http://bugzilla.suse.com/show_bug.cgi?id=1104824 Manfred Härtel changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |Manfred.Haertel@rz-online.d | |e -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c2 --- Comment #2 from Jürgen Groß --- (In reply to Manfred Härtel from comment #1)

As the problem only occurs when the first fragment is larger than the RX_COPY_THRESHOLD, I had the idea to enlarge RX_COPY_THRESHOLD to the maximum size of a fragment:

#define RX_COPY_THRESHOLD 4096

There is no explanation in the source code why RX_COPY_THRESHOLD is only 256 at the moment. May be someone can explain.

I guess the main problem with setting RX_COPY_THRESHOLD to 4096 is that allocation of each RX buffer needs more than one page of memory. Only with RX_COPY_THRESHOLD smaller than 3776 bytes (PAGE_SIZE - sizeof(struct skb_shared_info)) one page will be able to hold the needed data.

However, my first tests with the enlarged value of 4096 were successful and free of side effects.

I guess with some memory pressure and long system-up times the picture might change. I'm looking at two possible approaches in the moment: Either I'd like to set the max number of slots depending on the backend version (for old backends one less than for new backends), but I guess this is a rather fragile solution. What I would like better is to replace the BUG_ON() in xennet_fill_frags() with a way to fail the receive operation gracefully. This could be made less probable by upping RX_COPY_THRESHOLD to a value like above mentioned 3776. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c4 Manfred Härtel changed: What |Removed |Added ---------------------------------------------------------------------------- Flags|needinfo?(Manfred.Haertel@r | |z-online.de) | --- Comment #4 from Manfred Härtel --- Yes, as expected, the patch avoids a crash. As also expected, there are retransmission in the case when "too much" fragments arrived, but this is the same situation as when the (now gone) "Too many slots" message appeared. So I think the patch solves the problem. I will continue to use it and in the unlikely event of a side effect I will report it. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c6 --- Comment #6 from Manfred Härtel --- No side effects of your patch until now, as expected. Thank YOU for your competent reactions and for the patch. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c8 --- Comment #8 from Swamp Workflow Management --- SUSE-SU-2018:2980-1: An update that solves 13 vulnerabilities and has 134 fixes is now available. Category: security (important) Bug References: 1012382,1043912,1044189,1046302,1046306,1046307,1046543,1050244,1051510,1054914,1055014,1055117,1058659,1060463,1064232,1065600,1065729,1068032,1069138,1071995,1077761,1077989,1078720,1080157,1082555,1083647,1083663,1084332,1085042,1085262,1086282,1089663,1090528,1092903,1093389,1094244,1095344,1096748,1097105,1098459,1098822,1099922,1099999,1100000,1100001,1100132,1101557,1101669,1102346,1102870,1102875,1102877,1102879,1102882,1102896,1103363,1103387,1103421,1103948,1103949,1103961,1104172,1104353,1104824,1105247,1105524,1105536,1105597,1105603,1105672,1105907,1106007,1106016,1106105,1106121,1106170,1106178,1106191,1106229,1106230,1106231,1106233,1106235,1106236,1106237,1106238,1106240,1106291,1106297,1106333,1106369,1106426,1106427,1106464,1106509,1106511,1106594,1106636,1106688,1106697,1106743,1106779,1106800,1106890,1106891,1106892,1106893,1106894,1106896,1106897,1106898,1106899,1106900,1106901,1106902,1106903,1106905,1106906,1106948,1106995,1107008,1107060,1107061,1107065,110707 3,1107074,1107078,1107265,1107319,1107320,1107522,1107535,1107689,1107735,1107756,1107870,1107924,1107945,1107966,1108010,1108093,1108243,1108520,1108870,1109269,1109511,920344 