On macOS, anything involving the Finder crashes sshfs
Author: dtgriscomCreated Dec 3, 2025Updated Aug 14, 2026
I had MacFUSE/sshfs working fine on my Apple M2 Macbook Pro running Sequoia 15.7.2. But, brew was confused, so I blew away my brew installation and reinstalled everything. I made sure that everything was ARM-based (it took a few tries).
I then reinstalled MacFUSE 5.1.2 and sshfs-3.7.5.pkg (both from here). And, my old scripts to start up sshfs mounting various Ubuntu boxes still work. I can use the command line to go into and interact with the mounted drives. I can even use BBEdit to edit files on the drive.
Problem: every time I try to use the Finder on an sshfs'd directory, sshfs crashes. I can view the drive's top level directory in the Finder, but anything deeper than that: boom. The same for using the standard File Open dialog from any app (e.g. when using "File/Open..." from BBEdit).
The entire Problem Reporter output is below, but the key seems to be that the thread that crashed is trying to use ssh_readdir():
Thread 6 Crashed:
0 libsystem_kernel.dylib 0x186e5a388 __pthread_kill + 8
1 libsystem_pthread.dylib 0x186e93848 pthread_kill + 296
2 libsystem_c.dylib 0x186d9c9e4 abort + 124
3 libsystem_c.dylib 0x186d9bc18 __assert_rtn + 284
4 sshfs 0x10286e2c4 sshfs_readdir.cold.2 + 40
5 sshfs 0x1028030f4 sshfs_readdir + 652
6 libfuse3.4.dylib 0x102f05090 0x102ef4000 + 69776
7 libfuse3.4.dylib 0x102f0e1c8 0x102ef4000 + 106952
8 libfuse3.4.dylib 0x102f0b014 fuse_session_process_buf_internal + 1272
9 libfuse3.4.dylib 0x102f07b88 0x102ef4000 + 80776
10 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
11 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8Do you have any suggestions on how I could debug this?
P.S. Here's the complete Problem Reporter output:
-------------------------------------
Translated Report (Full Report Below)
-------------------------------------
Process: sshfs [1783]
Path: /usr/local/bin/sshfs
Identifier: sshfs
Version: ???
Code Type: ARM-64 (Native)
Parent Process: launchd [1]
Responsible: iTerm2 [483]
User ID: 501
Date/Time: 2025-12-02 21:59:10.0389 -0500
OS Version: macOS 15.7.2 (24G325)
Report Version: 12
Anonymous UUID: C85561C1-847C-52E4-551C-190E6936CA25
Sleep/Wake UUID: 0EE9C91A-3E06-44CE-A9F8-560D6258D778
Time Awake Since Boot: 2500 seconds
Time Since Wake: 1211 seconds
System Integrity Protection: enabled
Crashed Thread: 6
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Termination Reason: Namespace SIGNAL, Code 6 Abort trap: 6
Terminating Process: sshfs [1783]
Application Specific Information:
crashed on child side of fork pre-exec
Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x186e51bb0 semaphore_wait_trap + 8
1 libdispatch.dylib 0x186cdd960 _dispatch_sema4_wait + 28
2 libdispatch.dylib 0x186cddf10 _dispatch_semaphore_wait_slow + 132
3 libfuse3.4.dylib 0x102f07530 fuse_session_loop_mt_312 + 284
4 libfuse3.4.dylib 0x102ef8fb0 fuse_loop_mt_312 + 84
5 libfuse3.4.dylib 0x102ef9108 fuse_loop_mt_31 + 56
6 sshfs 0x1027ff608 main + 3056
7 dyld 0x186af2b98 start + 6076
Thread 1:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 libfuse3.4.dylib 0x102f0b6b8 0x102ef4000 + 95928
2 libfuse3.4.dylib 0x102f07ae4 0x102ef4000 + 80612
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 2:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 libfuse3.4.dylib 0x102f0b6b8 0x102ef4000 + 95928
2 libfuse3.4.dylib 0x102f07ae4 0x102ef4000 + 80612
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 3:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 sshfs 0x102805774 sftp_read + 76
2 sshfs 0x10280543c process_requests + 168
