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Tony Stinson Author

Level 1

25 points

Dovecot Repeatedly Crashing on Mavericks Server

Dovecot is repeatedly crashing on Mavericks server. The process that is crashing does not seem to effect the mail server's ability to send/receive mail.

I pasted the log below.

Any suggestions to resolve this issue?

Tony

___________

Process: auth [63596]

Path: /Applications/Server.app/Contents/ServerRoot/usr/libexec/dovecot/auth

Identifier: auth

Version: 294

Code Type: X86-64 (Native)

Parent Process: dovecotd [378]

Responsible: dovecotd [378]

User ID: 214

Date/Time: 2014-08-06 09:26:09.656 -0400

OS Version: Mac OS X 10.9.4 (13E28)

Report Version: 11

Anonymous UUID: 2EA7CA5E-4498-2467-067A-9F752BC85ED9

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)

Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000

VM Regions Near 0:

-->

__TEXT 0000000105a67000-0000000105a98000 [ 196K] r-x/rwx SM=COW /Applications/Server.app/Contents/ServerRoot/usr/libexec/dovecot/auth

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread

0 libsystem_c.dylib 0x00007fff8b68c732 strlen + 18

1 libdovecot.0.dylib 0x0000000105b0d2b8 vstrconcat + 72

Thread 1:: Dispatch queue: com.apple.libdispatch-manager

0 libsystem_kernel.dylib 0x00007fff81364662 kevent64 + 10

1 libdispatch.dylib 0x00007fff8a5ef421 _dispatch_mgr_invoke + 239

2 libdispatch.dylib 0x00007fff8a5ef136 _dispatch_mgr_thread + 52

Thread 2:

0 libsystem_kernel.dylib 0x00007fff81363e6a __workq_kernreturn + 10

1 libsystem_pthread.dylib 0x00007fff855fef08 _pthread_wqthread + 330

2 libsystem_pthread.dylib 0x00007fff85601fb9 start_wqthread + 13

Thread 3:

0 libsystem_kernel.dylib 0x00007fff81363e6a __workq_kernreturn + 10

1 libsystem_pthread.dylib 0x00007fff855fef08 _pthread_wqthread + 330

2 libsystem_pthread.dylib 0x00007fff85601fb9 start_wqthread + 13

Thread 0 crashed with X86 Thread State (64-bit):

rax: 0x00007fff5a198848 rbx: 0x0000000000000001 rcx: 0x0000000000000001 rdx: 0x0000000000000001

rdi: 0x0000000000000000 rsi: 0x0000000105a9154d rbp: 0x00007fff5a1987d0 rsp: 0x00007fff5a1987d0

r8: 0x0000000105a9154e r9: 0x0000000000000000 r10: 0x00007fff8b6d42a8 r11: 0x00007fb9335774c6

r12: 0x0000000000000023 r13: 0x00007fff5a1988f0 r14: 0x0000000000000023 r15: 0x0000000000000009

rip: 0x00007fff8b68c732 rfl: 0x0000000000010246 cr2: 0x0000000000000000

Logical CPU: 2

Error Code: 0x00000004

Trap Number: 14

Binary Images:

0x105a67000 - 0x105a97fff +auth (294) <9C65B4F5-CC42-3413-8AB6-B751942356FE> /Applications/Server.app/Contents/ServerRoot/usr/libexec/dovecot/auth

0x105ab6000 - 0x105b32ff7 +libdovecot.0.dylib (294) <F215C515-D918-3D43-AE6B-E97C6D4BD78C> /Applications/Server.app/Contents/ServerRoot/usr/lib/dovecot/libdovecot.0.dylib

0x7fff6af57000 - 0x7fff6af8a817 dyld (239.4) <042C4CED-6FB2-3B1C-948B-CAF2EE3B9F7A> /usr/lib/dyld

0x7fff8130e000 - 0x7fff81315ffb libcopyfile.dylib (103.92.1) <CF29DFF6-0589-3590-834C-82E2316612E8> /usr/lib/system/libcopyfile.dylib

0x7fff81316000 - 0x7fff8131cff7 libsystem_platform.dylib (24.90.1) <3C3D3DA8-32B9-3243-98EC-D89B9A1670B3> /usr/lib/system/libsystem_platform.dylib