CVE References: CVE-2018-10938,CVE-2018-10940,CVE-2018-1128,CVE-2018-1129,CVE-2018-12896,CVE-2018-13093,CVE-2018-13094,CVE-2018-13095,CVE-2018-14613,CVE-2018-14617,CVE-2018-16658,CVE-2018-6554,CVE-2018-6555 Sources used: SUSE Linux Enterprise Workstation Extension 15 (src): kernel-default-4.12.14-25.19.1 SUSE Linux Enterprise Module for Legacy Software 15 (src): kernel-default-4.12.14-25.19.1 SUSE Linux Enterprise Module for Development Tools 15 (src): kernel-docs-4.12.14-25.19.1, kernel-obs-build-4.12.14-25.19.1, kernel-source-4.12.14-25.19.1, kernel-syms-4.12.14-25.19.1, kernel-vanilla-4.12.14-25.19.1 SUSE Linux Enterprise Module for Basesystem 15 (src): kernel-default-4.12.14-25.19.1, kernel-source-4.12.14-25.19.1, kernel-zfcpdump-4.12.14-25.19.1 SUSE Linux Enterprise High Availability 15 (src): kernel-default-4.12.14-25.19.1 -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c10 --- Comment #10 from Swamp Workflow Management --- This is an autogenerated message for OBS integration: This bug (1104824) was mentioned in https://build.opensuse.org/request/show/640014 15.0 / kernel-source -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c13 --- Comment #13 from Swamp Workflow Management --- SUSE-SU-2018:3961-1: An update that solves 22 vulnerabilities and has 286 fixes is now available. Category: security (important) Bug References: 1012382,1031392,1043912,1044189,1046302,1046305,1046306,1046307,1046540,1046543,1050244,1050319,1050536,1050540,1051510,1054914,1055014,1055117,1055120,1058659,1060463,1061840,1065600,1065729,1066674,1067126,1067906,1068032,1069138,1071995,1076830,1077761,1077989,1078720,1079524,1080157,1082519,1082555,1083647,1083663,1084760,1084831,1085030,1085042,1085262,1086282,1086283,1086288,1086327,1089663,1090078,1091800,1092903,1094244,1094825,1095344,1095805,1096748,1097105,1097583,1097584,1097585,1097586,1097587,1097588,1098459,1098782,1098822,1099125,1099922,1099999,1100001,1100132,1101480,1101557,1101669,1102346,1102495,1102517,1102715,1102870,1102875,1102877,1102879,1102881,1102882,1102896,1103269,1103308,1103356,1103363,1103387,1103405,1103421,1103543,1103587,1103636,1103948,1103949,1103961,1104172,1104353,1104482,1104683,1104731,1104824,1104888,1104890,1105025,1105190,1105247,1105292,1105322,1105355,1105378,1105396,1105428,1105467,1105524,1105536,1105597,1105603,1105672,1105731,110579 5,1105907,1106007,1106016,1106105,1106110,1106121,1106170,1106178,1106229,1106230,1106231,1106233,1106235,1106236,1106237,1106238,1106240,1106291,1106297,1106333,1106369,1106427,1106464,1106509,1106511,1106594,1106636,1106688,1106697,1106779,1106800,1106838,1106890,1106891,1106892,1106893,1106894,1106896,1106897,1106898,1106899,1106900,1106901,1106902,1106903,1106905,1106906,1106948,1106995,1107008,1107060,1107061,1107065,1107074,1107207,1107319,1107320,1107522,1107535,1107685,1107689,1107735,1107756,1107783,1107829,1107870,1107924,1107928,1107945,1107947,1107966,1108010,1108093,1108096,1108170,1108241,1108243,1108260,1108281,1108323,1108377,1108399,1108468,1108520,1108823,1108841,1108870,1109151,1109158,1109217,1109244,1109269,1109330,1109333,1109336,1109337,1109511,1109603,1109739,1109772,1109784,1109806,1109818,1109907,1109915,1109919,1109951,1109979,1109992,1110006,1110096,1110301,1110363,1110538,1110561,1110639,1110642,1110643,1110644,1110645,1110646,1110647,1110649,1110650,111 1028,1111040,1111076,1111506,1111806,1111819,1111830,1111834,1111841,1111870,1111901,1111904,1111921,1111928,1111983,1112170,1112208,1112219,1112246,1112372,1112514,1112554,1112708,1112710,1112711,1112712,1112713,1112731,1112732,1112733,1112734,1112735,1112736,1112738,1112739,1112740,1112741,1112743,1112745,1112746,1112878,1112894,1112899,1112902,1112903,1112905,1112906,1112907,1113257,1113284,1113295,1113408,1113667,1113722,1113751,1113780,1113972,1114279,971975 