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[libvirt] [PATCH] Ensure root filesystem is mounted if a file/block mount.
by Daniel P. Berrange 22 Mar '13

22 Mar '13

From: "Daniel P. Berrange" <berrange(a)redhat.com> For a root filesystem with type=file or type=block, the LXC container was forgetting to actually mount it, before doing the pivot root step. Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/lxc/lxc_container.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index be9bc6c..002dba1 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -105,6 +105,9 @@ struct __lxc_child_argv { int handshakefd; }; +static int lxcContainerMountFSBlock(virDomainFSDefPtr fs, + const char *srcprefix); + /* * reboot(LINUX_REBOOT_CMD_CAD_ON) will return -EINVAL @@ -406,6 +409,51 @@ static int lxcContainerChildMountSort(const void *a, const void *b) # define MS_SLAVE (1<<19) #endif +static int lxcContainerPrepareRoot(virDomainDefPtr def, + virDomainFSDefPtr root) +{ + char *dst; + char *tmp; + + if (root->type == VIR_DOMAIN_FS_TYPE_MOUNT) + return 0; + + if (root->type == VIR_DOMAIN_FS_TYPE_FILE) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Unexpected root filesystem without loop device")); + return -1; + } + + if (root->type != VIR_DOMAIN_FS_TYPE_BLOCK) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("Unsupported root filesystem type %s"), + virDomainFSTypeToString(root->type)); + return -1; + } + + if (virAsprintf(&dst, "%s/%s.root", + LXC_STATE_DIR, def->name) < 0) { + virReportOOMError(); + return -1; + } + + tmp = root->dst; + root->dst = dst; + + if (lxcContainerMountFSBlock(root, "") < 0) { + root->dst = tmp; + VIR_FREE(dst); + return -1; + } + + root->dst = tmp; + root->type = VIR_DOMAIN_FS_TYPE_MOUNT; + VIR_FREE(root->src); + root->src = dst; + + return 0; +} + static int lxcContainerPivotRoot(virDomainFSDefPtr root) { int ret; @@ -1926,6 +1974,10 @@ static int lxcContainerSetupPivotRoot(virDomainDefPtr vmDef, if (lxcContainerIdentifyCGroups(&mounts, &nmounts, &cgroupRoot) < 0) goto cleanup; + /* Ensure the root filesystem is mounted */ + if (lxcContainerPrepareRoot(vmDef, root) < 0) + goto cleanup; + /* Gives us a private root, leaving all parent OS mounts on /.oldroot */ if (lxcContainerPivotRoot(root) < 0) goto cleanup; -- 1.7.11.7

3 2

[libvirt] [PATCH] Mount temporary devpts on /var/lib/libvirt/lxc/$NAME.devpts
by Daniel P. Berrange 22 Mar '13