0x7fff81331000 - 0x7fff8134dfff libresolv.9.dylib (54) <11C2C826-F1C6-39C6-B4E8-6E0C41D4FA95> /usr/lib/libresolv.9.dylib

0x7fff8134e000 - 0x7fff8136aff7 libsystem_kernel.dylib (2422.110.17) <873931CE-D1AF-3596-AADB-D2E63C9AB29F> /usr/lib/system/libsystem_kernel.dylib

0x7fff81e5c000 - 0x7fff82014ffb libicucore.A.dylib (511.34) <616A65D6-3F20-3EAB-8CA8-273AD890261C> /usr/lib/libicucore.A.dylib

0x7fff82015000 - 0x7fff8201afff com.apple.DiskArbitration (2.6 - 2.6) <A4165553-770E-3D27-B217-01FC1F852B87> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration

0x7fff8202b000 - 0x7fff8205aff9 com.apple.GSS (4.0 - 2.0) <44E914BE-B0D0-3E05-9451-CA9E539AFA52> /System/Library/Frameworks/GSS.framework/Versions/A/GSS

0x7fff82065000 - 0x7fff8206cfff com.apple.NetFS (6.0 - 4.0) <8E26C099-CE9D-3819-91A2-64EA929C6137> /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS

0x7fff82216000 - 0x7fff8227afff com.apple.datadetectorscore (5.0 - 354.5) <0AE9749A-6BFC-3032-B802-210DF59AEDB0> /System/Library/PrivateFrameworks/DataDetectorsCore.framework/Versions/A/DataDe tectorsCore

0x7fff8227b000 - 0x7fff822e0ffb com.apple.Heimdal (4.0 - 2.0) <F34D6627-9F80-3823-8B57-DB629307DF87> /System/Library/PrivateFrameworks/Heimdal.framework/Versions/A/Heimdal

0x7fff82578000 - 0x7fff82589ff7 libsystem_asl.dylib (217.1.4) <655FB343-52CF-3E2F-B14D-BEBF5AAEF94D> /usr/lib/system/libsystem_asl.dylib

0x7fff825a4000 - 0x7fff825adffd com.apple.CommonAuth (4.0 - 2.0) <32BA436F-6319-3A0B-B5D2-2EB75FF36B5B> /System/Library/PrivateFrameworks/CommonAuth.framework/Versions/A/CommonAuth

0x7fff825b2000 - 0x7fff825b3fff libunc.dylib (28) <62682455-1862-36FE-8A04-7A6B91256438> /usr/lib/system/libunc.dylib

0x7fff829b2000 - 0x7fff829b3fff liblangid.dylib (117) <9546E641-F730-3AB0-B3CD-E0E2FDD173D9> /usr/lib/liblangid.dylib

0x7fff82bcd000 - 0x7fff82c30ffb com.apple.SystemConfiguration (1.13.1 - 1.13.1) <2C8E1A73-5AD6-3A7D-8ED8-D6755555A993> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfi guration

0x7fff83acf000 - 0x7fff83afcff2 com.apple.frameworks.CoreDaemon (1.3 - 1.3) <43A137C4-3E72-37DC-945F-92569C12AAD4> /System/Library/PrivateFrameworks/CoreDaemon.framework/Versions/B/CoreDaemon

0x7fff83afd000 - 0x7fff83b18ff7 libCRFSuite.dylib (34) <FFAE75FA-C54E-398B-AA97-18164CD9789D> /usr/lib/libCRFSuite.dylib

0x7fff83b29000 - 0x7fff83c10ff7 libxml2.2.dylib (26) <A1DADD11-89E5-3DE4-8802-07186225967F> /usr/lib/libxml2.2.dylib

0x7fff83d3d000 - 0x7fff83d4aff7 libxar.1.dylib (202) <5572AA71-E98D-3FE1-9402-BB4A84E0E71E> /usr/lib/libxar.1.dylib

0x7fff841b7000 - 0x7fff841b8fff libsystem_sandbox.dylib (278.11.1) <0D0B13EA-6B7A-3AC8-BE60-B548543BEB77> /usr/lib/system/libsystem_sandbox.dylib

0x7fff841b9000 - 0x7fff841bdfff libpam.2.dylib (20) <B93CE8F5-DAA8-30A1-B1F6-F890509513CB> /usr/lib/libpam.2.dylib