CVE References: CVE-2017-16533,CVE-2017-18224,CVE-2018-10902,CVE-2018-10938,CVE-2018-10940,CVE-2018-1128,CVE-2018-1129,CVE-2018-12896,CVE-2018-13093,CVE-2018-13095,CVE-2018-14613,CVE-2018-14617,CVE-2018-14633,CVE-2018-15572,CVE-2018-16658,CVE-2018-17182,CVE-2018-18386,CVE-2018-18445,CVE-2018-18710,CVE-2018-6554,CVE-2018-6555,CVE-2018-9363 Sources used: SUSE Linux Enterprise Module for Public Cloud 15 (src): kernel-azure-4.12.14-5.16.1, kernel-source-azure-4.12.14-5.16.1, kernel-syms-azure-4.12.14-5.16.1 -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c16 --- Comment #16 from Swamp Workflow Management --- SUSE-SU-2018:4069-1: An update that solves 7 vulnerabilities and has 184 fixes is now available. Category: security (important) Bug References: 1051510,1055120,1061840,1065600,1065729,1066674,1067906,1068273,1076830,1078248,1079524,1082555,1082653,1083647,1084760,1084831,1085535,1086196,1089350,1091800,1094825,1095805,1097755,1100132,1103356,1103925,1104124,1104731,1104824,1105025,1105428,1106105,1106110,1106237,1106240,1107256,1107385,1107866,1108377,1108468,1109330,1109739,1109772,1109806,1109818,1109907,1109911,1109915,1109919,1109951,1110006,1110998,1111040,1111062,1111174,1111506,1111696,1111809,1111921,1111983,1112128,1112170,1112173,1112208,1112219,1112221,1112246,1112372,1112514,1112554,1112708,1112710,1112711,1112712,1112713,1112731,1112732,1112733,1112734,1112735,1112736,1112738,1112739,1112740,1112741,1112743,1112745,1112746,1112878,1112894,1112899,1112902,1112903,1112905,1112906,1112907,1112963,1113257,1113284,1113295,1113408,1113412,1113501,1113667,1113677,1113722,1113751,1113769,1113780,1113972,1114015,1114178,1114279,1114385,1114576,1114577,1114578,1114579,1114580,1114581,1114582,1114583,1114584,1114585,111483 9,1115074,1115269,1115431,1115433,1115440,1115567,1115709,1115976,1116183,1116692,1116693,1116698,1116699,1116700,1116701,1116862,1116863,1116876,1116877,1116878,1116891,1116895,1116899,1116950,1117168,1117172,1117174,1117181,1117184,1117188,1117189,1117349,1117561,1117788,1117789,1117790,1117791,1117792,1117794,1117795,1117796,1117798,1117799,1117801,1117802,1117803,1117804,1117805,1117806,1117807,1117808,1117815,1117816,1117817,1117818,1117819,1117820,1117821,1117822,1118102,1118136,1118137,1118138,1118140,1118152,1118316 CVE References: CVE-2017-16533,CVE-2017-18224,CVE-2018-18281,CVE-2018-18386,CVE-2018-18445,CVE-2018-18710,CVE-2018-19824 Sources used: SUSE Linux Enterprise Workstation Extension 12-SP4 (src): kernel-default-4.12.14-95.3.1 SUSE Linux Enterprise Software Development Kit 12-SP4 (src): kernel-docs-4.12.14-95.3.1, kernel-obs-build-4.12.14-95.3.2 SUSE Linux Enterprise Server 12-SP4 (src): kernel-default-4.12.14-95.3.1, kernel-source-4.12.14-95.3.1, kernel-syms-4.12.14-95.3.1 SUSE Linux Enterprise High Availability 12-SP4 (src): kernel-default-4.12.14-95.3.1 SUSE Linux Enterprise Desktop 12-SP4 (src): kernel-default-4.12.14-95.3.1, kernel-source-4.12.14-95.3.1, kernel-syms-4.12.14-95.3.1 -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c18 --- Comment #18 from Swamp Workflow Management --- openSUSE-SU-2018:4133-1: An update that solves one vulnerability and has 112 fixes is now available. Category: security (important) Bug References: 