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https://issues.apache.org/jira/browse/TS-3277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14735124#comment-14735124
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Dave Thompson commented on TS-3277:
-----------------------------------
A quick status update:
Core traces showing crash in SHA1_Update() appear to be common amongst OpensSSL
users in multi-threaded applications. Crypto lib has a thread locking
mechanism which if not used, often leads to crashes here.
I traced the issue to an yahoo internally used plugin that had a dependency on
a package that was setting the openssl thread locking callback. There can
only be one openssl thread lock callback in an execution space, and so this
plugin was trashing the one we set in ATS. Currently testing fix, and will
update the ticket after a period of time the fix runs in production.
Currently working under the assumption that this issue was only reported by
Yahoo.
> Core durring ssl handshake
> --------------------------
>
> Key: TS-3277
> URL: https://issues.apache.org/jira/browse/TS-3277
> Project: Traffic Server
> Issue Type: Bug
> Components: SSL
> Affects Versions: 5.3.0
> Reporter: Bryan Call
> Assignee: Bryan Call
> Labels: yahoo
> Fix For: 6.0.0
>
>
> Running 5.2.0 RC4:
> {code}
> (gdb) bt full
> #0 0x0000003bae4758a3 in ?? () from /usr/lib64/libcrypto.so.10
> No symbol table info available.
> #1 0xca62c1d6ca62c1d6 in ?? ()
> No symbol table info available.
> #2 0xca62c1d6ca62c1d6 in ?? ()
> No symbol table info available.
> #3 0xca62c1d6ca62c1d6 in ?? ()
> No symbol table info available.
> #4 0xca62c1d6ca62c1d6 in ?? ()
> No symbol table info available.
> #5 0xca62c1d6ca62c1d6 in ?? ()
> No symbol table info available.
> #6 0xca62c1d6ca62c1d6 in ?? ()
> No symbol table info available.
> #7 0xca62c1d6ca62c1d6 in ?? ()
> No symbol table info available.
> #8 0xca62c1d6ca62c1d6 in ?? ()
> No symbol table info available.
> #9 0x0000003bae7df7d9 in ?? () from /usr/lib64/libcrypto.so.10
> No symbol table info available.
> #10 0x00002b87e3249600 in ?? ()
> No symbol table info available.
> #11 0x0000000000000026 in ?? () at P_CacheArray.h:157
> No symbol table info available.
> ---Type <return> to continue, or q <return> to quit---
> #12 0x0000003bae472d27 in SHA1_Update () from /usr/lib64/libcrypto.so.10
> No symbol table info available.
> #13 0x0000003bae4e6254 in ?? () from /usr/lib64/libcrypto.so.10
> No symbol table info available.
> #14 0x0000003bae830bb3 in ssl23_connect () from /usr/lib64/libssl.so.10
> No symbol table info available.
> #15 0x000000000074877c in SSLConnect (ssl=0x2b87e27f6130) at SSLUtils.cc:1937
> ret = 0
> #16 0x000000000073fe60 in SSLNetVConnection::sslClientHandShakeEvent (
> this=0x2b88706bca90, err=@0x2b8698503af8) at SSLNetVConnection.cc:1080
> __func__ = "sslClientHandShakeEvent"
> ssl_error = 2301
> #17 0x000000000073f58c in SSLNetVConnection::sslStartHandShake (
> this=0x2b88706bca90, event=1, err=@0x2b8698503af8)
> at SSLNetVConnection.cc:886
> __func__ = "sslStartHandShake"
> #18 0x0000000000753150 in write_to_net_io (nh=0x2b8691f56ad0,
> vc=0x2b88706bca90, thread=0x2b8691f53010) at UnixNetVConnection.cc:376
> err = -1846202352
> ret = 38197360
> buf = @0x740777
> wattempted = 2644
> lock = {m = {m_ptr = 0x2b86d812a4a0}, lock_acquired = true}
> towrite = 1
> ---Type <return> to continue, or q <return> to quit---
> signalled = 10
> total_written = 47856974376976
> r = 47856974376976
> s = 0x2b88706bcc08
> mutex = 0x2c59e30
> ntodo = 47857081006960
> needs = 0
> #19 0x000000000075300e in write_to_net (nh=0x2b8691f56ad0, vc=0x2b88706bca90,
> thread=0x2b8691f53010) at UnixNetVConnection.cc:353
> mutex = 0x2c59e30
> #20 0x000000000074c779 in NetHandler::mainNetEvent (this=0x2b8691f56ad0,
> event=5, e=0x25a2f30) at UnixNet.cc:415
> epd = 0x2b8870121990
> pd = 0x2b8699ec8010
> __func__ = "mainNetEvent"
> poll_timeout = 0
> vc = 0x2b88706bca90
> #21 0x0000000000502f98 in Continuation::handleEvent (this=0x2b8691f56ad0,
> event=5, data=0x25a2f30) at ../iocore/eventsystem/I_Continuation.h:146
> No locals.
> #22 0x000000000077330e in EThread::process_event (this=0x2b8691f53010,
> e=0x25a2f30, calling_code=5) at UnixEThread.cc:144
> c_temp = 0x2b8691f56ad0
> lock = {m = {m_ptr = 0x307be70}, lock_acquired = true}
> ---Type <return> to continue, or q <return> to quit---
> #23 0x0000000000773818 in EThread::execute (this=0x2b8691f53010)
> at UnixEThread.cc:268
> done_one = false
> e = 0x25a2f30
> NegativeQueue = {<DLL<Event, Event::Link_link>> = {head = 0x0},
> tail = 0x0}
> next_time = 1420578155814685026
> #24 0x00000000007728c9 in spawn_thread_internal (a=0x2d296d0) at Thread.cc:88
> p = 0x2d296d0
> #25 0x00002b85ddb4d851 in start_thread () from /lib64/libpthread.so.0
> No symbol table info available.
> #26 0x00000033522e890d in clone () from /lib64/libc.so.6
> {code}
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