From: Dan Williams <dan.j.williams@intel.com> To: Matthew Wilcox <willy@infradead.org> Cc: Linux MM <linux-mm@kvack.org>, linux-nvdimm <linux-nvdimm@lists.01.org>, linux-fsdevel <linux-fsdevel@vger.kernel.org>, "Barror, Robert" <robert.barror@intel.com> Subject: Hang / zombie process from Xarray page-fault conversion (bisected) Date: Thu, 7 Mar 2019 22:16:17 -0800 Message-ID: <CAPcyv4hwHpX-MkUEqxwdTj7wCCZCN4RV-L4jsnuwLGyL_UEG4A@mail.gmail.com> (raw) Hi Willy, We're seeing a case where RocksDB hangs and becomes defunct when trying to kill the process. v4.19 succeeds and v4.20 fails. Robert was able to bisect this to commit b15cd800682f "dax: Convert page fault handlers to XArray". I see some direct usage of xa_index and wonder if there are some more pmd fixups to do? Other thoughts?
next reply index Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-03-08 6:16 Dan Williams [this message] 2019-03-11 15:09 ` Matthew Wilcox 2019-03-12 3:35 ` Dan Williams 2019-03-12 4:37 ` Dave Chinner 2019-03-12 16:53 ` Barror, Robert 2019-03-14 7:34 ` Dan Williams 2019-03-15 2:26 ` Dave Chinner 2019-03-15 2:46 ` Dan Williams 2019-05-04 19:42 ` Matthew Wilcox
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