0x7fff84850000 - 0x7fff84857ff8 liblaunch.dylib (842.92.1) <A40A0C7B-3216-39B4-8AE0-B5D3BAF1DA8A> /usr/lib/system/liblaunch.dylib

0x7fff849ce000 - 0x7fff849daff7 com.apple.OpenDirectory (10.9 - 173.90.1) <256C265B-7FA6-326D-9F60-18DADF5F3A0E> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory

0x7fff849f8000 - 0x7fff84a1fffb libsystem_info.dylib (449.1.3) <7D41A156-D285-3849-A2C3-C04ADE797D98> /usr/lib/system/libsystem_info.dylib

0x7fff84c17000 - 0x7fff84c1efff libcompiler_rt.dylib (35) <4CD916B2-1B17-362A-B403-EF24A1DAC141> /usr/lib/system/libcompiler_rt.dylib

0x7fff84c7e000 - 0x7fff84c8bff0 libbz2.1.0.dylib (29) <0B98AC35-B138-349C-8063-2B987A75D24C> /usr/lib/libbz2.1.0.dylib

0x7fff84ce8000 - 0x7fff84d01ff7 com.apple.Kerberos (3.0 - 1) <F108AFEB-198A-3BAF-BCA5-9DFCE55EFF92> /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos

0x7fff84e06000 - 0x7fff84febfff com.apple.CoreFoundation (6.9 - 855.17) <729BD6DA-1F63-3E72-A148-26F21EBF52BB> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation

0x7fff85362000 - 0x7fff85453ff9 libiconv.2.dylib (41) <BB44B115-AC32-3877-A0ED-AEC6232A4563> /usr/lib/libiconv.2.dylib

0x7fff85454000 - 0x7fff85457ff7 libdyld.dylib (239.4) <7C9EC3B7-DDE3-33FF-953F-4067C743951D> /usr/lib/system/libdyld.dylib

0x7fff855fc000 - 0x7fff85603ff7 libsystem_pthread.dylib (53.1.4) <AB498556-B555-310E-9041-F67EC9E00E2C> /usr/lib/system/libsystem_pthread.dylib

0x7fff8562f000 - 0x7fff85639fff libcommonCrypto.dylib (60049) <8C4F0CA0-389C-3EDC-B155-E62DD2187E1D> /usr/lib/system/libcommonCrypto.dylib

0x7fff85883000 - 0x7fff858acfff com.apple.DictionaryServices (1.2 - 208) <A539A058-BA57-35EE-AA08-D0B0E835127D> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Diction aryServices.framework/Versions/A/DictionaryServices

0x7fff858af000 - 0x7fff858d8ff7 libc++abi.dylib (49.1) <21A807D3-6732-3455-B77F-743E9F916DF0> /usr/lib/libc++abi.dylib

0x7fff858d9000 - 0x7fff85950fff com.apple.CoreServices.OSServices (600.4 - 600.4) <C63562F5-6DF5-3EE9-8897-FF61A44C8251> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServi ces.framework/Versions/A/OSServices

0x7fff85a03000 - 0x7fff85a06fff com.apple.TCC (1.0 - 1) <32A075D9-47FD-3E71-95BC-BFB0D583F41C> /System/Library/PrivateFrameworks/TCC.framework/Versions/A/TCC

0x7fff865fd000 - 0x7fff8660dfff libbsm.0.dylib (33) <2CAC00A2-1352-302A-88FA-C567D4D69179> /usr/lib/libbsm.0.dylib

0x7fff8660e000 - 0x7fff8663dfd2 libsystem_m.dylib (3047.16) <B7F0E2E4-2777-33FC-A787-D6430B630D54> /usr/lib/system/libsystem_m.dylib

0x7fff8663e000 - 0x7fff86642ff7 libheimdal-asn1.dylib (323.92.1) <CAE21FFF-5763-399C-B7C5-EEBFFEEF2242> /usr/lib/libheimdal-asn1.dylib

0x7fff869b9000 - 0x7fff869bbff7 libquarantine.dylib (71) <7A1A2BCB-C03D-3A25-BFA4-3E569B2D2C38> /usr/lib/system/libquarantine.dylib

