[
https://issues.apache.org/jira/browse/TS-3248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14251885#comment-14251885
]
Sudheer Vinukonda edited comment on TS-3248 at 12/18/14 5:02 PM:
-----------------------------------------------------------------
[~tufang14] - I wonder if the fix for TS-3226 would address this
(3c1aee78b46282f91e7f92369a2ff3231304117c). Could you please cherry pick this
fix and see if it resolves the crash? Based on your confirmation, we can pull
this into 5.2.0? Thanks!
was (Author: sudheerv):
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 0x000000000073334a in operator IOBufferBlock* (nh=0x2b4d9e1e8b50,
> vc=0x2aaac11114d0, thread=0x2b4d9e1e5010) at ../../lib/ts/Ptr.h:326
> #1 first_write_block (nh=0x2b4d9e1e8b50, vc=0x2aaac11114d0,
> thread=0x2b4d9e1e5010) at ../../iocore/eventsystem/I_IOBuffer.h:920
> #2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac11114d0,
> thread=0x2b4d9e1e5010) at UnixNetVConnection.cc:244
> #3 0x0000000000727a62 in NetHandler::mainNetEvent (this=0x2b4d9e1e8b50,
> event=<value optimized out>, e=<value optimized out>) at UnixNet.cc:399
> #4 0x00000000007538f5 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 0x000000000075404b in EThread::execute (this=0x2b4d9e1e5010) at
> UnixEThread.cc:268
> #7 0x0000000000752d3a in spawn_thread_internal (a=0x157a1b0) at Thread.cc:88
> #8 0x00002b4d9b0fa9d1 in start_thread () from /lib64/libpthread.so.0
> #9 0x00002b4d9c0f19dd in clone () from /lib64/libc.so.6
> (gdb) f 2
> #2 read_from_net (nh=0x2b4d9e1e8b50, vc=0x2aaac11114d0,
> 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 &) @0x2aaac1111608: {mbuf = 0x0, entry = 0x0}
> (gdb) p toread
> $2 = 7768
> (gdb)
> {code}
> at line 244 ,mbuf = 0x0, so buf.writer() return NULL
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
