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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.20.133; envelope-from=vsementsov@virtuozzo.com; helo=EUR05-DB8-obe.outbound.protection.outlook.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @virtuozzo.com) Content-Type: text/plain; charset="utf-8" I reproduced the following crash fast enough: 0 raise () at /lib64/libc.so.6 1 abort () at /lib64/libc.so.6 2 _nl_load_domain.cold () at /lib64/libc.so.6 3 annobin_assert.c_end () at /lib64/libc.so.6 4 bdrv_reopen_multiple (bs_queue=3D0x55de75fa9b70, errp=3D0x0) at ../block.c:3820 5 bdrv_reopen_set_read_only (bs=3D0x55de760fc020, read_only=3Dtrue, errp=3D0x0) at ../block.c:3870 6 stream_clean (job=3D0x55de75fa9410) at ../block/stream.c:99 7 job_clean (job=3D0x55de75fa9410) at ../job.c:680 8 job_finalize_single (job=3D0x55de75fa9410) at ../job.c:696 9 job_txn_apply (job=3D0x55de75fa9410, fn=3D0x55de741eee27 ) at ../job.c:158 10 job_do_finalize (job=3D0x55de75fa9410) at ../job.c:805 11 job_completed_txn_success (job=3D0x55de75fa9410) at ../job.c:855 12 job_completed (job=3D0x55de75fa9410) at ../job.c:868 13 job_exit (opaque=3D0x55de75fa9410) at ../job.c:888 14 aio_bh_call (bh=3D0x55de76b9b4e0) at ../util/async.c:136 15 aio_bh_poll (ctx=3D0x55de75bc5300) at ../util/async.c:164 16 aio_dispatch (ctx=3D0x55de75bc5300) at ../util/aio-posix.c:381 17 aio_ctx_dispatch (source=3D0x55de75bc5300, callback=3D0x0, user_data=3D0x0) at ../util/async.c:306 18 g_main_context_dispatch () at /lib64/libglib-2.0.so.0 19 glib_pollfds_poll () at ../util/main-loop.c:232 20 os_host_main_loop_wait (timeout=3D0) at ../util/main-loop.c:255 21 main_loop_wait (nonblocking=3D0) at ../util/main-loop.c:531 22 qemu_main_loop () at ../softmmu/runstate.c:722 23 main (argc=3D20, argv=3D0x7ffe218f0268, envp=3D0x7ffe218f0310) at ../softmmu/main.c:50 (gdb) fr 4 4 bdrv_reopen_multiple (bs_queue=3D0x55de75fa9b70, errp=3D0x0) at ../block.c:3820 3820 assert(perm =3D=3D state->perm); (gdb) list 3815 3816 if (ret =3D=3D 0) { 3817 uint64_t perm, shared; 3818 3819 bdrv_get_cumulative_perm(state->bs, &perm, &shared); 3820 assert(perm =3D=3D state->perm); 3821 assert(shared =3D=3D state->shared_perm); 3822 3823 bdrv_set_perm(state->bs); 3824 } else { (gdb) p perm $1 =3D 1 (gdb) p state->perm $2 =3D 0 Then I had 38 successful iterations and another crash: 0 bdrv_check_update_perm (bs=3D0x5631ac97bc50, q=3D0x0, new_used_perm=3D1, new_shared_perm=3D31, ignore_children=3D0x0, errp=3D0x7ffd9d477cf8) at ../block.c:2197 1 bdrv_root_attach_child (child_bs=3D0x5631ac97bc50, child_name=3D0x5631aaf6b1f9 "backing", child_class=3D0x5631ab280ca0 , child_role=3D8, ctx=3D0x5631ab757300, perm=3D1, shared_perm=3D31, opaque=3D0x5631abb8c0= 20, errp=3D0x7ffd9d477cf8) at ../block.c:2642 2 bdrv_attach_child (parent_bs=3D0x5631abb8c020, child_bs=3D0x5631ac97bc50, child_name=3D0x5631aaf6b1f9 "backing", child_class=3D0x5631ab280ca0 , child_role=3D8, errp=3D0x7ffd9d477cf8) at ../block.c:2719 3 bdrv_set_backing_hd (bs=3D0x5631abb8c020, backing_hd=3D0x5631ac97bc50, errp=3D0x7ffd9d477cf8) at ../block.c:2854 4 stream_prepare (job=3D0x5631ac751eb0) at ../block/stream.c:74 5 job_prepare (job=3D0x5631ac751eb0) at ../job.c:784 6 job_txn_apply (job=3D0x5631ac751eb0, fn=3D0x5631aacb1156 ) at ../job.c:158 7 job_do_finalize (job=3D0x5631ac751eb0) at ../job.c:801 8 job_completed_txn_success (job=3D0x5631ac751eb0) at ../job.c:855 9 job_completed (job=3D0x5631ac751eb0) at ../job.c:868 10 job_exit (opaque=3D0x5631ac751eb0) at ../job.c:888 11 aio_bh_call (bh=3D0x7f3d9c007680) at ../util/async.c:136 12 aio_bh_poll (ctx=3D0x5631ab757300) at ../util/async.c:164 13 aio_dispatch (ctx=3D0x5631ab757300) at ../util/aio-posix.c:381 14 aio_ctx_dispatch (source=3D0x5631ab757300, callback=3D0x0, user_data=3D0x0) at ../util/async.c:306 15 g_main_context_dispatch () at /lib64/libglib-2.0.so.0 16 glib_pollfds_poll () at ../util/main-loop.c:232 17 os_host_main_loop_wait (timeout=3D0) at ../util/main-loop.c:255 18 main_loop_wait (nonblocking=3D0) at ../util/main-loop.c:531 19 qemu_main_loop () at ../softmmu/runstate.c:722 20 main (argc=3D20, argv=3D0x7ffd9d478198, envp=3D0x7ffd9d478240) at ../softmmu/main.c:50 (gdb) list 2192 QLIST_FOREACH(c, &bs->parents, next_parent) { 2193 if (g_slist_find(ignore_children, c)) { 2194 continue; 2195 } 2196 2197 if ((new_used_perm & c->shared_perm) !