22 Mar '13

From: "Daniel P. Berrange" <berrange(a)redhat.com> Currently the lxc controller sets up the devpts instance on $rootfsdef->src, but this only works if $rootfsdef is using type=mount. To support type=block or type=file for the root filesystem, we must use /var/lib/libvirt/lxc/$NAME.devpts for the temporary devpts mount in the controller --- src/lxc/lxc_container.c | 43 +++++++++++++++++++++++++------------------ src/lxc/lxc_controller.c | 13 ++++--------- 2 files changed, 29 insertions(+), 27 deletions(-) diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index bf17a38..be9bc6c 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -627,15 +627,17 @@ static int lxcContainerMountProcFuse(virDomainDefPtr def ATTRIBUTE_UNUSED, } #endif -static int lxcContainerMountFSDevPTS(virDomainFSDefPtr root) +static int lxcContainerMountFSDevPTS(virDomainDefPtr def, + const char *srcprefix) { - char *devpts = NULL; - int rc = -1; + int ret; + char *path = NULL; - if (virAsprintf(&devpts, "/.oldroot%s/dev/pts", root->src) < 0) { - virReportOOMError(); - goto cleanup; - } + if ((ret = virAsprintf(&path, + "%s/%s/%s.devpts", + srcprefix ? srcprefix : "", LXC_STATE_DIR, + def->name)) < 0) + return ret; if (virFileMakePath("/dev/pts") < 0) { virReportSystemError(errno, "%s", @@ -643,19 +645,20 @@ static int lxcContainerMountFSDevPTS(virDomainFSDefPtr root) goto cleanup; } - VIR_DEBUG("Trying to move %s to %s", devpts, "/dev/pts"); - if ((rc = mount(devpts, "/dev/pts", NULL, MS_MOVE, NULL)) < 0) { - virReportSystemError(errno, "%s", - _("Failed to mount /dev/pts in container")); + VIR_DEBUG("Trying to move %s to /dev/pts", path); + + if ((ret = mount(path, "/dev/pts", + NULL, MS_MOVE, NULL)) < 0) { + virReportSystemError(errno, + _("Failed to mount %s on /dev/pts"), + path); goto cleanup; } - rc = 0; - - cleanup: - VIR_FREE(devpts); +cleanup: + VIR_FREE(path); - return rc; + return ret; } static int lxcContainerPopulateDevices(char **ttyPaths, size_t nttyPaths) @@ -1961,7 +1964,7 @@ static int lxcContainerSetupPivotRoot(virDomainDefPtr vmDef, goto cleanup; /* Mounts /dev/pts */ - if (lxcContainerMountFSDevPTS(root) < 0) + if (lxcContainerMountFSDevPTS(vmDef, "/.oldroot") < 0) goto cleanup; /* Populates device nodes in /dev/ */ @@ -2204,7 +2207,11 @@ static int lxcContainerChild(void *data) if (argv->nttyPaths) { if (root) { - if (virAsprintf(&ttyPath, "%s%s", root->src, argv->ttyPaths[0]) < 0) { + const char *tty = argv->ttyPaths[0]; + if (STRPREFIX(tty, "/dev/pts/")) + tty += strlen("/dev/pts/"); + if (virAsprintf(&ttyPath, "%s/%s.devpts/%s", + LXC_STATE_DIR, vmDef->name, tty) < 0) { virReportOOMError(); goto cleanup; } diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index bb369e2..1d1443c 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -1219,15 +1219,10 @@ virLXCControllerSetupDevPTS(virLXCControllerPtr ctrl) mount_options = virSecurityManagerGetMountOptions(ctrl->securityManager, ctrl->def); - if (!virFileExists(root->src)) { - virReportSystemError(errno, - _("root source %s does not exist"), - root->src); - goto cleanup; - } - - if (virAsprintf(&devpts, "%s/dev/pts", root->src) < 0 || - virAsprintf(&ctrl->devptmx, "%s/dev/pts/ptmx", root->src) < 0) { + if (virAsprintf(&devpts, "%s/%s.devpts", + LXC_STATE_DIR, ctrl->def->name) < 0 || + virAsprintf(&ctrl->devptmx, "%s/%s.devpts/ptmx", + LXC_STATE_DIR, ctrl->def->name) < 0) { virReportOOMError(); goto cleanup; } -- 1.7.11.7