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 4:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 libfuse3.4.dylib 0x102f0b6b8 0x102ef4000 + 95928
2 libfuse3.4.dylib 0x102f07ae4 0x102ef4000 + 80612
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 5:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 libfuse3.4.dylib 0x102f0b6b8 0x102ef4000 + 95928
2 libfuse3.4.dylib 0x102f07ae4 0x102ef4000 + 80612
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 6 Crashed:
0 libsystem_kernel.dylib 0x186e5a388 __pthread_kill + 8
1 libsystem_pthread.dylib 0x186e93848 pthread_kill + 296
2 libsystem_c.dylib 0x186d9c9e4 abort + 124
3 libsystem_c.dylib 0x186d9bc18 __assert_rtn + 284
4 sshfs 0x10286e2c4 sshfs_readdir.cold.2 + 40
5 sshfs 0x1028030f4 sshfs_readdir + 652
6 libfuse3.4.dylib 0x102f05090 0x102ef4000 + 69776
7 libfuse3.4.dylib 0x102f0e1c8 0x102ef4000 + 106952
8 libfuse3.4.dylib 0x102f0b014 fuse_session_process_buf_internal + 1272
9 libfuse3.4.dylib 0x102f07b88 0x102ef4000 + 80776
10 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
11 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 7:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 libfuse3.4.dylib 0x102f0b6b8 0x102ef4000 + 95928
2 libfuse3.4.dylib 0x102f07ae4 0x102ef4000 + 80612
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 8:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 libfuse3.4.dylib 0x102f0b6b8 0x102ef4000 + 95928
2 libfuse3.4.dylib 0x102f07ae4 0x102ef4000 + 80612
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 9:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 libfuse3.4.dylib 0x102f0b6b8 0x102ef4000 + 95928
2 libfuse3.4.dylib 0x102f07ae4 0x102ef4000 + 80612
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 10:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 libfuse3.4.dylib 0x102f0b6b8 0x102ef4000 + 95928
2 libfuse3.4.dylib 0x102f07ae4 0x102ef4000 + 80612
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 11:
0 libsystem_kernel.dylib 0x186e527dc read + 8
1 libfuse3.4.dylib 0x102f0b6b8 0x102ef4000 + 95928
2 libfuse3.4.dylib 0x102f07ae4 0x102ef4000 + 80612
3 libsystem_pthread.dylib 0x186e93bc8 _pthread_start + 136
4 libsystem_pthread.dylib 0x186e8eb80 thread_start + 8
Thread 6 crashed with ARM Thread State (64-bit):
x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x0000000000000000
x4: 0x0000000000000000 x5: 0x000000000000002e x6: 0x0000000000000002 x7: 0x0000000000000000
x8: 0x1bcba9293acb183f x9: 0x1bcba9285756283f x10: 0x000000000000000a x11: 0x0000000000000000
x12: 0x0000000000000032 x13: 0x0000000000000000 x14: 0x0000000000000000 x15: 0x0000000000000010
x16: 0x0000000000000148 x17: 0x00000001f5e7d548 x18: 0x0000000000000000 x19: 0x0000000000000006
x20: 0x0000000000000d03 x21: 0x000000016d9d30e0 x22: 0x0000000000000016 x23: 0x00000001029a22de
x24: 0x00000001f281f000 x25: 0x0000000000000003 x26: 0x0000000127605b80 x27: 0x0000000000000000
x28: 0x0000000137606040 fp: 0x000000016d9d2a80 lr: 0x0000000186e93848
sp: 0x000000016d9d2a60 pc: 0x0000000186e5a388 cpsr: 0x40001000
far: 0x0000000000000000 esr: 0x56000080 Address size fault
Binary Images:
0x1027fc000 - 0x1029affff sshfs (*) <bf8b19b7-7c53-3967-af89-da0fe38b0cd8> /usr/local/bin/sshfs
0x102ef4000 - 0x102f1ffff libfuse3.4.dylib (*) <c28dc693-b389-3fcb-ab94-227c490a8c6d> /usr/local/lib/libfuse3.4.dylib
0x186e51000 - 0x186e8c663 libsystem_kernel.dylib (*) <e5d90565-fa1a-3112-b048-59e321191677> /usr/lib/system/libsystem_kernel.dylib
0x186cda000 - 0x186d2075f libdispatch.dylib (*) <63a54ce1-2ab6-3673-82e4-d8489d811475> /usr/lib/system/libdispatch.dylib
0x186aec000 - 0x186b8757b dyld (*) <037bb3c1-5c6c-3ec9-af31-f5bded703b36> /usr/lib/dyld
0x0 - 0xffffffffffffffff ??? (*) <00000000-0000-0000-0000-000000000000> ???
