From: Deak, Imre Subject: Re: 4.9-rc1: [TMP_] ACPI namespace lookup failure, AE_ALREADY_EXISTS On ti, 2016-10-25 at 04:14 +0300, Zheng, Lv wrote: > Hi, Imre > > I think this is the root cause fix: > https://github.com/zetalog/linux/commit/108009d0 > Which seems to be an old trap triggered by the good fix. > > Could you give the fix commit a try? > It’s better to use this branch, where more improvements are included: > git clone linux-acpica https://github.com/zetalog/linux > git branch acpica-lock linux-acpica/acpica-lock > git checkout acpica-lock Yes, with the above branch I couldn't reproduce the problem during suspend/resume while reverting 108009d0 made the problem reappear.