Rafael J. Wysocki wrote: > On Wednesday, 21 of November 2007, Franck Bui-Huu wrote: >> Rafael J. Wysocki wrote: >>> The second one is intended to fix the APM emulation breakage caused before >>> 2.6.23, but unfortunately I can't test it. >> Why not ? >> >> Just hack Kconfig to be able to select this driver on x86 architecture >> and it should work fine, no ? > > Well, I'm afraid I have no suitable userland here ... > I don't have either. Anyway I just verified that the current code is broken. I put 2 processes waiting for a suspend evetn by reading the /dev/apm_bios device and a third process that does the suspend event by doing an ioctl() on the apm device. The system doesn't suspend (the kernel dumped a list of the current tasks, instead of printing "Freezing of tasks failed after..." BTW) and eventually the third process exits with an incorrect value: -EINTR. Applying your patch makes the previous test case work. I also discovered that s2ram doesn't work on my laptop and had to use standby suspend. I'll try to find out why. Franck _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
