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DickPhallia

Btsync 2.0 Core Dumps In Some Linux X86_64 Computers

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Hello!

 

I had 1.4 running in three computers without issue. I paid without hesitation and upgraded only to find it doesn't work in two of the machines.

 

In these two, BTSync segfaults right away

 

relevant parts of a strace:

[snip]open("/home/z-247/.config/btsync/btsync.conf", O_RDONLY|O_NOATIME) = 3 <0.000039>lstat("/home/z-247/.config/btsync/btsync.conf", {st_mode=S_IFREG|0644, st_size=2283, ...}) = 0 <0.000033>read(3, "{ \n  \"device_name\": \"Silverbox\","..., 2283) = 2283 <0.000032>close(3)                                = 0 <0.000032>--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x4} ---rt_sigaction(SIGSEGV, NULL, {0x5f62d0, [ILL ABRT BUS FPE SEGV], SA_RESTORER|SA_STACK|SA_SIGINFO, 0x7f1e73075740}, 8) = 0 <0.000031>prctl(PR_SET_DUMPABLE, 1)               = 0 <0.000029>gettid()                                = 12012 <0.000027>mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1e73fff000 <0.000043>pipe([3, 4])                            = 0 <0.000037>clone(child_stack=0x7f1e74000f40, flags=CLONE_FS|CLONE_FILES|CLONE_UNTRACED) = 12013 <0.000133>prctl(PR_SET_PTRACER, 0x2eed, 0, 0, 0)  = 0 <0.000040>write(4, "a", 1)                        = 1 <0.000036>wait4(12013, [{WIFEXITED(s) && WEXITSTATUS(s) == 1}], __WALL, NULL) = 12013 <0.000489>close(3)                                = 0 <0.000036>close(4)                                = 0 <0.000037>munmap(0x7f1e73fff000, 8192)            = 0 <0.000047>rt_sigaction(SIGSEGV, {SIG_DFL, [], SA_RESTORER, 0x7f1e73075740}, NULL, 8) = 0 <0.000029>rt_sigaction(SIGABRT, {SIG_DFL, [], SA_RESTORER, 0x7f1e73075740}, NULL, 8) = 0 <0.000028>rt_sigaction(SIGFPE, {SIG_DFL, [], SA_RESTORER, 0x7f1e73075740}, NULL, 8) = 0 <0.000029>rt_sigaction(SIGILL, {SIG_DFL, [], SA_RESTORER, 0x7f1e73075740}, NULL, 8) = 0 <0.000027>rt_sigaction(SIGBUS, {SIG_DFL, [], SA_RESTORER, 0x7f1e73075740}, NULL, 8) = 0 <0.000026>gettid()                                = 12012 <0.000027>tgkill(12012, 12012, SIGSEGV)           = 0 <0.000029>rt_sigreturn()                          = 0 <0.000028>--- SIGSEGV {si_signo=SIGSEGV, si_code=SI_TKILL, si_pid=12012, si_uid=1000} ---+++ killed by SIGSEGV (core dumped) +++[1]    12007 segmentation fault (core dumped)  strace -fFT btsync --config .config/btsync/btsync.conf --nodaemon --log log

Using a default config file makes it dump with SIGABRT, for apparently a different reason:

[snip]12553 read(5, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\r\0\0\0\r\0\0\0\0"..., 4096) = 1872 <0.000010>12553 close(5)                          = 0 <0.000010>12553 munmap(0x7f1132f71000, 4096)      = 0 <0.000014>12553 fstat(4, {st_mode=S_IFREG|0644, st_size=13945, ...}) = 0 <0.000009>12553 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1132f71000 <0.000011>12553 write(4, "[14:18:16.195] Can't open file /"..., 100) = 100 <0.000013>12553 write(2, "btsync: /mnt/jenkins/workspace/B"..., 219) = 219 <0.000223>12553 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1132f70000 <0.000013>12553 rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0 <0.000010>12553 tgkill(12553, 12553, SIGABRT)     = 0 <0.000012>12553 --- SIGABRT {si_signo=SIGABRT, si_code=SI_TKILL, si_pid=12553, si_uid=1000} ---12553 rt_sigaction(SIGABRT, NULL, {0x5f62d0, [ILL ABRT BUS FPE SEGV], SA_RESTORER|SA_STACK|SA_SIGINFO, 0x7f1131fe6740}, 8) = 0 <0.000009>12553 prctl(PR_SET_DUMPABLE, 1)         = 0 <0.000009>12553 gettid()                          = 12553 <0.000009>12553 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1132f6e000 <0.000012>12553 pipe([5, 6])                      = 0 <0.000015>12553 clone(child_stack=0x7f1132f6ff40, flags=CLONE_FS|CLONE_FILES|CLONE_UNTRACED) = 12554 <0.000109>12553 prctl(PR_SET_PTRACER, 0x310a, 0, 0, 0) = 0 <0.000009>12553 write(6, "a", 1)                  = 1 <0.000013>12553 wait4(12554, [{WIFEXITED(s) && WEXITSTATUS(s) == 1}], __WALL, NULL) = 12554 <0.000891>12553 close(5)                          = 0 <0.000014>12553 close(6)                          = 0 <0.000016>12553 munmap(0x7f1132f6e000, 8192)      = 0 <0.000016>12553 rt_sigaction(SIGSEGV, {SIG_DFL, [], SA_RESTORER, 0x7f1131fe6740}, NULL, 8) = 0 <0.000010>12553 rt_sigaction(SIGABRT, {SIG_DFL, [], SA_RESTORER, 0x7f1131fe6740}, NULL, 8) = 0 <0.000009>12553 rt_sigaction(SIGFPE, {SIG_DFL, [], SA_RESTORER, 0x7f1131fe6740}, NULL, 8) = 0 <0.000009>12553 rt_sigaction(SIGILL, {SIG_DFL, [], SA_RESTORER, 0x7f1131fe6740}, NULL, 8) = 0 <0.000009>12553 rt_sigaction(SIGBUS, {SIG_DFL, [], SA_RESTORER, 0x7f1131fe6740}, NULL, 8) = 0 <0.000009>12553 gettid()                          = 12553 <0.000009>12553 tgkill(12553, 12553, SIGABRT)     = 0 <0.000011>12553 rt_sigreturn()                    = 0 <0.000011>12553 --- SIGABRT {si_signo=SIGABRT, si_code=SI_TKILL, si_pid=12553, si_uid=1000} ---12553 +++ killed by SIGABRT (core dumped) +++

How can I fix this?
 

 

378
Edited by DickPhallia

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I did mail Priority Support as a paid Sync Pro subscriber, and I was referred to this forum. Way to go...

Edited by grobot

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