[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14255340#comment-14255340
]
Qiang Li commented on TS-3248:
--
it wroks will :)
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.3.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14255013#comment-14255013
]
bettydramit commented on TS-3248:
-
With this patch,it has been running in production with no crashes for over 24
hours.
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14255021#comment-14255021
]
ASF subversion and git services commented on TS-3248:
-
Commit 9115cb6d4716ada0c66d5b6970d2674592cb2355 in trafficserver's branch
refs/heads/master from [~sudheerv]
[ https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;h=9115cb6 ]
[TS-3248]: Fix with Susan's help to resolve crash introduced in TS-3189
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14255023#comment-14255023
]
bettydramit commented on TS-3248:
-
Perfect！
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.3.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14255025#comment-14255025
]
bettydramit commented on TS-3248:
-
Good job
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.3.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14253540#comment-14253540
]
Sudheer Vinukonda commented on TS-3248:
---
Debugged this further and it looks to me that this may be caused by TS-3189
(a34bebbe5bf432c9d27052a31c68dadef46e32c7). The changes in TS-3189 call
{{do_io_read}} with NULL MIOBuffer, which would result in clearing the writer
{{read.vio.buffer}}. Testing now by reverting this commit - don't see the core
dump so far. Will monitor further and update.
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14253799#comment-14253799
]
Sudheer Vinukonda commented on TS-3248:
---
Discussed with [~shinrich] on the IRC and trying a fix for the crash with the
below diff:
{code}
diff --git a/proxy/http/HttpSM.cc b/proxy/http/HttpSM.cc
index 5f07f8c..c8a011d 100644
--- a/proxy/http/HttpSM.cc
+++ b/proxy/http/HttpSM.cc
@@ -575,7 +575,7 @@ HttpSM::attach_client_session(HttpClientSession *
client_vc, IOBufferReader * bu
// this hook maybe asynchronous, we need to disable IO on
// client but set the continuation to be the state machine
// so if we get an timeout events the sm handles them
- ua_entry-read_vio = client_vc-do_io_read(this, 0, NULL);
+ ua_entry-read_vio = client_vc-do_io_read(this, 0, buffer_reader-mbuf);
/
// set up timeouts //
{code}
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14253862#comment-14253862
]
Sudheer Vinukonda commented on TS-3248:
---
The above patch didn't seem to help. So, trying a new patch as below:
{code}
diff --git a/proxy/http/HttpSM.cc b/proxy/http/HttpSM.cc
index 5f07f8c..e88ed43 100644
--- a/proxy/http/HttpSM.cc
+++ b/proxy/http/HttpSM.cc
@@ -575,7 +575,7 @@ HttpSM::attach_client_session(HttpClientSession *
client_vc, IOBufferReader * bu
// this hook maybe asynchronous, we need to disable IO on
// client but set the continuation to be the state machine
// so if we get an timeout events the sm handles them
- ua_entry-read_vio = client_vc-do_io_read(this, 0, NULL);
+ ua_entry-read_vio = client_vc-do_io_read(this, 0, buffer_reader-mbuf);
/
// set up timeouts //
@@ -1989,6 +1989,10 @@ HttpSM::state_send_server_request_header(int event, void
*data)
handle_server_setup_error(event, data);
break;
+ case VC_EVENT_READ_COMPLETE:
+// new event expected due to TS-3189
+break;
+
default:
ink_release_assert(0);
break;
@@ -5658,7 +5662,7 @@ HttpSM::attach_server_session(HttpServerSession * s)
// first tunnel instead of the producer of the second tunnel.
// The real read is setup in setup_server_read_response_header()
//
- server_entry-read_vio = server_session-do_io_read(this, 0, NULL);
+ server_entry-read_vio = server_session-do_io_read(this, 0,
server_session-read_buffer);
// Transfer control of the write side as well
server_session-do_io_write(this, 0, NULL);
{code}
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14253991#comment-14253991
]
Sudheer Vinukonda commented on TS-3248:
---
The above patch looks good, no crashes so far.
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14254394#comment-14254394
]
Qiang Li commented on TS-3248:
--
thank you, i will test the above patch :)
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14254436#comment-14254436
]
Sudheer Vinukonda commented on TS-3248:
---
Thanks, [~tufang14] - that would be great!
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
--
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14251885#comment-14251885
]
Sudheer Vinukonda commented on TS-3248:
---
I wonder if the fix for TS-3226 would address this
(3c1aee78b46282f91e7f92369a2ff3231304117c).
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Reporter: Qiang Li
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14252143#comment-14252143
]
Sudheer Vinukonda commented on TS-3248:
---
I am seeing this core (both via UnixNetVConnection.cc and SSLNetVConnection.cc)
also in 5.2 on our cache production hosts and it seems to happen with/without
the fix in TS-3226.
{code}
(gdb) bt full
#0 0x004ee4b4 in PtrIOBufferBlock::operator IOBufferBlock*
(this=0x10) at ../lib/ts/Ptr.h:326
No locals.
#1 0x0052a190 in MIOBuffer::first_write_block (this=0x0) at
../iocore/eventsystem/I_IOBuffer.h:920
No locals.
