[rrd-developers] rrdcached crashed with no logging

[kevin brintnall]

On Tue, Oct 07, 2008 at 06:01:02PM -0700, Bernard Li wrote:
> It seems that the daemon crashed without logging to syslog.  I straced
> the rrdcached process and here's what I got:

Bernard,

Do you have a backtrace?  Also, what OS are you using?

The interrupted poll() system call is in listen_thread_main (you can tell
by the timeout of 1sec).

I would not expect to catch a SIGABRT.  Possibly an assertion is being
violated.  A backtrace would be very helpful.

-- 
 kevin brintnall =~ /kbrint at rufus.net/

> ---cut---
> accept(3, {sa_family=AF_FILE, path=@}, [2]) = 6
> mmap2(NULL, 10489856, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> -1, 0) = 0xb613d000
> mprotect(0xb613d000, 4096, PROT_NONE)   = 0
> clone(child_stack=0xb6b3d4c4,
> flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID|CLONE_DETACHED,
> parent_tidptr=0xb6b3dbe8, {entry_number:6, base_addr:0xb6b3dba0,
> limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
> limit_in_pages:1, seg_not_present:0, useable:1},
> child_tidptr=0xb6b3dbe8) = 10556
> poll([{fd=3, events=POLLIN|POLLPRI, revents=POLLIN}], 1, 1000) = 1
> accept(3, {sa_family=AF_FILE, path=@}, [2]) = 7
> mmap2(NULL, 10489856, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> -1, 0) = 0xb573c000
> mprotect(0xb573c000, 4096, PROT_NONE)   = 0
> clone(child_stack=0xb613c4c4,
> flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID|CLONE_DETACHED,
> parent_tidptr=0xb613cbe8, {entry_number:6, base_addr:0xb613cba0,
> limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
> limit_in_pages:1, seg_not_present:0, useable:1},
> child_tidptr=0xb613cbe8) = 10560
> poll([{fd=3, events=POLLIN|POLLPRI, revents=POLLIN}], 1, 1000) = 1
> brk(0x906f000)                          = 0x906f000
> futex(0x5ad820, FUTEX_WAKE, 1)          = 1
> accept(3, {sa_family=AF_FILE, path=@}, [2]) = 8
> mmap2(NULL, 10489856, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> -1, 0) = 0xb4bff000
> mprotect(0xb4bff000, 4096, PROT_NONE)   = 0
> clone(child_stack=0xb55ff4c4,
> flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID|CLONE_DETACHED,
> parent_tidptr=0xb55ffbe8, {entry_number:6, base_addr:0xb55ffba0,
> limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
> limit_in_pages:1, seg_not_present:0, useable:1},
> child_tidptr=0xb55ffbe8) = 10561
> poll([{fd=3, events=POLLIN|POLLPRI, revents=POLLIN}], 1, 1000) = 1
> accept(3, {sa_family=AF_FILE, path=@}, [2]) = 9
> mmap2(NULL, 10489856, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> -1, 0) = 0xb41fe000
> mprotect(0xb41fe000, 4096, PROT_NONE)   = 0
> clone(child_stack=0xb4bfe4c4,
> flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID|CLONE_DETACHED,
> parent_tidptr=0xb4bfebe8, {entry_number:6, base_addr:0xb4bfeba0,
> limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
> limit_in_pages:1, seg_not_present:0, useable:1},
> child_tidptr=0xb4bfebe8) = 10562
> poll([{fd=3, events=POLLIN|POLLPRI}], 1, 1000) = -1 EINTR (Interrupted
> system call)
> +++ killed by SIGABRT +++
> ---cut---
> 
> Ganglia was running `rrdtool graph - --daemon
> unix:/var/run/rrdcached/rrdcached.sock ...` command when it crashed.
> 
> Thanks,
> 
> Bernard
> 
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