-- Robbert
---------- Forwarded message ---------- Date: Tue, 29 Mar 2005 16:49:35 +0200 (CEST) From: Robbert Kouprie <[EMAIL PROTECTED]> Reply-To: [email protected] To: [email protected] Subject: RE: [Ntop-dev] Double free at shutdown in latest ntop
Collected a backtrace, hope this helps.
-- Robbert
(gdb) c Continuing. *** glibc detected *** double free or corruption (!prev): 0x08d4c118 ***
Program received signal SIGABRT, Aborted.
[Switching to Thread -1265636432 (LWP 3117)]
0x0036c7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
(gdb) bt
#0 0x0036c7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1 0x026de955 in raise () from /lib/tls/libc.so.6
#2 0x026e0319 in abort () from /lib/tls/libc.so.6
#3 0x02711f8a in __libc_message () from /lib/tls/libc.so.6
#4 0x027184f8 in _int_free () from /lib/tls/libc.so.6
#5 0x02718aca in free () from /lib/tls/libc.so.6
#6 0x003991d9 in ntop_safefree (ptr=0x27dd800, file=0x3c6217 "util.c", line=6542) at leaks.c:628
#7 0x003b4424 in freePortsUsage (ports=0x8d4c118) at util.c:6542
#8 0x00391489 in freeHostInfo (host=0x8d624e8, actualDeviceId=0) at hash.c:429
#9 0x00391e5d in freeHostInstances (actualDeviceId=0) at hash.c:556
#10 0x0039a9e4 in cleanup (signo=0) at ntop.c:941
#11 0x0020438b in shutdownNtop () at webInterface.c:916
#12 0x001cbcf7 in handleHTTPrequest (from=
{hostFamily = 10, addr = {_hostIp4Address = {s_addr = 0}, _hostIp6Address = {in6_u = {u6_addr8 = "\000\000\000\000\000\000\000\000\000\020\000\000\000\000\000", u6_addr16 = {0, 0, 0, 0, 4096, 0, 0, 0}, u6_addr32 = {0, 0, 4096, 0}}}}}) at http.c:2390
#13 0x002045aa in handleWebConnections (notUsed=0x0) at webInterface.c:9069
#14 0x0015c3ae in start_thread () from /lib/tls/libpthread.so.0
#15 0x0277daee in clone () from /lib/tls/libc.so.6
On Tue, 29 Mar 2005, Burton Strauss wrote:
Robbert - can you run it under gdb so we can figure out precisely which statement that address maps to? Thanks! -----Burton
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robbert Kouprie Sent: Tuesday, March 29, 2005 6:40 AM To: [email protected] Subject: [Ntop-dev] Double free at shutdown in latest ntop
Hi,
FYI,
Once in a few times I get a double free error from glibc with the latest ntop CVS (picked up this morning). This is RedHat Enterprise Linux AS 4.0 with kernel 2.6.9-5.0.3.ELsmp and glibc 2.3.4-2 (both standard).
It happens when I do a shutdown from the webinterface, and from the log it seems to be located in the FREE_HOST routine.
This is ntop with virtual Netflow device.
Mar 29 14:30:53 ntop2 ntop[21809]: [MSGID0538544] Shutdown request has been received Mar 29 14:30:53 ntop2 ntop[21809]: [MSGID8462800] CLEANUP: ntop caught signal 0 Mar 29 14:30:53 ntop2 ntop[21809]: [MSGID8696238] CLEANUP: Cleaning up, set FLAG_NTOPSTATE_TERM Mar 29 14:30:53 ntop2 ntop[21809]: [MSGID8905482] SIGPIPE: Handled (ignored) 0 errors Mar 29 14:30:53 ntop2 ntop[21809]: [MSGID8844426] CLEANUP: Locking purge mutex (may block for a little while) Mar 29 14:30:53 ntop2 ntop[21809]: [MSGID8814988] CLEANUP: Locked purge mutex, continuing shutdown Mar 29 14:30:53 ntop2 ntop[21809]: [MSGID8638895] FREE_HOST: Start, 2 device(s) Mar 29 14:30:53 ntop2 ntop[21809]: *** glibc detected *** double free or corruption (out): 0xb3f2cbd0 ***
After which ntop dies.
Regards, Robbert _______________________________________________ Ntop-dev mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-dev
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