Package: samba Version: 2:4.2.10+dfsg-0+deb8u2 Severity: important Tags: patch,upstream,fixed-upstream
Dear maintainers, after upgrading out clustered samba to samba 4.2.10 (thanks for that btw, it solved quite a few headaches of mine!) we started to exprience weird panics in samba that looked like this: BACKTRACE: 25 stack frames: #0 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(log_stack_trace+0x1a) [0x7f8fead79f5a] #1 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(smb_panic_s3+0x20) [0x7f8fead7a040] #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2f) [0x7f8feca33e5f] #3 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(update_num_read_oplocks+0x101) [0x7f8fec638881] #4 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1082dd) [0x7f8fec5e52dd] #5 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x10a2b1) [0x7f8fec5e72b1] #6 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(create_file_default+0x19c) [0x7f8fec5e86ac] #7 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1de8d9) [0x7f8fec6bb8d9] #8 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smb_vfs_call_create_file+0x77) [0x7f8fec5eef87] #9 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_process_create+0xdd8) [0x7f8fec61bdf8] #10 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_smb2_request_dispatch+0x9be) [0x7f8fec614fce] #11 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x138be8) [0x7f8fec615be8] #12 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x171) [0x7f8fead99a01] #13 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x49c77) [0x7f8fead99c77] #14 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7f8fe979c12d] #15 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7f8fe979c2cb] #16 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(smbd_process+0x718) [0x7f8fec6044a8] #17 /usr/sbin/smbd(+0xadd0) [0x7f8fed090dd0] #18 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(run_events_poll+0x171) [0x7f8fead99a01] #19 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(+0x49c77) [0x7f8fead99c77] #20 /usr/lib/x86_64-linux-gnu/libtevent.so.0(_tevent_loop_once+0x8d) [0x7f8fe979c12d] #21 /usr/lib/x86_64-linux-gnu/libtevent.so.0(tevent_common_loop_wait+0x1b) [0x7f8fe979c2cb] #22 /usr/sbin/smbd(main+0x17e5) [0x7f8fed08d5e5] #23 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f8fe940eb45] #24 /usr/sbin/smbd(+0x76e4) [0x7f8fed08d6e4] There also is an upstream bug[1] dealing with a slightly different issue that contains a fix[2] for this bug. After recompiling the debian version of samba with this patch applied, the issue has gone. Would be great to get that fix into Jessie: it is kind of a regression caused by the major update of ctdb and the tdb libs. -- Adi [1] https://bugzilla.samba.org/show_bug.cgi?id=11844 [2] https://attachments.samba.org/attachment.cgi?id=12042
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