3 2

[libvirt] [PATCH V2] Fix parsing of bond interface XML
by Jim Fehlig 22 Mar '13

22 Mar '13

Noticed that parsing bond interface XML containing the miimon element fails <interface type="bond" name="bond0"> ... <bond mode="active-backup"> <miimon freq="100" carrier="netif"/> ... </bond> </interface> This configuration does not contain the optional updelay and downdelay attributes, but parsing will fail due to returning the result of virXPathULong (a -1 when the attribute doesn't exist) from virInterfaceDefParseBond after examining the updelay attribute. While fixing this bug, cleanup the function to use virXPathInt instead of virXPathULong, and store the result directly instead of using a tmp variable. Using virXPathInt actually fixes a potential silent truncation bug noted by Eric Blake. Also, there is no cleaup in the error label. Remove the label, returning failure where failure occurs and success if the end of the function is reached. --- V2: Use virXPathInt instead of virXPathULong to avoid silent truncation, and store value directly in the def structure instead of using a tmp variable. src/conf/interface_conf.c | 63 ++++++++++++++++++++--------------------------- 1 file changed, 27 insertions(+), 36 deletions(-) diff --git a/src/conf/interface_conf.c b/src/conf/interface_conf.c index 9301ec0..7ca9c86 100644 --- a/src/conf/interface_conf.c +++ b/src/conf/interface_conf.c @@ -572,81 +572,72 @@ error: static int virInterfaceDefParseBond(virInterfaceDefPtr def, xmlXPathContextPtr ctxt) { - int ret = -1; - unsigned long tmp; + int res; def->data.bond.mode = virInterfaceDefParseBondMode(ctxt); if (def->data.bond.mode < 0) - goto error; + return -1; - ret = virInterfaceDefParseBondItfs(def, ctxt); - if (ret != 0) - goto error; + if (virInterfaceDefParseBondItfs(def, ctxt) != 0) + return -1; if (virXPathNode("./miimon[1]", ctxt) != NULL) { def->data.bond.monit = VIR_INTERFACE_BOND_MONIT_MII; - ret = virXPathULong("string(./miimon/@freq)", ctxt, &tmp); - if ((ret == -2) || (ret == -1)) { + res = virXPathInt("string(./miimon/@freq)", ctxt, + &def->data.bond.frequency); + if ((res == -2) || (res == -1)) { virReportError(VIR_ERR_XML_ERROR, "%s", _("bond interface miimon freq missing or invalid")); - goto error; + return -1; } - def->data.bond.frequency = (int) tmp; - ret = virXPathULong("string(./miimon/@downdelay)", ctxt, &tmp); - if (ret == -2) { + res = virXPathInt("string(./miimon/@downdelay)", ctxt, + &def->data.bond.downdelay); + if (res == -2) { virReportError(VIR_ERR_XML_ERROR, "%s", _("bond interface miimon downdelay invalid")); - goto error; - } else if (ret == 0) { - def->data.bond.downdelay = (int) tmp; + return -1; } - ret = virXPathULong("string(./miimon/@updelay)", ctxt, &tmp); - if (ret == -2) { + res = virXPathInt("string(./miimon/@updelay)", ctxt, + &def->data.bond.updelay); + if (res == -2) { virReportError(VIR_ERR_XML_ERROR, "%s", _("bond interface miimon updelay invalid")); - goto error; - } else if (ret == 0) { - def->data.bond.updelay = (int) tmp; + return -1; } def->data.bond.carrier = virInterfaceDefParseBondMiiCarrier(ctxt); - if (def->data.bond.carrier < 0) { - ret = -1; - goto error; - } + if (def->data.bond.carrier < 0) + return -1; } else if (virXPathNode("./arpmon[1]", ctxt) != NULL) { def->data.bond.monit = VIR_INTERFACE_BOND_MONIT_ARP; - ret = virXPathULong("string(./arpmon/@interval)", ctxt, &tmp); - if ((ret == -2) || (ret == -1)) { + res = virXPathInt("string(./arpmon/@interval)", ctxt, + &def->data.bond.interval); + if ((res == -2) || (res == -1)) { virReportError(VIR_ERR_XML_ERROR, "%s", _("bond interface arpmon interval missing or invalid")); - goto error; + return -1; } - def->data.bond.interval = (int) tmp; def->data.bond.target = virXPathString("string(./arpmon/@target)", ctxt); if (def->data.bond.target == NULL) { virReportError(VIR_ERR_XML_ERROR, "%s", _("bond interface arpmon target missing")); - ret = -1; - goto error; + return -1; } def->data.bond.validate = virInterfaceDefParseBondArpValid(ctxt); - if (def->data.bond.validate < 0) { - ret = -1; - goto error; - } + if (def->data.bond.validate < 0) + return -1; } -error: - return ret; + + return 0; } static int -- 1.8.0.1

