rules. + +Most NAME= instructions got removed. Kernel 2.6.31 supplies the needed names +if they are not the default. To support older kernels, the NAME= rules need to +be added to the compat rules file. + +Symlinks to udevadm with the old command names are no longer resolved to +the udevadm commands. + +The udev-acl tool got adopted to changes in ConsoleKit. Version 0.4.1 is +required now. + +The option "last_rule" does no longer exist. Its use breaks too many +things which expect to be run from independent later rules, and is an idication +that something needs to be fixed properly instead. + +The gudev API is no longer marked as experimental, +G_UDEV_API_IS_SUBJECT_TO_CHANGE is no longer needed. The gudev introspection +is enabled by default now. Various projects already depend on introspection +information to bind dynamic languages to the gudev interfaces. + +udev 146 +======== +Bugfixes. + +The udevadm trigger "--retry-failed" option, which is replaced since quite +a while by "--type=failed" is removed. + +The failed tracking was not working at all for a few releases. The RUN +option "ignore_error" is replaced by a "fail_event_on_error" option, and the +default is not to track any failing RUN executions. + +New keymaps, new modem, hid2hci updated. + +udev 145 +======== +Fix possible crash in udevd when worker processes are busy, rules are +changed at the same time, and workers get killed to reload the rules. + +udev 144 +======== +Bugfixes. + +Properties set with ENV{.FOO}="bar" are marked private by starting the +name with a '.'. They will not be stored in the database, and not be +exported with the event. + +Firmware files are looked up in: + /lib/firmware/updates/$(uname -r) + /lib/firmware/updates + /lib/firmware/$(uname -r) + /lib/firmware" +now. + +ATA devices switched the property from ID_BUS=scsi to ID_BUS=ata. +ata_id, instead of scsi_id, is the default tool now for ATA devices. + +udev 143 +======== +Bugfixes. + +The configure options have changed because another library needs to be +installed in a different location. Instead of exec_prefix and udev_prefix, +libdir, rootlibdir and libexecdir are used. The Details are explained in +the README file. + +Event processes now get re-used after they handled an event. This reduces +the number of forks and the pressure on the CPU significantly, because +cloned event processes no longer cause page faults in the main daemon. +After the events have settled, a few worker processes stay around for +future events, all others get cleaned up. + +To be able to use signalfd(), udev depends on kernel version 2.6.25 now. +Also inotify support is mandatory now to run udev. + +The format of the queue exported by the udev damon has changed. There is +no longer a /dev/.udev/queue/ directory. The current event queue can be +accessed with udevadm settle and libudedv. + +Libudev does not have the unstable API header anymore. From now on, +incompatible changes will be handled by bumping the library major version. + +To build udev from the git tree gtk-doc is needed now. The tarballs will +build without it and contain the pre-built documentation. An online copy +is available here: + http://www.kernel.org/pub/linux/utils/kernel/hotplug/libudev/ + +The tools from the udev-extras repository have been merged into the main +udev repository. Some of the extras have larger external dependencies, and +they can be disabled with the configure switch --disable-extras. + udev 142 ======== Bugfixes. -The program vol_id is removed from the repository and blkid from the -latest util-linux-ng package replaces it. Persisten disk links for -label and uuid depend on the util-linux-ng version of blkid now. Older -versions can not be used with udev. +The program vol_id and the library libvolume_id are removed from the +repository. Libvolume_id is merged with libblkid from the util-linux-ng +package. Persistent disk links for label and uuid depend on the +util-linux-ng version (2.15) of blkid now. Older versions of blkid +can not be used with udev. Libudev allows to subscribe to udev events. To prevent unwanted messages to be delivered, and waking up the subscribing process, a filter can be installed, to drop messages inside a kernel socket filter. The filters match on the : properties of the device. This is part of the ongoing effort to replace HAL, and switch current -users over to directly use libudev, or for higher-level services use the -specialized D-Bus interface of a DeviceKit service. +users over to directly use libudev. Libudev is still marked as experimental, and its interface might -change if needed, but no major changes of the currently exported interface -are expected anymore, and a first stable release should happen soon. +eventually change if needed, but no major changes of the currently exported +interface are expected anymore, and a first stable release should happen +soon. A too old kernel (2.6.21) or a kernel with CONFIG_SYSFS_DEPRECATED is not supported since while and udevd will log an error message at