Hi all,
----- "Jan Schulze" <schulze AT informatik.uni-tuebingen DOT de> wrote:
> Hi all,
>
> I have been using Bacula 2.2.8 with an Overland ArcVault 24 for a long
> time without problems. Recently, the SD is dying every night before
> the first backup. I get the following GDB traceback and the backups
> fail due to "Comm error with SD" (of course).
>
> Using host libthread_db library "/lib64/libthread_db.so.1".
> [Thread debugging using libthread_db enabled]
> [New Thread 46912498413632 (LWP 10906)]
> [New Thread 1105209664 (LWP 12948)]
> [New Thread 1094719808 (LWP 10909)]
> 0x00000036482c7922 in select () from /lib64/libc.so.6
> $1 = "cambridge-sd", '\0' <repeats 17 times>
> $2 = 0xf10088 "bacula-sd"
> $3 = 0xf100c8 "/raid/export/soft/bacula-2.2.8/sbin/bacula-sd"
> $4 = 0x0
> $5 = 0x4fc07a "2.2.8 (26 January 2008)"
> $6 = 0x4f78a6 "x86_64-unknown-linux-gnu"
> $7 = 0x4f78c3 "redhat"
> $8 = 0x4f78bf "5.1"
> #0 0x00000036482c7922 in select () from /lib64/libc.so.6
> #1 0x0000000000436a74 in bnet_thread_server (addrs=0xf11df8,
> max_clients=41,
> client_wq=0x766c20,
> handle_client_request=0x41b440 <handle_connection_request(void*)>)
> at bnet_server.c:161
> #2 0x0000000000409519 in main (argc=<value optimized out>,
> argv=<value optimized out>) at stored.c:265
>
> Thread 3 (Thread 1094719808 (LWP 10909)):
> #0 0x0000003648e0a687 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
> from /lib64/libpthread.so.0
> #1 0x000000000044d6bd in watchdog_thread (arg=<value optimized out>)
> at watchdog.c:307
> #2 0x0000003648e062e7 in start_thread () from /lib64/libpthread.so.0
> #3 0x00000036482ce3bd in clone () from /lib64/libc.so.6
>
> Thread 2 (Thread 1105209664 (LWP 12948)):
> #0 0x0000003648e0d9ef in waitpid () from /lib64/libpthread.so.0
> #1 0x000000000044afb1 in signal_handler (sig=11) at signal.c:167
> #2 <signal handler called>
> #3 e_msg (file=0x4ef165 "dev.c", line=724, type=1,
> level=<value optimized out>,
> fmt=0xf11fb0 "dev.c:723 Bad call to rewind. Device \"Drive-1\"
> (/dev/nst0) not open\n") at message.c:1062
> #4 0x00000000004177dc in DEVICE::rewind (this=0xf13f78, dcr=0xf28dd8)
> at dev.c:724
> #5 0x0000000000422aff in read_dev_volume_label (dcr=0xf28dd8) at
> label.c:261
> #6 0x00000000004262c0 in mount_next_write_volume (dcr=0xf28dd8,
> have_vol=<value optimized out>, release=false) at mount.c:234
> #7 0x000000000040d99e in acquire_device_for_append (dcr=0xf28dd8)
> at acquire.c:422
> #8 0x000000000040df62 in do_append_data (jcr=0xf26df8) at append.c:85
> #9 0x000000000041fe82 in append_data_cmd (jcr=0xf26df8) at
> fd_cmds.c:194
> #10 0x000000000041fade in do_fd_commands (jcr=0xf26df8) at
> fd_cmds.c:165
> #11 0x000000000041ffb5 in run_job (jcr=0xf26df8) at fd_cmds.c:128
> #12 0x00000000004203d7 in run_cmd (jcr=0xf26df8) at job.c:210
> #13 0x000000000041b7ad in handle_connection_request (arg=<value
> optimized out>)
> at dircmd.c:229
> #14 0x000000000044dc7f in workq_server (arg=<value optimized out>)
> at workq.c:357
> #15 0x0000003648e062e7 in start_thread () from /lib64/libpthread.so.0
> #16 0x00000036482ce3bd in clone () from /lib64/libc.so.6
>
> Thread 1 (Thread 46912498413632 (LWP 10906)):
> #0 0x00000036482c7922 in select () from /lib64/libc.so.6
> #1 0x0000000000436a74 in bnet_thread_server (addrs=0xf11df8,
> max_clients=41,
> client_wq=0x766c20,
> handle_client_request=0x41b440 <handle_connection_request(void*)>)
> at bnet_server.c:161
> #2 0x0000000000409519 in main (argc=<value optimized out>,
> argv=<value optimized out>) at stored.c:265
> #0 0x00000036482c7922 in select () from /lib64/libc.so.6
> #0 0x00000036482c7922 in select () from /lib64/libc.so.6
> No symbol table info available.
> #1 0x0000000000436a74 in bnet_thread_server (addrs=0xf11df8,
> max_clients=41,
> client_wq=0x766c20,
> handle_client_request=0x41b440 <handle_connection_request(void*)>)
> at bnet_server.c:161
> 161 if ((stat = select(maxfd + 1, &sockset, NULL, NULL,
> NULL)) < 0) {
> Current language: auto; currently c++
> maxfd = <value optimized out>
> sockset = {fds_bits = {16, 0 <repeats 15 times>}}
> newsockfd = <value optimized out>
> stat = <value optimized out>
> clilen = 16
> cli_addr = {sa_family = 2,
> sa_data = "�M\206\002\t\215\000\000\000\000\000\000\000"}
> tlog = <value optimized out>
> turnon = 1
> p = (IPADDR *) 0xf123e8
> fd_ptr = /etc/bacula/btraceback.gdb:14: Error in sourced command file:
> dwarf2_read_address: Corrupted DWARF expression.
>
>
> I was under the impression, that the tape drive might be broken,
> because of the "Device not open" part. However, I have run the btest
> program without any errors.
>
> Any suggestions, how to debug this?
It seems, as if the LTO-2 tape was the culprit. I deleted it from the catalog
and successfully performed a backup onto another tape. I then completely erased
the 'problem tape' and was able to use it for a second successful backup. It
seems, the problems are gone.
Regards,
Jan
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