0x7fff86a27000 - 0x7fff86a27ff7 libkeymgr.dylib (28) <3AA8D85D-CF00-3BD3-A5A0-E28E1A32A6D8> /usr/lib/system/libkeymgr.dylib

0x7fff86b46000 - 0x7fff86b94fff libcorecrypto.dylib (161.1) <F3973C28-14B6-3006-BB2B-00DD7F09ABC7> /usr/lib/system/libcorecrypto.dylib

0x7fff86b95000 - 0x7fff86c08fff com.apple.securityfoundation (6.0 - 55122.3) <8575DF7A-EC79-3FCE-A737-7512363A5B12> /System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoun dation

0x7fff86c12000 - 0x7fff86c16ff7 libcache.dylib (62) <BDC1E65B-72A1-3DA3-A57C-B23159CAAD0B> /usr/lib/system/libcache.dylib

0x7fff86c9e000 - 0x7fff86ca3ff7 libunwind.dylib (35.3) <78DCC358-2FC1-302E-B395-0155B47CB547> /usr/lib/system/libunwind.dylib

0x7fff8713b000 - 0x7fff8713cff7 libDiagnosticMessagesClient.dylib (100) <4CDB0F7B-C0AF-3424-BC39-495696F0DB1E> /usr/lib/libDiagnosticMessagesClient.dylib

0x7fff8718c000 - 0x7fff87195ff3 libsystem_notify.dylib (121) <52571EC3-6894-37E4-946E-064B021ED44E> /usr/lib/system/libsystem_notify.dylib

0x7fff8746b000 - 0x7fff87476fff libkxld.dylib (2422.110.17) <B6140BAB-0EAF-3E4F-B055-314068056BB4> /usr/lib/system/libkxld.dylib

0x7fff87cb1000 - 0x7fff87cb1ffd libOpenScriptingUtil.dylib (157) <19F0E769-0989-3062-9AFB-8976E90E9759> /usr/lib/libOpenScriptingUtil.dylib

0x7fff87d2a000 - 0x7fff87d2bff7 libSystem.B.dylib (1197.1.1) <E303F2F8-A8CF-3DF3-84B3-F2D0EE41CCF6> /usr/lib/libSystem.B.dylib

0x7fff88317000 - 0x7fff88383fff com.apple.framework.IOKit (2.0.1 - 907.100.13) <057FDBA3-56D6-3903-8C0B-849214BF1985> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit

0x7fff884db000 - 0x7fff884f2ff7 com.apple.CFOpenDirectory (10.9 - 173.90.1) <EBC0A1F2-9054-3D39-99AE-A3F655E55D6A> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/Frameworks/CFOpen Directory.framework/Versions/A/CFOpenDirectory

0x7fff88c45000 - 0x7fff88c60ff7 libsystem_malloc.dylib (23.10.1) <A695B4E4-38E9-332E-A772-29D31E3F1385> /usr/lib/system/libsystem_malloc.dylib

0x7fff88c61000 - 0x7fff88cb3fff libc++.1.dylib (120) <4F68DFC5-2077-39A8-A449-CAC5FDEE7BDE> /usr/lib/libc++.1.dylib

0x7fff893ee000 - 0x7fff89449ffb com.apple.AE (665.5 - 665.5) <BBA230F9-144C-3CAB-A77A-0621719244CD> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.fram ework/Versions/A/AE

0x7fff8944a000 - 0x7fff8948cff7 libauto.dylib (185.5) <F45C36E8-B606-3886-B5B1-B6745E757CA8> /usr/lib/libauto.dylib

0x7fff8a083000 - 0x7fff8a085ff3 libsystem_configuration.dylib (596.15) <4998CB6A-9D54-390A-9F57-5D1AC53C135C> /usr/lib/system/libsystem_configuration.dylib

0x7fff8a086000 - 0x7fff8a08eff7 com.apple.AppleSRP (5.0 - 1) <ABC7F088-1FD5-3768-B9F3-847F355E90B3> /System/Library/PrivateFrameworks/AppleSRP.framework/Versions/A/AppleSRP

0x7fff8a0b0000 - 0x7fff8a0b5fff libmacho.dylib (845) <1D2910DF-C036-3A82-A3FD-44FF73B5FF9B> /usr/lib/system/libmacho.dylib

