From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Christie Subject: Re: [Bug 10890] Heavy iSCSI traffic triggers memory allocation complaints and system lockup Date: Mon, 21 May 2012 10:59:19 -0500 Message-ID: <4FBA6657.1080808@cs.wisc.edu> References: <20120521154840.51A4611FD17@bugzilla.kernel.org> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="------------050503070902010707080509" Return-path: Received: from sabe.cs.wisc.edu ([128.105.6.20]:48565 "EHLO sabe.cs.wisc.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752146Ab2EUP71 (ORCPT ); Mon, 21 May 2012 11:59:27 -0400 In-Reply-To: <20120521154840.51A4611FD17@bugzilla.kernel.org> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: bugzilla-daemon@bugzilla.kernel.org Cc: linux-scsi@vger.kernel.org This is a multi-part message in MIME format. --------------050503070902010707080509 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 05/21/2012 10:48 AM, bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=10890 > Weird. I am just seeing this bz now. Could you try the patches in this thread https://lkml.org/lkml/2012/5/17/215 a long with the attached patch for iscsi? The patchset is for swap over storage, but because we do not check for that case specifially I think they will allow you to dip into the reserves in your setup. --------------050503070902010707080509 Content-Type: text/plain; charset=UTF-8; name="0001-iscsi-Set-SOCK_MEMALLOC-for-access-to-PFMEMALLOC-res.patch" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename*0="0001-iscsi-Set-SOCK_MEMALLOC-for-access-to-PFMEMALLOC-res.pa"; filename*1="tch" RnJvbSA5MTdkNTNmMTZkMWUyNmIxMmU5MGU1ZTE1ZGY3NmE3YThiZWUzNWU4IE1vbiBTZXAg MTcgMDA6MDA6MDAgMjAwMQpGcm9tOiBNaWtlIENocmlzdGllIDxtaWNoYWVsY0Bjcy53aXNj LmVkdT4KRGF0ZTogVGh1LCAzIE1heSAyMDEyIDEyOjM2OjE4IC0wNTAwClN1YmplY3Q6IFtQ QVRDSCAxLzFdIGlzY3NpOiBTZXQgU09DS19NRU1BTExPQyBmb3IgYWNjZXNzIHRvIFBGTUVN QUxMT0MKIHJlc2VydmVzCgpTZXQgU09DS19NRU1BTExPQyBvbiB0aGUgaXNjc2kgc29ja2V0 IHRvIGFsbG93IGFjY2VzcyB0byBQRk1FTUFMTE9DCnJlc2VydmVzIHRvIHByZXZlbnQgZGVh ZGxvY2suCgpTaWduZWQtb2ZmLWJ5OiBNaWtlIENocmlzdGllIDxtaWNoYWVsY0Bjcy53aXNj LmVkdT4KLS0tCiBkcml2ZXJzL3Njc2kvaXNjc2lfdGNwLmMgfCAgIDE4ICsrKysrKysrKysr KystLS0tLQogMSBmaWxlcyBjaGFuZ2VkLCAxMyBpbnNlcnRpb25zKCspLCA1IGRlbGV0aW9u cygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvc2NzaS9pc2NzaV90Y3AuYyBiL2RyaXZlcnMv c2NzaS9pc2NzaV90Y3AuYwppbmRleCA0NTNhNzQwLi43MzYwZjRjIDEwMDY0NAotLS0gYS9k cml2ZXJzL3Njc2kvaXNjc2lfdGNwLmMKKysrIGIvZHJpdmVycy9zY3NpL2lzY3NpX3RjcC5j CkBAIC0zNzAsMTcgKzM3MCwyNCBAQCBzdGF0aWMgaW5saW5lIGludCBpc2NzaV9zd190Y3Bf eG1pdF9xbGVuKHN0cnVjdCBpc2NzaV9jb25uICpjb25uKQogc3RhdGljIGludCBpc2NzaV9z d190Y3BfcGR1X3htaXQoc3RydWN0IGlzY3NpX3Rhc2sgKnRhc2spCiB7CiAJc3RydWN0IGlz Y3NpX2Nvbm4gKmNvbm4gPSB0YXNrLT5jb25uOwotCWludCByYzsKKwl1bnNpZ25lZCBsb25n IHBmbGFncyA9IGN1cnJlbnQtPmZsYWdzOworCWludCByYyA9IDA7CisKKwljdXJyZW50LT5m bGFncyB8PSBQRl9NRU1BTExPQzsKIAogCXdoaWxlIChpc2NzaV9zd190Y3BfeG1pdF9xbGVu KGNvbm4pKSB7CiAJCXJjID0gaXNjc2lfc3dfdGNwX3htaXQoY29ubik7Ci0JCWlmIChyYyA9 PSAwKQotCQkJcmV0dXJuIC1FQUdBSU47CisJCWlmIChyYyA9PSAwKSB7CisJCQlyYyA9IC1F QUdBSU47CisJCQlicmVhazsKKwkJfQogCQlpZiAocmMgPCAwKQotCQkJcmV0dXJuIHJjOwor CQkJYnJlYWs7CisJCXJjID0gMDsKIAl9CiAKLQlyZXR1cm4gMDsKKwl0c2tfcmVzdG9yZV9m bGFncyhjdXJyZW50LCBwZmxhZ3MsIFBGX01FTUFMTE9DKTsKKwlyZXR1cm4gcmM7CiB9CiAK IC8qCkBAIC02NjUsNiArNjcyLDcgQEAgaXNjc2lfc3dfdGNwX2Nvbm5fYmluZChzdHJ1Y3Qg aXNjc2lfY2xzX3Nlc3Npb24gKmNsc19zZXNzaW9uLAogCXNrLT5za19yZXVzZSA9IDE7CiAJ c2stPnNrX3NuZHRpbWVvID0gMTUgKiBIWjsgLyogRklYTUU6IG1ha2UgaXQgY29uZmlndXJh YmxlICovCiAJc2stPnNrX2FsbG9jYXRpb24gPSBHRlBfQVRPTUlDOworCXNrX3NldF9tZW1h bGxvYyhzayk7CiAKIAlpc2NzaV9zd190Y3BfY29ubl9zZXRfY2FsbGJhY2tzKGNvbm4pOwog CXRjcF9zd19jb25uLT5zZW5kcGFnZSA9IHRjcF9zd19jb25uLT5zb2NrLT5vcHMtPnNlbmRw YWdlOwotLSAKMS43LjcuNgoK --------------050503070902010707080509--