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a069e2f137
qemu/tests
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John Snow a069e2f137 blkdebug: fix "once" rule 
Background:
  The blkdebug scripts are currently engineered so that when a debug
event occurs, a prefilter browses a master list of parsed rules for a
certain event and adds them to an "active list" of rules to be used for
the forthcoming action, provided the events and state numbers match.

  Then, once the request is received, the last active rule is used to
inject an error if certain parameters match.

  This active list is cleared every time the prefilter injects a new
rule for the first time during a debug event.

  The "once" rule currently causes the error injection, if it is
triggered, to only clear the active list. This is insufficient for
preventing future injections of the same rule.

Remedy:
  This patch /deletes/ the rule from the list that the prefilter
browses, so it is gone for good. In V2, we remove only the rule of
interest from the active list instead of allowing the "once" rule to
clear the entire list of active rules.

Impact:
  This affects iotests 026. Several ENOSPC tests that used "once" can
be seen to have output that shows multiple failure messages. After
this patch, the error messages tend to be smaller and less severe, but
the injection can still be seen to be working. I have patched the
expected output to expect the smaller error messages.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1423257977-25630-1-git-send-email-jsnow@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10 14:02:21 +01:00
..
acpi-test-data acpi-test: update expected DSDT 2015-01-27 14:45:10 +02:00
image-fuzzer block: delete cow block driver 2014-09-22 11:39:45 +01:00
libqos libqos: Add virtio MMIO support 2015-03-10 14:02:20 +01:00
multiboot tests/multiboot: Add test for modules 2015-01-26 12:22:44 +01:00
qapi-schema tests: add QMP input visitor test for unions with no discriminator 2014-09-26 13:14:11 -04:00
qemu-iotests blkdebug: fix "once" rule 2015-03-10 14:02:21 +01:00
tcg target-xtensa: test cross-page opcode 2014-12-17 05:49:32 +03:00
vmstate-static-checker-data tests: vmstate static checker: add size mismatch inside substructure 2014-06-23 19:14:52 +02:00
.gitignore qapi: Ignore files created during make check 2014-09-26 21:18:15 +04:00
ac97-test.c tests: Add ac97 qtest 2014-05-05 20:58:33 +02:00
ahci-test.c qtest/ahci: Adding simple dma read-write test 2015-02-16 15:07:17 +00:00
bios-tables-test.c bios-tables-test: split piix4 and q35 tests 2015-01-27 14:46:17 +02:00
boot-order-test.c qtest: Use -display none by default 2013-11-19 10:28:14 +01:00
check-block.sh
check-qdict.c check-qdict: Add test for qdict_join() 2014-05-19 11:36:48 +02:00
check-qfloat.c
check-qint.c
check-qjson.c json-lexer: fix escaped backslash in single-quoted string 2014-06-23 11:01:24 -04:00
check-qlist.c
check-qom-interface.c tests: Test QOM interface casting 2013-12-24 17:27:17 +01:00
check-qstring.c
display-vga-test.c add secondary-vga to display-vga test 2014-04-28 11:03:39 +02:00
drive_del-test.c qtests: Specify image format explicitly 2014-12-10 10:31:12 +01:00
e1000-test.c e1000: remove broken support for 82573L 2014-06-09 15:38:58 +02:00
eepro100-test.c tests: Add eepro100 qtest 2014-02-14 16:22:33 +01:00
endianness-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
es1370-test.c tests: Add es1370 qtest 2014-05-05 20:58:33 +02:00
fdc-test.c qtests: Specify image format explicitly 2014-12-10 10:31:12 +01:00
fw_cfg-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
hd-geo-test.c tests/hd-geo-test.c: Remove unused test_image variable 2015-01-15 10:44:13 +03:00
i440fx-test.c qtests: Specify image format explicitly 2014-12-10 10:31:12 +01:00
i82801b11-test.c tests: Add i82801b11 qtest 2014-03-31 22:36:17 +02:00
ide-test.c qtests: Specify image format explicitly 2014-12-10 10:31:12 +01:00
intel-hda-test.c tests: Add intel-hda qtests 2014-05-05 20:58:33 +02:00
ioh3420-test.c tests: Add ioh3420 qtest 2014-05-05 20:58:33 +02:00
ipoctal232-test.c tests: Add ipoctal232 qtest 2014-02-14 21:07:13 +01:00
libqtest.c tests: Add virtio device initialization 2014-09-08 11:12:43 +01:00
libqtest.h glib: add compatibility interface for g_get_monotonic_time() 2014-10-15 13:43:35 +01:00
m48t59-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
Makefile libqos: Add virtio MMIO support 2015-03-10 14:02:20 +01:00
ne2000-test.c tests: Add ne2000 qtest 2014-02-14 20:50:19 +01:00