0x7fff8a154000 - 0x7fff8a178fff libxpc.dylib (300.90.2) <AB40CD57-F454-3FD4-B415-63B3C0D5C624> /usr/lib/system/libxpc.dylib

0x7fff8a5ec000 - 0x7fff8a606fff libdispatch.dylib (339.92.1) <C4E4A18D-3C3B-3C9C-8709-A4270D998DE7> /usr/lib/system/libdispatch.dylib

0x7fff8a607000 - 0x7fff8a697ff7 com.apple.Metadata (10.7.0 - 800.28) <E85AEB1B-CB17-38BC-B5C6-AAB50B47AF05> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Metadata

0x7fff8a771000 - 0x7fff8aa5bfff com.apple.CoreServices.CarbonCore (1077.17 - 1077.17) <3A2E92FD-DEE2-3D45-9619-11500801A61C> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonC ore.framework/Versions/A/CarbonCore

0x7fff8aab4000 - 0x7fff8aadcffb libxslt.1.dylib (13) <C9794936-633C-3F0C-9E71-30190B9B41C1> /usr/lib/libxslt.1.dylib

0x7fff8aadd000 - 0x7fff8aae1ff7 libsystem_stats.dylib (93.90.3) <4E51D5B0-92A0-3D0D-B90E-495A1ED3E391> /usr/lib/system/libsystem_stats.dylib

0x7fff8ab99000 - 0x7fff8ab9afff com.apple.TrustEvaluationAgent (2.0 - 25) <334A82F4-4AE4-3719-A511-86D0B0723E2B> /System/Library/PrivateFrameworks/TrustEvaluationAgent.framework/Versions/A/Tru stEvaluationAgent

0x7fff8ac24000 - 0x7fff8add1f27 libobjc.A.dylib (551.1) <AD7FD984-271E-30F4-A361-6B20319EC73B> /usr/lib/libobjc.A.dylib

0x7fff8af5c000 - 0x7fff8b046fff libsqlite3.dylib (158) <00269BF9-43BE-39E0-9C85-24585B9923C8> /usr/lib/libsqlite3.dylib

0x7fff8b06b000 - 0x7fff8b0d8fff com.apple.SearchKit (1.4.0 - 1.4.0) <B9B8D510-A27E-36B0-93E9-17146D9E9045> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchK it.framework/Versions/A/SearchKit

0x7fff8b5a1000 - 0x7fff8b5a2ff7 libsystem_blocks.dylib (63) <FB856CD1-2AEA-3907-8E9B-1E54B6827F82> /usr/lib/system/libsystem_blocks.dylib

0x7fff8b68b000 - 0x7fff8b714ff7 libsystem_c.dylib (997.90.3) <6FD3A400-4BB2-3B95-B90C-BE6E9D0D78FA> /usr/lib/system/libsystem_c.dylib

0x7fff8b9a7000 - 0x7fff8b9b8ff7 libz.1.dylib (53) <42E0C8C6-CA38-3CA4-8619-D24ED5DD492E> /usr/lib/libz.1.dylib

0x7fff8b9b9000 - 0x7fff8bb54ff8 com.apple.CFNetwork (673.3 - 673.3) <4375B7CB-34B6-3A26-99AC-2D2404AD9C9B> /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork

0x7fff8c53c000 - 0x7fff8c53cfff com.apple.CoreServices (59 - 59) <7A697B5E-F179-30DF-93F2-8B503CEEEFD5> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices

0x7fff8c833000 - 0x7fff8cb31fff com.apple.Foundation (6.9 - 1056.13) <2EE9AB07-3EA0-37D3-B407-4A520F2CB497> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation

0x7fff8d213000 - 0x7fff8d2ddfff com.apple.LaunchServices (572.28 - 572.28) <FDED4724-4CB6-3DE5-B785-AE6D4C261CF6> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchS ervices.framework/Versions/A/LaunchServices

0x7fff8d370000 - 0x7fff8d371ffb libremovefile.dylib (33) <3543F917-928E-3DB2-A2F4-7AB73B4970EF> /usr/lib/system/libremovefile.dylib

0x7fff8d7c6000 - 0x7fff8d7edff7 libsystem_network.dylib (241.3) <8B1E1F1D-A5CC-3BAE-8B1E-ABC84337A364> /usr/lib/system/libsystem_network.dylib