1051510,1055120,1061840,1065600,1065729,1068273,1078248,1082555,1082653,1083647,1085535,1089350,1097755,1104824,1105428,1106105,1106237,1106240,1107256,1107385,1107866,1108468,1109772,1109806,1110006,1110998,1111062,1111174,1111183,1111696,1111809,1112963,1113295,1113412,1113501,1113677,1113722,1113769,1113780,1114015,1114178,1114279,1114385,1114576,1114577,1114578,1114580,1114581,1114582,1114584,1114839,1115074,1115269,1115431,1115433,1115440,1115567,1115709,1115976,1116692,1116693,1116698,1116699,1116700,1116701,1116862,1116863,1116876,1116877,1116878,1116891,1116895,1116899,1116950,1117168,1117172,1117174,1117181,1117184,1117188,1117189,1117349,1117561,1117788,1117789,1117790,1117791,1117792,1117794,1117795,1117796,1117798,1117799,1117801,1117802,1117803,1117804,1117805,1117806,1117807,1117808,1117815,1117816,1117817,1117818,1117819,1117820,1117821,1117822,1118136,1118137,1118138,1118140 CVE References: CVE-2018-18281 Sources used: openSUSE Leap 15.0 (src): kernel-debug-4.12.14-lp150.12.28.1, kernel-default-4.12.14-lp150.12.28.1, kernel-docs-4.12.14-lp150.12.28.1, kernel-kvmsmall-4.12.14-lp150.12.28.1, kernel-obs-build-4.12.14-lp150.12.28.1, kernel-obs-qa-4.12.14-lp150.12.28.1, kernel-source-4.12.14-lp150.12.28.1, kernel-syms-4.12.14-lp150.12.28.1, kernel-vanilla-4.12.14-lp150.12.28.1 -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c23 --- Comment #23 from Swamp Workflow Management --- SUSE-SU-2019:0222-1: An update that solves 13 vulnerabilities and has 258 fixes is now available. Category: security (important) Bug References: 1024718,1046299,1050242,1050244,1051510,1055120,1055121,1055186,1058115,1060463,1065600,1065729,1068032,1068273,1074562,1074578,1074701,1075006,1075419,1075748,1078248,1079935,1080039,1082387,1082555,1082653,1083647,1085535,1086282,1086283,1086423,1087082,1087084,1087939,1087978,1088386,1089350,1090888,1091405,1094244,1097593,1097755,1102055,1102875,1102877,1102879,1102882,1102896,1103257,1104353,1104427,1104824,1104967,1105168,1106105,1106110,1106237,1106240,1106615,1106913,1107207,1107256,1107385,1107866,1108270,1108468,1109272,1109772,1109806,1110006,1110558,1110998,1111062,1111174,1111188,1111469,1111696,1111795,1111809,1112128,1112963,1113295,1113412,1113501,1113677,1113722,1113769,1114015,1114178,1114279,1114385,1114576,1114577,1114578,1114579,1114580,1114581,1114582,1114583,1114584,1114585,1114648,1114839,1114871,1115074,1115269,1115431,1115433,1115440,1115567,1115709,1115976,1116040,1116183,1116336,1116692,1116693,1116698,1116699,1116700,1116701,1116803,1116841,1116862,111686 3,1116876,1116877,1116878,1116891,1116895,1116899,1116950,1117115,1117162,1117165,1117168,1117172,1117174,1117181,1117184,1117186,1117188,1117189,1117349,1117561,1117656,1117788,1117789,1117790,1117791,1117792,1117794,1117795,1117796,1117798,1117799,1117801,1117802,1117803,1117804,1117805,1117806,1117807,1117808,1117815,1117816,1117817,1117818,1117819,1117820,1117821,1117822,1117953,1118102,1118136,1118137,1118138,1118140,1118152,1118215,1118316,1118319,1118320,1118428,1118484,1118505,1118752,1118760,1118761,1118762,1118766,1118767,1118768,1118769,1118771,1118772,1118773,1118774,1118775,1118787,1118788,1118798,1118809,1118962,1119017,1119086,1119212,1119322,1119410,1119714,1119749,1119804,1119946,1119947,1119962,1119968,1119974,1120036,1120046,1120053,1120054,1120055,1120058,1120088,1120092,1120094,1120096,1120097,1120173,1120214,1120223,1120228,1120230,1120232,1120234,1120235,1120238,1120594,1120598,1120600,1120601,1120602,1120603,1120604,1120606,1120612,1120613,1120614,1120615,112 0616,1120617,1120618,1120620,1120621,1120632,1120633,1120743,1120954,1121017,1121058,1121263,1121273,1121477,1121483,1121599,1121621,1121714,1121715,1121973,1122019,1122292 CVE References: CVE-2017-5753,CVE-2018-12232,CVE-2018-14625,CVE-2018-16862,CVE-2018-16884,CVE-2018-18281,CVE-2018-18397,CVE-2018-19407,CVE-2018-19824,CVE-2018-19854,CVE-2018-19985,CVE-2018-20169,CVE-2018-9568 Sources used: SUSE Linux Enterprise Server 12-SP4 (src): kernel-azure-4.12.14-6.6.2, kernel-source-azure-4.12.14-6.6.2, kernel-syms-azure-4.12.14-6.6.2 -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.suse.com/show_bug.cgi?id=1104824 http://bugzilla.suse.com/show_bug.cgi?id=1104824#c25 --- Comment #25 from Swamp Workflow Management --- SUSE-SU-2019:0224-1: An update that solves 13 vulnerabilities and has 253 fixes is now available. Category: security (important) Bug References: 1024718,1046299,1050242,1050244,1051510,1055120,1055121,1055186,1058115,1060463,1061840,1065600,1065729,1068273,1078248,1079935,1082387,1082555,1082653,1083647,1085535,1086196,1086282,1086283,1086423,1087978,1088386,1089350,1090888,1091405,1091800,1094244,1097593,1097755,1100132,1102875,1102877,1102879,1102882,1102896,1103257,1103356,1103925,1104124,1104353,1104427,1104824,1104967,1105168,1105428,1106105,1106110,1106237,1106240,1106615,1106913,1107256,1107385,1107866,1108270,1108468,1109272,1109772,1109806,1110006,1110558,1110998,1111040,1111062,1111174,1111183,1111188,1111469,1111696,1111795,1111809,1111921,1112878,1112963,1113295,1113408,1113412,1113501,1113667,1113677,1113722,1113751,1113769,1113780,1113972,1114015,1114178,1114279,1114385,1114576,1114577,1114578,1114579,1114580,1114581,1114582,1114583,1114584,1114585,1114839,1114871,1115074,1115269,1115431,1115433,1115440,1115567,1115709,1115976,1116040,1116183,1116336,1116692,1116693,1116698,1116699,1116700,1116701,1116803,111684 1,1116862,1116863,1116876,1116877,1116878,1116891,1116895,1116899,1116950,1117115,1117162,1117165,1117168,1117172,1117174,1117181,1117184,1117186,1117188,1117189,1117349,1117561,1117656,1117788,1117789,1117790,1117791,1117792,1117794,1117795,1117796,1117798,1117799,1117801,1117802,1117803,1117804,1117805,1117806,1117807,1117808,1117815,1117816,1117817,1117818,1117819,1117820,1117821,1117822,1117953,1118102,1118136,1118137,1118138,1118140,1118152,1118215,1118316,1118319,1118428,1118484,1118505,1118752,1118760,1118761,1118762,1118766,1118767,1118768,1118769,1118771,1118772,1118773,1118774,1118775,1118798,1118809,1118962,1119017,1119086,1119212,1119322,1119410,1119714,1119749,1119804,1119946,1119962,1119968,1120036,1120046,1120053,1120054,1120055,1120058,1120088,1120092,1120094,1120096,1120097,1120173,1120214,1120223,1120228,1120230,1120232,1120234,1120235,1120238,1120594,1120598,1120600,1120601,1120602,1120603,1120604,1120606,1120612,1120613,1120614,1120615,1120616,1120617,1120618,112 0620,1120621,1120632,1120633,1120743,1120954,1121017,1121058,1121263,1121273,1121477,1121483,1121599,1121621,1121714,1121715,1121973 CVE References: CVE-2018-12232,CVE-2018-14625,CVE-2018-16862,CVE-2018-16884,CVE-2018-18281,CVE-2018-18397,CVE-2018-18710,CVE-2018-19407,CVE-2018-19824,CVE-2018-19854,CVE-2018-19985,CVE-2018-20169,CVE-2018-9568 Sources used: SUSE Linux Enterprise Workstation Extension 15 (src): kernel-default-4.12.14-25.28.1 SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 (src): kernel-default-4.12.14-25.28.1, kernel-docs-4.12.14-25.28.1, kernel-obs-qa-4.12.14-25.28.1 SUSE Linux Enterprise Module for Live Patching 15 (src): kernel-default-4.12.14-25.28.1, kernel-livepatch-SLE15_Update_8-1-1.3.1 SUSE Linux Enterprise Module for Legacy Software 15 (src): kernel-default-4.12.14-25.28.1 SUSE Linux Enterprise Module for Development Tools 15 (src): kernel-docs-4.12.14-25.28.1, kernel-obs-build-4.12.14-25.28.1, kernel-source-4.12.14-25.28.1, kernel-syms-4.12.14-25.28.1, kernel-vanilla-4.12.14-25.28.1 SUSE Linux Enterprise Module for Basesystem 15 (src): kernel-default-4.12.14-25.28.1, kernel-source-4.12.14-25.28.1, kernel-zfcpdump-4.12.14-25.28.1 SUSE Linux Enterprise High Availability 15 (src): kernel-default-4.12.14-25.28.1 -- You are receiving this mail because: You are on the CC list for the bug.