suspend stops working with linux-3.5.3-1-x86_64 kernel

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https://bbs.archlinux.org – Hi,I did my normal update recently, and then my suspend stopped working. The first suspend *would* work, but then the next one would disable the screen, spin down the disks, but then start up again straight away (but with the screen still off) forcing a reboot.The line that was failing the the pm-suspend script was        /usr/lib/pm-utils/pm-functions: line 297: echo: write error: Device or resource busyWhen I downgraded the kernel back to linux-3.4.7-1-x86_64 and suspend started working repeatably again. ahnkle https://bbs.archlinux.org/profile.php?id=52941 (HowTos)