#2 0x0073cba4 in ssl_read_from_net (sslvc=0x2b3bdc018790,
lthread=0x2b3b71448010, ret=@0x2b3b72d5fb40) at SSLNetVConnection.cc:184
s = 0x2b3bdc0188a0
buf = @0x2b3bdc0188c8
bytes_read = 8192
block_write_avail = 0
__func__ = ssl_read_from_net
b = 0x2b3b72d5fab0
event = 11068
sslErr = 11067
nread = 47537243037472
#3 0x0073dd28 in SSLNetVConnection::net_read_io (this=0x2b3bdc018790,
nh=0x2b3b7144bad0, lthread=0x2b3b71448010) at SSLNetVConnection.cc:547
ret = 0
bytes = 0
s = 0x2b3bdc0188a0
__func__ = net_read_io
buf = @0x2b3bdc0188c8
r = 0
lock = {m = {m_ptr = 0x2be4930}, lock_acquired = true}
ntodo = 9223372036854775807
#4 0x0074c429 in NetHandler::mainNetEvent (this=0x2b3b7144bad0,
event=5, e=0x2710130) at UnixNet.cc:399
epd = 0x2b3bdc0189a0
pd = 0x2b3b7810
__func__ = mainNetEvent
poll_timeout = 10
vc = 0x2b3bdc018790
#5 0x00502eae in Continuation::handleEvent (this=0x2b3b7144bad0,
event=5, data=0x2710130) at ../iocore/eventsystem/I_Continuation.h:146
No locals.
#6 0x00773062 in EThread::process_event (this=0x2b3b71448010,
e=0x2710130, calling_code=5) at UnixEThread.cc:144
c_temp = 0x2b3b7144bad0
lock = {m = {m_ptr = 0x2be5510}, lock_acquired = true}
#7 0x0077356c in EThread::execute (this=0x2b3b71448010) at
UnixEThread.cc:268
done_one = false
e = 0x2710130
NegativeQueue = {DLLEvent, Event::Link_link = {head = 0x0}, tail =
0x0}
next_time = 1418930647029084374
#8 0x0077261d in spawn_thread_internal (a=0x2ca60e0) at Thread.cc:88
p = 0x2ca60e0
#9 0x2b3ac42ed851 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#10 0x003296ee890d in clone () from /lib64/libc.so.6
No symbol table info available.
{code}
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Reporter: Qiang Li
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14252580#comment-14252580
]
Leif Hedstrom commented on TS-3248:
---
Is this new in v5.2.0, or in older versions too ?
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Reporter: Qiang Li
Fix For: 5.3.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14252581#comment-14252581
]
Leif Hedstrom commented on TS-3248:
---
Sudheer: Please make a judgement call if this is a show stopper for v5.2.0.
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Labels: crash
Fix For: 5.3.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14252621#comment-14252621
]
Sudheer Vinukonda commented on TS-3248:
---
Hi [~zwoop] - unfortunately, this looks like a blocker for v5.2.0. I saw this
every few min on our production host in the short duration I ran 5.2.0 for.
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Labels: crash
Fix For: 5.3.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14252723#comment-14252723
]
Qiang Li commented on TS-3248:
--
i just find this in 5.2.0, and i will test the pacth in TS-3226
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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[jira] [Commented] (TS-3248) 5.2.0 Segmentation fault
[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14252748#comment-14252748
]
Sudheer Vinukonda commented on TS-3248:
---
Analyzing the core further, it seems that the {{buf.writer()}} is not null
{{https://github.com/apache/trafficserver/blob/5.2.x/iocore/net/UnixNetVConnection.cc#L235}},
but becomes null in
{{https://github.com/apache/trafficserver/blob/5.2.x/iocore/net/UnixNetVConnection.cc#L244}},
which makes me wonder if some other thread is corrupting/modifying the
{{buf.writer()}}.
5.2.0 Segmentation fault
Key: TS-3248
URL: https://issues.apache.org/jira/browse/TS-3248
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 5.2.0
Reporter: Qiang Li
Assignee: Sudheer Vinukonda
Priority: Blocker
Labels: crash
Fix For: 5.2.0
Segmentation fault sometime
{code}
(gdb) bt
#0 0x0073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
vc=0x2aaac4d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
#1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
#3 0x00727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
event=value optimized out, e=value optimized out) at UnixNet.cc:399
#4 0x007538f5 in handleEvent (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at I_Continuation.h:146
#5 EThread::process_event (this=0x2b4d9e1e5010, e=0x2b4d9f806d80,
calling_code=5) at UnixEThread.cc:144
#6 0x0075404b in EThread::execute (this=0x2b4d9e1e5010) at
UnixEThread.cc:268
#7 0x00752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
#8 0x2b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
#9 0x2b4d9c0f19dd in clone () from /lib64/libc.so.6
(gdb) f 2
#2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac4d0,
thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
244 IOBufferBlock *b = buf.writer()-first_write_block();
(gdb) l
239 // read data
240 int64_t rattempted = 0, total_read = 0;
241 int niov = 0;
242 IOVec tiovec[NET_MAX_IOV];
243 if (toread) {
244 IOBufferBlock *b = buf.writer()-first_write_block();
245 do {
246 niov = 0;
247 rattempted = 0;
248 while (b niov NET_MAX_IOV) {
(gdb) p buf
$1 = (MIOBufferAccessor ) @0x2aaac608: {mbuf = 0x0, entry = 0x0}
(gdb) p toread
$2 = 7768
(gdb)
{code}
at line 244 ,mbuf = 0x0, so buf.writer() return NULL
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