[TS-1059] prefetch segmentation fault

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 3.0.2
• Component/s: HTTP
• Labels: crash

Environment

linux(ubuntu)

• Assignee: Unassigned
• Reporter: yunfei chen
• Created: 20/Dec/11 06:39
• Updated: 04/Nov/14 20:51
• Resolved: 04/Nov/14 20:51

Description

I encountered a segment faut when I was testing Prefetch module。

ab -n 1 -c 1 -X 192.168.16.198:8080 -d http://club.baobao.sohu.com/r-mmbb-3954004-0-29-900.html

configuration in records.config
CONFIG proxy.config.prefetch.prefetch_enabled INT 1
configuration in prefetch.config
prefetch_children 192.168.16.198
html_tag img src

#0 0x08124f17 in VIO::reenable (this=0x0) at ../iocore/eventsystem/P_VIO.h:123
#1 0x08147fe3 in KeepAliveConn::append (this=0xab9aef20, rdr=0x9c91b794) at Prefetch.cc:1984
#2 0x08145fd7 in KeepAliveConnTable::append (this=0xb2393608, ip=16777343, buf=0x9c91b780, reader=0x9c91b794) at Prefetch.cc:2039
#3 0x0814679b in KeepAliveLockHandler::handleEvent (this=0xb23e0b30, event=2, data=0x8ab2f60) at Prefetch.cc:2168
#4 0x08104ba5 in Continuation::handleEvent (this=0xb23e0b30, event=2, data=0x8ab2f60)
at ../iocore/eventsystem/I_Continuation.h:146
#5 0x0830a9f5 in EThread::process_event (this=0xb7396008, e=0x8ab2f60, calling_code=2) at UnixEThread.cc:140
#6 0x0830add5 in EThread::execute (this=0xb7396008) at UnixEThread.cc:217
#7 0x0830900e in spawn_thread_internal (a=0x895eed8) at Thread.cc:88
#8 0x00165cc9 in start_thread (arg=0xb6f91b70) at pthread_create.c:304
#9 0x0066f69e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

#0 0x08124f17 in VIO::reenable (this=0x0) at ../iocore/eventsystem/P_VIO.h:123
#1 0x08147fe3 in KeepAliveConn::append (this=0xa5736888, rdr=0x8d0b2f4) at Prefetch.cc:1984
#2 0x08145fd7 in KeepAliveConnTable::append (this=0xb2393608, ip=16777343, buf=0x8d0b2e0, reader=0x8d0b2f4) at Prefetch.cc:2039
#3 0x08141db3 in PrefetchUrlBlaster::udpUrlBlaster (this=0x8abd3e0, event=3300, data=0x0) at Prefetch.cc:885
#4 0x0813e4ea in PrefetchUrlBlaster::init (this=0x8abd3e0, list_head=0xabc59ac0, u_proto=TCP_BLAST) at Prefetch.h:280
#5 0x08147806 in BlasterUrlList::invokeUrlBlaster (this=0xa7c22260) at Prefetch.h:287
#6 0x08141ac8 in BlasterUrlList::handleEvent (this=0xa7c22260, event=3302, data=0xabc59ac0) at Prefetch.cc:803
#7 0x08143c89 in PrefetchBlaster::handleEvent (this=0xa5739920, event=2, data=0x0) at Prefetch.cc:1420
#8 0x08144f42 in PrefetchBlaster::invokeBlaster (this=0xa5739920) at Prefetch.cc:1769
#9 0x08143e22 in PrefetchBlaster::handleEvent (this=0xa5739920, event=1102, data=0xb23cdca0) at Prefetch.cc:1448
#10 0x08104ba5 in Continuation::handleEvent (this=0xa5739920, event=1102, data=0xb23cdca0)
at ../iocore/eventsystem/I_Continuation.h:146
#11 0x082c1abf in CacheVC::callcont (this=0xb23cdca0, event=1102) at P_CacheInternal.h:629
#12 0x082c1487 in CacheVC::openReadStartHead (this=0xb23cdca0, event=3900, e=0x0) at CacheRead.cc:1115
#13 0x08104ba5 in Continuation::handleEvent (this=0xb23cdca0, event=3900, data=0x0) at ../iocore/eventsystem/I_Continuation.h:146
#14 0x082c1431 in CacheVC::openReadStartHead (this=0xb23cdca0, event=2, e=0x8ab48a0) at CacheRead.cc:1112
#15 0x08104ba5 in Continuation::handleEvent (this=0xb23cdca0, event=2, data=0x8ab48a0)
at ../iocore/eventsystem/I_Continuation.h:146
#16 0x0830a9f5 in EThread::process_event (this=0xb7295008, e=0x8ab48a0, calling_code=2) at UnixEThread.cc:140
#17 0x0830add5 in EThread::execute (this=0xb7295008) at UnixEThread.cc:217
#18 0x0830900e in spawn_thread_internal (a=0x895dd00) at Thread.cc:88
#19 0x00165cc9 in start_thread (arg=0xb6e90b70) at pthread_create.c:304
#20 0x0066f69e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Issue Links

• is superceded by: TS-3167 Remove the prefetch feature