0x186e8d000 - 0x186e99a77 libsystem_pthread.dylib (*) <022dc315-cf35-38da-939e-03800b5beff2> /usr/lib/system/libsystem_pthread.dylib
0x186d24000 - 0x186da51f7 libsystem_c.dylib (*) <e098cb59-2c56-395c-ade1-6ef590e61199> /usr/lib/system/libsystem_c.dylib
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: 0
thread_create: 0
thread_set_state: 0
VM Region Summary:
ReadOnly portion of Libraries: Total=847.8M resident=0K(0%) swapped_out_or_unallocated=847.8M(100%)
Writable regions: Total=1.2G written=337K(0%) resident=337K(0%) swapped_out=0K(0%) unallocated=1.2G(100%)
VIRTUAL REGION
REGION TYPE SIZE COUNT (non-coalesced)
=========== ======= =======
Kernel Alloc Once 32K 1
MALLOC 1.2G 33
MALLOC guard page 96K 6
STACK GUARD 56.2M 12
Stack 14.4M 13
Stack Guard 16K 1
VM_ALLOCATE 16K 1
__AUTH 822K 161
__AUTH_CONST 12.8M 295
__DATA 11.2M 277
__DATA_CONST 10.8M 297
__DATA_DIRTY 453K 88
__FONT_DATA 2352 1
__LINKEDIT 617.1M 3
__OBJC_RO 61.4M 1
__OBJC_RW 2396K 1
__TEXT 230.7M 306
__TPRO_CONST 128K 2
page table in kernel 337K 1
shared memory 32K 1
=========== ======= =======
TOTAL 2.2G 1501
-----------
Full Report
-----------
{"app_name":"sshfs","timestamp":"2025-12-02 21:59:10.00 -0500","app_version":"","slice_uuid":"bf8b19b7-7c53-3967-af89-da0fe38b0cd8","build_version":"","platform":1,"share_with_app_devs":0,"is_first_party":1,"bug_type":"309","os_version":"macOS 15.7.2 (24G325)","roots_installed":0,"incident_id":"34383CD0-56BC-4BEB-9A83-08C6CCF00AE8","name":"sshfs"}
{
"uptime" : 2500,
"procRole" : "Unspecified",
"version" : 2,
"userID" : 501,
"deployVersion" : 210,
"modelCode" : "Mac14,5",
"coalitionID" : 533,
"osVersion" : {
"train" : "macOS 15.7.2",
"build" : "24G325",
"releaseType" : "User"
},
"captureTime" : "2025-12-02 21:59:10.0389 -0500",
"codeSigningMonitor" : 1,
"incident" : "34383CD0-56BC-4BEB-9A83-08C6CCF00AE8",
"pid" : 1783,
"translated" : false,
"cpuType" : "ARM-64",
"roots_installed" : 0,
"bug_type" : "309",
"procLaunch" : "2025-12-02 21:45:06.6156 -0500",
"procStartAbsTime" : 40264837419,
"procExitAbsTime" : 60507032613,
"procName" : "sshfs",
"procPath" : "\/usr\/local\/bin\/sshfs",
"parentProc" : "launchd",
"parentPid" : 1,
"coalitionName" : "com.googlecode.iterm2",
"crashReporterKey" : "C85561C1-847C-52E4-551C-190E6936CA25",
"appleIntelligenceStatus" : {"state":"available"},
"responsiblePid" : 483,
"responsibleProc" : "iTerm2",
"codeSigningID" : "sshfs",
"codeSigningTeamID" : "3T5GSNBU6W",
"codeSigningFlags" : 570503953,
"codeSigningValidationCategory" : 6,
"codeSigningTrustLevel" : 4294967295,
"codeSigningAuxiliaryInfo" : 0,
"instructionByteStream" : {"beforePC":"fyMD1f17v6n9AwCRm+D\/l78DAJH9e8Go\/w9f1sADX9YQKYDSARAA1A==","atPC":"AwEAVH8jA9X9e7+p\/QMAkZDg\/5e\/AwCR\/XvBqP8PX9bAA1\/WcAqA0g=="},
"bootSessionUUID" : "3F0B4D44-5821-445E-92AF-60380200043A",
"wakeTime" : 1211,
"sleepWakeUUID" : "0EE9C91A-3E06-44CE-A9F8-560D6258D778",
"sip" : "enabled",
"exception" : {"codes":"0x0000000000000000, 0x0000000000000000","rawCodes":[0,0],"type":"EXC_CRASH","signal":"SIGABRT"},
"termination" : {"flags":0,"code":6,"namespace":"SIGNAL","indicator":"Abort trap: 6","byProc":"sshfs","byPid":1783},
"asi" : {"libsystem_c.dylib":["crashed on child side of fork pre-exec"]},
"extMods" : {"caller":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"system":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"targeted":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"warnings":0},
"faultingThread" : 6,