nvme-test.c qtests: Specify image format explicitly 2014-12-10 10:31:12 +01:00
pcnet-test.c tests: Add pcnet qtest 2014-02-14 16:22:33 +01:00
pvpanic-test.c pvpanic-test: Assert pause event 2014-03-31 22:36:17 +02:00
qemu-iotests-quick.sh qemu-iotests: Speed up make check-block 2015-01-13 11:47:55 +00:00
qom-test.c libqtest: escape strings in QMP commands, fix leak 2014-07-01 10:20:41 +02:00
rcutorture.c rcu: allow nesting of rcu_read_lock/rcu_read_unlock 2015-02-02 16:55:10 +01:00
rtc-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
rtl8139-test.c tests: Add rtl8139 qtest 2014-02-14 16:22:33 +01:00
spapr-phb-test.c tests: Add spapr-pci-host-bridge qtest 2014-03-13 01:21:57 +01:00
test-aio.c async: aio_context_new(): Handle event_notifier_init failure 2014-09-22 11:39:48 +01:00
test-bitops.c tests: Add missing include to test-bitops.c 2014-11-02 10:04:34 +03:00
test-coroutine.c test-coroutine: Regression test for yield bug 2015-03-09 11:11:59 +01:00
test-cutils.c cutils: unsigned int parsing functions 2013-02-04 14:38:33 -06:00
test-hbitmap.c
test-int128.c tests/test-int128: Don't use __noclone__ attribute on clang 2014-03-02 17:20:37 +04:00
test-iov.c
test-mul64.c tests: Add unit tests for mulu64 and muls64 2013-02-17 14:28:58 +00:00
test-opts-visitor.c tests: fix 64-bit int literals for 32-bit hosts 2013-11-05 19:59:43 -08:00
test-qdev-global-props.c qdev: Move global validation to a single function 2014-09-18 21:51:24 +03:00
test-qemu-opts.c QemuOpts: Drop qemu_opt_set(), rename qemu_opt_set_err(), fix use 2015-02-26 14:49:31 +01:00
test-qmp-commands.c tests: test-qmp-commands: Fix double free 2014-03-11 09:07:42 -04:00
test-qmp-event.c tests/test-qmp-event: fix for GLib < 2.31 2014-06-30 15:06:11 +02:00
test-qmp-input-strict.c tests: add QMP input visitor test for unions with no discriminator 2014-09-26 13:14:11 -04:00
test-qmp-input-visitor.c qapi: Replace uncommon use of the error API by the common one 2014-05-15 14:00:46 -04:00
test-qmp-output-visitor.c tests: Check empty QMP output visitor 2014-05-28 17:36:09 +02:00
test-rcu-list.c rcu: introduce RCU-enabled QLIST 2015-02-16 17:30:19 +01:00
test-rfifolock.c rfifolock: add recursive FIFO lock 2014-03-13 14:42:21 +01:00
test-string-input-visitor.c tests: simplify code 2014-06-19 18:44:22 +03:00
test-string-output-visitor.c tests: Fix unterminated string output visitor enum human string 2014-07-14 12:03:20 +02:00
test-thread-pool.c block: Rename BlockDriverAIOCB* to BlockAIOCB* 2014-10-20 13:41:27 +02:00
test-throttle.c async: aio_context_new(): Handle event_notifier_init failure 2014-09-22 11:39:48 +01:00
test-visitor-serialization.c tests: Add missing 'static' attributes (fix warnings from smatch) 2014-07-18 17:45:37 +04:00
test-vmstate.c migration: Append JSON description of migration stream 2015-02-05 17:16:14 +01:00
test-write-threshold.c block: add event when disk usage exceeds threshold 2015-02-06 17:24:21 +01:00
test-x86-cpuid.c target-i386: Topology & APIC ID utility functions 2013-01-27 14:34:27 +01:00
test-xbzrle.c Add XBZRLE testing 2013-02-01 08:32:20 +01:00
tmp105-test.c libqtest: escape strings in QMP commands, fix leak 2014-07-01 10:20:41 +02:00
tpci200-test.c tests: Add tpci200 qtest 2014-02-14 21:02:27 +01:00
usb-hcd-ehci-test.c tests: usb: Generic usb device hotplug 2014-10-15 05:03:13 +02:00
usb-hcd-ohci-test.c tests: usb: Generic usb device hotplug 2014-10-15 05:03:13 +02:00
usb-hcd-uhci-test.c qtests: Specify image format explicitly 2014-12-10 10:31:12 +01:00
usb-hcd-xhci-test.c qtests: Specify image format explicitly 2014-12-10 10:31:12 +01:00
vhost-user-test.c vhost-user-test: Fix 'make check' broken on glib < 2.26 2014-11-05 12:53:08 +00:00
virtio-9p-test.c tests: Add virtio-9p qtest 2014-03-31 22:35:50 +02:00
virtio-balloon-test.c tests: Add virtio-balloon qtest 2014-03-13 01:21:56 +01:00
virtio-blk-test.c libqos: Add virtio MMIO support 2015-03-10 14:02:20 +01:00
virtio-console-test.c virtio-console-test: Test virtserialport as well 2014-03-13 21:12:07 +01:00
virtio-net-test.c tests: virtio-net: Check if hot-plug/unplug works 2014-10-15 05:03:12 +02:00
virtio-rng-test.c tests: virtio-rng: Check if hot-plug/unplug works 2014-10-15 05:03:12 +02:00
virtio-scsi-test.c qtests: Specify image format explicitly 2014-12-10 10:31:12 +01:00
virtio-serial-test.c tests: virtio-serial: Check if hot-plug/unplug works 2014-10-15 05:03:12 +02:00
vmxnet3-test.c tests: Add vmxnet3 qtest 2014-02-14 16:22:33 +01:00
wdt_ib700-test.c qtest: new test for wdt_ib700 2014-07-18 14:57:35 +02:00