0x7fff8d7ee000 - 0x7fff8d7f9ff7 com.apple.NetAuth (5.0 - 5.0) <C811E662-9EC3-3B74-808A-A75D624F326B> /System/Library/PrivateFrameworks/NetAuth.framework/Versions/A/NetAuth

0x7fff8d7fa000 - 0x7fff8d8d9fff libcrypto.0.9.8.dylib (50) <B95B9DBA-39D3-3EEF-AF43-44608B28894E> /usr/lib/libcrypto.0.9.8.dylib

0x7fff8d8da000 - 0x7fff8db34ff9 com.apple.security (7.0 - 55471.14.8) <EA03E140-2509-3A07-8440-2DC97C0D478B> /System/Library/Frameworks/Security.framework/Versions/A/Security

0x7fff8deb0000 - 0x7fff8deb8fff libsystem_dnssd.dylib (522.92.1) <17B03FFD-92C5-3282-9981-EBB28B456207> /usr/lib/system/libsystem_dnssd.dylib

0x7fff8e7aa000 - 0x7fff8e7b4ff7 com.apple.bsd.ServiceManagement (2.0 - 2.0) <2D27B498-BB9C-3D88-B05A-76908A8A26F3> /System/Library/Frameworks/ServiceManagement.framework/Versions/A/ServiceManage ment

External Modification Summary:

Calls made by other processes targeting this process:

task_for_pid: 0

thread_create: 0

thread_set_state: 0

Calls made by this process:

task_for_pid: 0

thread_create: 0

thread_set_state: 0

Calls made by all processes on this machine:

task_for_pid: 39041

thread_create: 0

thread_set_state: 0

VM Region Summary:

ReadOnly portion of Libraries: Total=95.6M resident=45.8M(48%) swapped_out_or_unallocated=49.8M(52%)

Writable regions: Total=81.6M written=816K(1%) resident=940K(1%) swapped_out=0K(0%) unallocated=80.6M(99%)

REGION TYPE VIRTUAL

=========== =======

Dispatch continuations 16.0M

Kernel Alloc Once 4K

MALLOC 56.2M

MALLOC (admin) 16K

STACK GUARD 56.0M

Stack 9304K

VM_ALLOCATE 24K

__DATA 3524K

__LINKEDIT 66.4M

__TEXT 29.2M

__UNICODE 544K

shared memory 4K

=========== =======

TOTAL 236.9M

MacBook Pro (15-inch 2.4/2.2 GHz), OS X Mavericks (10.9.4)

Posted on Aug 6, 2014 6:37 AM

24 replies

Nov 19, 2014 3:53 PM in response to Henry Stepp

I've figured out that 10.10 is the main source (if not the only source) of crashes. I have 4 10.10 users and when I block them with a firewall the crashes stop.

Does anyone have 10.10 and OS X Server 4.0? I'm wondering if the problem happens there as well. I'm also curious what version of dovecot it comes with. OS X Server 3.2.2 is dovecot 2.2.5. You can find the version by opening Terminal and typing `dovecotd --version`.

I'm glad to know that iOS 8.x isn't causing the crashes, that was on my list of things to test.

Nov 20, 2014 1:24 AM in response to magnusviri

Same with me. Running Mavericks server with some 10.10 Clients. I set the mail authentication to custom and disabled all but the CRAM-MD5.

Crashing stopped.

Nov 20, 2014 11:42 AM in response to Juergen Sauerzapf

Regarding the 10.10 Mail.app clients, you can work around the constant auth issues by turning off the client's "Automatically detect and maintain account settings" (Mail slow authenticating to Yosemite server). This also works around several performance issues at the client-end.

This setting seems to rotate the authentication method used, but doesn't seem to stick with the one that works once it finds it. Presumably one of the methods it attempts irritates auth.

I currently allow CRAM-MD5, so this might be the issue server-side for me as well.

Nov 20, 2014 12:54 PM in response to glen.circle

Using information from that other thread (Mail slow authenticating to Yosemite server), I can confirm that unchecking "Automatically detect and maintain account settings" on the 10.10 clients stops the crashes. Also, unchecking "Digest-MD5" in the Server app, Mail->Authentication also stops the crashes. So it it appears that it is a combination of 10.10 checking Digest-MD5 passwords that is crashing the auth process.

