Can you try the debug version?

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On 01/28/15 19:56, Avi Kivity wrote:

Can you try the debug version?

Yes. Debug seems to report trash. Note that the below is reported before
DHCP discovery is over which we know is ending with success in a release
version.

DHCP sending discover

ASAN:SIGSEGV

==7801==ERROR: AddressSanitizer: SEGV on unknown address 0x602000076480 (pc 0x00000074e165 sp 0x7fff92516e58 bp 0x7fff92516ee0 T0)
#0 0x74e164 in ixgbe_xmit_pkts (/home/ubuntu/seastar/build/debug/apps/httpd/httpd+0x74e164)
#1 0x4b8527 in rte_eth_tx_burst /home/ubuntu/dpdk/x86_64-native-linuxapp-gcc/include/rte_ethdev.h:2546
#2 0x4bdc64 in dpdk::dpdk_qp::send(circular_buffer<net::packet, std::allocatornet::packet >&) net/dpdk.cc:685
#3 0x4d46b4 in net::qp::poll_tx() net/net.cc:35
#4 0x4c96dd in operator() net/net.cc:44
#5 0x4ce7eb in std::unique_ptr<reactor::pollfn, std::default_deletestd::unique_ptr > reactor::make_pollfnnet::qp::qp()::{lambda()#1}(net::qp::qp()::{lambda()#1}&&)::the_pollfn::poll_and_check_more_work() (/home/ubuntu/seastar/build/debug/apps/httpd/httpd+0x4ce7eb)
#6 0x5d66cf in reactor::poll_once() core/reactor.cc:795
#7 0x5d623d in reactor::run() core/reactor.cc:774
#8 0x6ab047 in app_template::run(int, char**, std::function<void ()>&&) core/app-template.cc:73
#9 0x40ef77 in main apps/httpd/httpd.cc:245
#10 0x7f90f7373ec4 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21ec4)
#11 0x40def2 (/home/ubuntu/seastar/build/debug/apps/httpd/httpd+0x40def2)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV ??:0 ixgbe_xmit_pkts
==7801==ABORTING

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#20 (comment).

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On 01/28/2015 08:04 PM, vladzcloudius wrote:

On 01/28/15 19:56, Avi Kivity wrote:

Can you try the debug version?

Yes. Debug seems to report trash. Note that the below is reported before
DHCP discovery is over which we know is ending with success in a release
version.

Can you bisect the debug build to find where the error started?

It seems unrelated to the patch.

DHCP sending discover

ASAN:SIGSEGV

==7801==ERROR: AddressSanitizer: SEGV on unknown address
0x602000076480 (pc 0x00000074e165 sp 0x7fff92516e58 bp 0x7fff92516ee0 T0)
#0 0x74e164 in ixgbe_xmit_pkts
(/home/ubuntu/seastar/build/debug/apps/httpd/httpd+0x74e164)
#1 0x4b8527 in rte_eth_tx_burst
/home/ubuntu/dpdk/x86_64-native-linuxapp-gcc/include/rte_ethdev.h:2546
#2 0x4bdc64 in dpdk::dpdk_qp::send(circular_buffer<net::packet,
std::allocatornet::packet >&) net/dpdk.cc:685
#3 0x4d46b4 in net::qp::poll_tx() net/net.cc:35
#4 0x4c96dd in operator() net/net.cc:44
#5 0x4ce7eb in std::unique_ptr<reactor::pollfn,
std::default_deletestd::unique_ptr >
reactor::make_pollfnnet::qp::qp()::{lambda()#1}(net::qp::qp()::{lambda()#1}&&)::the_pollfn::poll_and_check_more_work()
(/home/ubuntu/seastar/build/debug/apps/httpd/httpd+0x4ce7eb)
#6 0x5d66cf in reactor::poll_once() core/reactor.cc:795
#7 0x5d623d in reactor::run() core/reactor.cc:774
#8 0x6ab047 in app_template::run(int, char**, std::function<void
()>&&) core/app-template.cc:73
#9 0x40ef77 in main apps/httpd/httpd.cc:245
#10 0x7f90f7373ec4 in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x21ec4)
#11 0x40def2 (/home/ubuntu/seastar/build/debug/apps/httpd/httpd+0x40def2)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV ??:0 ixgbe_xmit_pkts
==7801==ABORTING

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#20 (comment).

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#20 (comment).

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duplicate of #18

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