Hi Xiaoguang Wang, Am 28.09.2016 um 13:35 schrieb Wang Xiaoguang: > hello, > > On 09/28/2016 07:15 PM, Stefan Priebe - Profihost AG wrote: >> Dear list, >> >> is there any chance anybody wants to work with me on the following issue? > Though I'm also somewhat new to btrfs, but I'd like to. > >> >> BTRFS: space_info 4 has 18446742286429913088 free, is not full >> BTRFS: space_info total=98247376896, used=77036814336, pinned=0, >> reserved=0, may_use=1808490201088, readonly=0 >> >> i get this nearly every day. >> >> Here are some msg collected from today and yesterday from different >> servers: >> | BTRFS: space_info 4 has 18446742182612910080 free, is not full | >> | BTRFS: space_info 4 has 18446742254739439616 free, is not full | >> | BTRFS: space_info 4 has 18446743980225085440 free, is not full | >> | BTRFS: space_info 4 has 18446743619906420736 free, is not full | >> | BTRFS: space_info 4 has 18446743647369576448 free, is not full | >> | BTRFS: space_info 4 has 18446742286429913088 free, is not full >> >> What i tried so far without success: >> - use vanilla 4.8-rc8 kernel >> - use latest vanilla 4.4 kernel >> - use latest 4.4 kernel + patches from holger hoffstaette >> - use clear_cache,space_cache=v2 >> - use clear_cache,space_cache=v1 >> >> But all tries result in ENOSPC after a short period of time doing >> backups. > I also met enospc error in 4.8-rc6 when doing big files create and > delete tests, > for my cases, I have written some patches to fix it. > Would you please apply my patches to have a try: > btrfs: try to satisfy metadata requests when every flush_space() returns > btrfs: try to write enough delalloc bytes when reclaiming metadata space > btrfs: make shrink_delalloc() try harder to reclaim metadata space > You can find them in btrfs mail list.
those are already in the patchset from holger: So i have these in my testing patchset (latest 4.4 kernel + patches from holger hoffstaette): btrfs-20160921-try-to-satisfy-metadata-requests-when-every-flush_space()-returns.patch btrfs-20160921-try-to-write-enough-delalloc-bytes-when-reclaiming-metadata-space.patch btrfs-20160922-make-shrink_delalloc()-try-harder-to-reclaim-metadata-space.patch Greets, Stefan > > Regards, > Xiaoguang Wang >> >> Greets, >> Stefan >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in >> the body of a message to majord...@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> > > > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
