Messages in this thread | | | From | Linus Walleij <> | Date | Mon, 23 Oct 2017 14:16:40 +0200 | Subject | Re: 4.14-rc2 on thinkpad x220: out of memory when inserting mmc card |
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On Mon, Oct 23, 2017 at 11:31 AM, Pavel Machek <pavel@ucw.cz> wrote:
>> > Thinkpad X220... how do I tell if I was using them? I believe so, >> > because I uncovered bug in them before. >> >> You are certainly using bounce buffers. What does lspci -knn show? > > Here is the output: > 0d:00.0 System peripheral [0880]: Ricoh Co Ltd PCIe SDXC/MMC Host Controller [1180:e823] (rev 07) > Subsystem: Lenovo Device [17aa:21da] > Kernel driver in use: sdhci-pci
So that is a Ricoh driver, one of the few that was supposed to benefit from bounce buffers.
Except that if you actually turned it on: > [10994.302196] kworker/2:1: page allocation failure: order:4, so it doesn't have enough memory to use these bounce buffers anyway.
I'm now feel it was the right thing to delete them.
I assume the problem doesn't appear in later -rc:s am I right?
Yours, Linus Walleij
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