Nov 20, 2014 1:49 PM in response to magnusviri

Ah, yes, I misread that. CRAM-MD5 seems to work just fine.

I think you're correct about DIGEST-MD5 being Yosemite Mail's specific issue. Looking at /Library/Logs/Mail/mail-info.log, I see frequent "Aborted login" messages referencing method="DIGEST-MD5" and corresponding to my 10.10 users' login attempts prior to the client workaround.

Hopefully it's pretty safe to turn off at this point, considering there's no indication that anyone's used it successfully for IMAP since my 10.9 server rollout, and it doesn't seem very popular among mail clients.

Nov 20, 2014 2:52 PM in response to glen.circle

Disabling DIGEST-MD5 does clear up the server-side Yosemite Mail.app auth failures for me, although it's still slower than locking Mail.app into one auth method.

More interestingly and on-topic, dovecot/auth hasn't segfaulted on me once since I made this change. There's an... eerie silence in my console.

If I turn DIGEST-MD5 back on, every Outlook IMAP fetch causes a segfault. If I turn it off again, no segfault.

jlgtx

Level 1

9 points

Nov 25, 2014 12:39 PM in response to Tony Stinson

Same issues here with Mavericks Server. I stopped the auth crashes by disabling all authentication methods except CRAM-MD5 as someone suggested earlier, but that caused issues with multiple clients (primarily Outlook, but a few others that were using plaintext-over-SSL). I went back and reenabled everything but Digest-MD5, and so far auth is still happy. Outlook clients obviously don't work properly with Apple's Digest-MD5 implementation, so that needs to stay off. Perhaps the auth instability has something to do with the order of the authentication entries in postfix's main.cf and/or dovecot's 10-auth.conf.

For the record, here are the lines in the two files as they appear on my server now, with auth (so far) not crashing. If anyone has time to test these options in different orders, I'm sure we'd all love to know the results:

(in /Library/Server/Mail/Config/postfix/main.cf)

smtpd_pw_server_security_options = cram-md5,gssapi,login,plain

(in /Library/Server/Mail/Config/dovecot/conf.d/10-auth.conf)

auth_mechanisms = cram-md5 apop gssapi plain login

Dec 13, 2014 5:42 AM in response to jlgtx

jlgtx wrote:

Same issues here with Mavericks Server.

...

(in /Library/Server/Mail/Config/dovecot/conf.d/10-auth.conf)

auth_mechanisms = cram-md5 apop gssapi plain login

Thanks. I've been experiencing the crashes with Mavericks Server + Yosemite Mail client. Disabling digest-MD5 has stopped them.

I've also turned off "Automatically detect and maintain account settings" as suggested by glen.circle, which I'm hoping will stop repeated auth failures (CRAM-MD5) from Yosemite clients by getting them to stick to "password". These auth failures could be problematic, I think, as the Adaptive Firewall (emond/afctl) is blocking the clients for 15 minutes each time (as it should).

So now I'm sitting here tailing /Library/Logs/Mail/mail-err.log and hoping the auth failures go away & /var/db/af/blacklist stays empty.

Jul 8, 2015 12:29 PM in response to glen.circle

glen.circle wrote:

Regarding the 10.10 Mail.app clients, you can work around the constant auth issues by turning off the client's "Automatically detect and maintain account settings" (Mail slow authenticating to Yosemite server). This also works around several performance issues at the client-end.

This setting seems to rotate the authentication method used, but doesn't seem to stick with the one that works once it finds it. Presumably one of the methods it attempts irritates auth.

I currently allow CRAM-MD5, so this might be the issue server-side for me as well.

Another data point: shutting off CRAM-MD5 on the server wasn't a central a factor with the local auth daemon crashes — that's been disabled for weeks on a test server that's showing this with a newly-arrived mail client — it's disabling the setting in the OS X 10.10 (10.10.4, in this case) Mail.app mail client that senses the settings that got auth to not crash.

The test server is running Server.app 3.2.2 (13S5187) on OS X 10.9.5

ps: Remember to disable that setting for each mail server account, if you have more than one configured for the server within a particular client.

Dovecot Repeatedly Crashing on Mavericks Server