"threads" : [{"id":37584,"threadState":{"x":[{"value":14},{"value":8589934595},{"value":171798697235},{"value":4410931413251},{"value":14680198217728},{"value":4410931412992},{"value":48},{"value":0},{"value":0},{"value":1},{"value":0},{"value":2},{"value":8403486872,"symbolLocation":0,"symbol":"vm_page_size"},{"value":105553175328945},{"value":4294967279},{"value":4344370322},{"value":18446744073709551580},{"value":8420582872},{"value":0},{"value":4955593392},{"value":4955593328},{"value":18446744073709551615},{"value":0},{"value":0},{"value":6129986576},{"value":105553163812864},{"value":4338703644,"symbolLocation":340,"symbol":"sshfs"},{"value":4338703304,"symbolLocation":0,"symbol":"sshfs"},{"value":4338700288,"symbolLocation":200,"symbol":"workaround_opts"}],"flavor":"ARM_THREAD_STATE64","lr":{"value":6556604768},"cpsr":{"value":1610616832},"fp":{"value":6129986432},"sp":{"value":6129986416},"esr":{"value":1442840704,"description":" Address size fault"},"pc":{"value":6558129072},"far":{"value":0}},"queue":"com.apple.main-thread","frames":[{"imageOffset":2992,"symbol":"semaphore_wait_trap","symbolLocation":8,"imageIndex":2},{"imageOffset":14688,"symbol":"_dispatch_sema4_wait","symbolLocation":28,"imageIndex":3},{"imageOffset":16144,"symbol":"_dispatch_semaphore_wait_slow","symbolLocation":132,"imageIndex":3},{"imageOffset":79152,"symbol":"fuse_session_loop_mt_312","symbolLocation":284,"imageIndex":1},{"imageOffset":20400,"symbol":"fuse_loop_mt_312","symbolLocation":84,"imageIndex":1},{"imageOffset":20744,"symbol":"fuse_loop_mt_31","symbolLocation":56,"imageIndex":1},{"imageOffset":13832,"symbol":"main","symbolLocation":3056,"imageIndex":0},{"imageOffset":27544,"symbol":"start","symbolLocation":6076,"imageIndex":4}]},{"id":37585,"frames":[{"imageOffset":6108,"symbol":"read","symbolLocation":8,"imageIndex":2},{"imageOffset":95928,"imageIndex":1},{"imageOffset":80612,"imageIndex":1},{"imageOffset":27592,"symbol":"_pthread_start","symbolLocation":136,"imageIndex":6},{"imageOffset":7040,"symbol":"thread_start","symbolLocation":8,"imageIndex":6}],"threadState":{"x":[{"value":4},{"value":0},{"value":4198400},{"value":1},{"value":4688200400},{"value":4},{"value":2},{"value":6131110740},{"value":0},{"value":5226172948},{"value":3},{"value":6131118246},{"value":0},{"value":0},{"value":8363565056,"symbolLocation":6840,"symbol":"read_memory"},{"value":4},{"value":3},{"value":8420578608},{"value":0},{"value":5226172928},{"value":4955593432},{"value":1},{"value":4198400},{"value":0},{"value":4344463360},{"value":5226172948},{"value":5226173376},{"value":0},{"value":0}],"flavor":"ARM_THREAD_STATE64","lr":{"value":4344297144},"cpsr":{"value":1610616832},"fp":{"value":6131117968},"sp":{"value":6131117888},"esr":{"value":1442840704,"description":" Address size 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Address size fault"},"pc":{"value":6558132188},"far":{"value":0}}},{"id":37587,"frames":[{"imageOffset":6108,"symbol":"read","symbolLocation":8,"imageIndex":2},{"imageOffset":38772,"symbol":"sftp_read","symbolLocation":76,"imageIndex":0},{"imageOffset":37948,"symbol":"process_requests","symbolLocation":168,"imageIndex":0},{"imageOffset":27592,"symbol":"_pthread_start","symbolLocation":136,"imageIndex":6},{"imageOffset":7040,"symbol":"thread_start","symbolLocation":8,"imageIndex":6}],"threadState":{"x":[{"value":4},{"value":0},{"value":5},{"value":4689249152},{"value":1103806595328},{"value":256},{"value":0},{"value":0},{"value":0},{"value":2563},{"value":2149818432},{"value":2149818432},{"value":41104},{"value":4339190304},{"value":0},{"value":16},{"value":3},{"value":8420587120},{"value":0},{"value":4689249136},{"value":105553145955072},{"value":6132264792},{"value":6132264791},{"value":5},{"value":4689249136},{"value":1209},{"value":4689249104},{"value":4338703824,"symbolLocation":520,"symbol":"sshfs"},{"value":4338703560,"symbolLocation":256,"symbol":"sshfs"}],"flavor":"ARM_THREAD_STATE64","lr":{"value":4336932724},"cpsr":{"value":1610616832},"fp":{"value":6132264720},"sp":{"value":6132264656},"esr":{"value":1442840704,"description":" Address size fault"},"pc":{"value":6558132188},"far":{"value":0}}},{"id":37590,"frames":[{"imageOffset":6108,"symbol":"read","symbolLocatioSource: libfuse/sshfs