According to top dtnrecv eats 35% of memory right before it terminates.
Here are the last lines of strace output for dtnrecv: ---------------------------------------------------------------------------------------------------------- recvfrom(8, "dtn!\3\1\0\n\20dtn://node-2.dtn", 5120, 0, NULL, NULL) = 25 mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f0ec28fd000 mprotect(0x7f0ec28fd000, 4096, PROT_NONE) = 0 clone(child_stack=0x7f0ec2afcf10, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f0ec2afd9d0, tls=0x7f0ec2afd700, child_tidptr=0x7f0ec2afd9d0) = 3456 fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 3), ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0ec2b10000 write(1, "Wait for incoming bundle... \n", 29Wait for incoming bundle... ) = 29 open("/var/tmp/1.iso", O_RDWR|O_CREAT|O_TRUNC, 0666) = 9 futex(0x7fffadbc8174, FUTEX_WAIT_PRIVATE, 1, NULL ) = 0 futex(0x7fffadbc8140, FUTEX_WAKE_PRIVATE, 1) = 0 close(9) = 0 write(4, "i", 1) = 1 write(6, "i", 1) = 1 close(8) = 0 close(3) = 0 close(4) = 0 close(5) = 0 close(6) = 0 write(2, "Aborted.", 8Aborted.) = 8 write(2, "\n", 1 ) = 1 exit_group(1) = ? ----------------------------------------------------------------------------------------------------------
Is there any debug information or test results, that I can supply?
Thu, 04 Oct 2012 17:41:30 +0400 от Sergey Sireskin sire@mail.ru:
An addition to my previous post.
I have added 1Gb more RAM to node2 and retried my test. Dtnrecv still terminates with the "Aborted." message. It seems that a memory leak takes place.
Is there any way I can debug this case?
Thu, 04 Oct 2012 14:06:27 +0400 от Sergey Sireskin sire@mail.ru:
Hello, IBR-DTN developers and users!
I suspect that IBR-DRN does excessive work on copying files while doing dtnrecv. ....
Best Regards, Sergey Syreskin
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