=3D new_used_perm) { 2198 char *user =3D bdrv_child_user_desc(c); 2199 char *perm_names =3D bdrv_perm_names(new_used_perm & ~c->shared_perm); 2200 2201 error_setg(errp, "Conflicts with use by %s as '%s', which does not " (gdb) p c $1 =3D (BdrvChild *) 0x8585858585858585 and trying to reproduce it on top of "block: update graph permissions update" I had 634 successful iterations and then the following crash (which looks much better): 0 raise () at /lib64/libc.so.6 1 abort () at /lib64/libc.so.6 2 _nl_load_domain.cold () at /lib64/libc.so.6 3 annobin_assert.c_end () at /lib64/libc.so.6 4 bdrv_replace_child_noperm (child=3D0x5585bb632010, new_bs=3D0x5585bc4f42a0) at ../block.c:2589 5 bdrv_replace_child (child=3D0x5585bb632010, new_bs=3D0x5585bc4f42a0, tran=3D0x7fff5a14d8e0) at ../block.c:2211 6 bdrv_set_backing_noperm (bs=3D0x5585bb704020, backing_bs=3D0x5585bc4f42a0, tran=3D0x7fff5a14d8e0, errp=3D0x7fff5a14d91= 8) at ../block.c:3030 7 bdrv_set_backing_hd (bs=3D0x5585bb704020, backing_hd=3D0x5585bc4f42a0, errp=3D0x7fff5a14d918) at ../block.c:3072 8 stream_prepare (job=3D0x5585bc2ef230) at ../block/stream.c:74 9 job_prepare (job=3D0x5585bc2ef230) at ../job.c:784 10 job_txn_apply (job=3D0x5585bc2ef230, fn=3D0x5585ba638ad0 ) at ../job.c:158 11 job_do_finalize (job=3D0x5585bc2ef230) at ../job.c:801 12 job_completed_txn_success (job=3D0x5585bc2ef230) at ../job.c:855 13 job_completed (job=3D0x5585bc2ef230) at ../job.c:868 14 job_exit (opaque=3D0x5585bc2ef230) at ../job.c:888 15 aio_bh_call (bh=3D0x7f62b8004270) at ../util/async.c:136 16 aio_bh_poll (ctx=3D0x5585bb2ce4a0) at ../util/async.c:164 17 aio_dispatch (ctx=3D0x5585bb2ce4a0) at ../util/aio-posix.c:381 18 aio_ctx_dispatch (source=3D0x5585bb2ce4a0, callback=3D0x0, user_data=3D0x0) at ../util/async.c:306 19 g_main_context_dispatch () at /lib64/libglib-2.0.so.0 20 glib_pollfds_poll () at ../util/main-loop.c:232 21 os_host_main_loop_wait (timeout=3D0) at ../util/main-loop.c:255 22 main_loop_wait (nonblocking=3D0) at ../util/main-loop.c:531 23 qemu_main_loop () at ../softmmu/runstate.c:722 24 main (argc=3D20, argv=3D0x7fff5a14ddb8, envp=3D0x7fff5a14de60) at ../softmmu/main.c:50 (gdb) fr 4 4 bdrv_replace_child_noperm (child=3D0x5585bb632010, new_bs=3D0x5585bc4f42a0) at ../block.c:2589 2589 assert(bdrv_get_aio_context(old_bs) =3D=3D bdrv_get_aio_context(new_bs)); (gdb) list 2584 int drain_saldo; 2585 2586 assert(!child->frozen); 2587 2588 if (old_bs && new_bs) { 2589 assert(bdrv_get_aio_context(old_bs) =3D=3D bdrv_get_aio_context(new_bs)); 2590 } 2591 2592 new_bs_quiesce_counter =3D (new_bs ? new_bs->quiesce_counter : 0); 2593 drain_saldo =3D new_bs_quiesce_counter - child->parent_quiesce_counter; So it seems reasonable to drop test from auto group at least until we merge "block: update graph permissions update" Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Eric Blake --- Note: be free to shorten commit message if needed :) tests/qemu-iotests/030 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/qemu-iotests/030 b/tests/qemu-iotests/030 index 832fe4a1e2..12aa9ed37e 100755 --- a/tests/qemu-iotests/030 +++ b/tests/qemu-iotests/030 @@ -1,5 +1,5 @@ #!/usr/bin/env python3 -# group: rw auto backing +# group: rw backing # # Tests for image streaming. # --=20 2.29.2