Hi Andi, On Sat, Jun 19, 2010 at 4:09 PM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote: > On Sat, Jun 19, 2010 at 03:43:28PM +0200, Michael Kerrisk wrote: >> Is there a userspace operation to unpoison (i.e., reverse MADV_SOFT_OFFLINE)? > > Yes, but it's only a debugfs interface currently. Okay -- thanks. >> I ask because I wondered if there is something additional to be documented. > > I don't think debugfs needs manpages atm. Okay. I edited your text somewhat. Could you please review the below. Cheers, Michael .TP .BR MADV_SOFT_OFFLINE " (Since Linux 2.6.33) Soft offline the pages in the range specified by .I addr and .IR length . This memory of each page in the specified range is copied to a new page, and the original page is offlined (i.e., no longer used, and taken out of normal memory management). The effect of the .B MADV_SOFT_OFFLINE operation is normally invisible to (i.e., does not change the semantics of) the calling process. This feature is intended for testing of memory error-handling code; it is only available if the kernel was configured with .BR CONFIG_MEMORY_FAILURE . -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>