2 3

[libvirt] Schedule for the next release suggestions
by Daniel Veillard 22 Mar '13

22 Mar '13

The 1.0.3 release was on the 5th March, and right now we have accumulated 'only' 150 commits since the release. Based on this I would suggest to wait a couple of weeks before to enter a freeze for the following release. This mean we drift from the usual end of month, but the ratio of freeze/devel will remain more or less constant as well as the expected size of change in the new release. So if this is fine I would suggest to enter freeze for 1.0.4 on the 5th of April for a release around the 12. Unless there is a reason to push a release earlier, Opinions ? Daniel -- Daniel Veillard | Open Source and Standards, Red Hat veillard(a)redhat.com | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | virtualization library http://libvirt.org/

3 7

[libvirt] Build failed in Jenkins: libvirt-syntax-check #759
by Jenkins CI 22 Mar '13

22 Mar '13

See <http://honk.sigxcpu.org:8001/job/libvirt-syntax-check/759/> ------------------------------------------ Started by upstream project "libvirt-build" build number 856 [workspace] $ /bin/sh -xe /tmp/hudson8330114436432330964.sh + make syntax-check GEN bracket-spacing-check GFDL_version 0.88 GFDL_version TAB_in_indentation 0.59 TAB_in_indentation Wundef_boolean 0.38 Wundef_boolean avoid_attribute_unused_in_header 0.40 avoid_attribute_unused_in_header avoid_ctype_macros 0.81 avoid_ctype_macros avoid_if_before_free 8.18 avoid_if_before_free avoid_strcase 0.91 avoid_strcase avoid_write 0.55 avoid_write bindtextdomain 0.46 bindtextdomain cast_of_argument_to_free 0.76 cast_of_argument_to_free cast_of_x_alloc_return_value 0.73 cast_of_x_alloc_return_value changelog 0.32 changelog const_long_option 0.52 const_long_option copyright_address 0.87 copyright_address copyright_check 1.06 copyright_check copyright_format 2.39 copyright_format correct_id_types 1.00 correct_id_types error_message_period 0.72 error_message_period error_message_warn_fatal 0.73 error_message_warn_fatal flags_debug 1.72 flags_debug flags_usage 1.68 flags_usage libvirt_unmarked_diagnostics 2.57 libvirt_unmarked_diagnostics m4_quote_check 0.38 m4_quote_check makefile_TAB_only_indentation 0.37 makefile_TAB_only_indentation makefile_at_at_check 0.31 makefile_at_at_check po_check 19.90 po_check preprocessor_indentation maint.mk: skipping test sc_preprocessor_indentation: cppi not installed 0.06 preprocessor_indentation prohibit_HAVE_MBRTOWC 0.86 prohibit_HAVE_MBRTOWC prohibit_PATH_MAX 0.87 prohibit_PATH_MAX prohibit_VIR_ERR_NO_MEMORY 0.83 prohibit_VIR_ERR_NO_MEMORY prohibit_access_xok 0.88 prohibit_access_xok prohibit_always-defined_macros 3.47 prohibit_always-defined_macros prohibit_always_true_header_tests 0.95 prohibit_always_true_header_tests prohibit_argmatch_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.58 prohibit_argmatch_without_use prohibit_asprintf 0.90 prohibit_asprintf prohibit_assert_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.61 prohibit_assert_without_use prohibit_backup_files 0.22 prohibit_backup_files prohibit_c_ctype_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.58 prohibit_c_ctype_without_use prohibit_canonicalize_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.57 prohibit_canonicalize_without_use prohibit_cloexec_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.57 prohibit_cloexec_without_use prohibit_close 1.70 prohibit_close prohibit_close_stream_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.70 prohibit_close_stream_without_use prohibit_cross_inclusion 9.89 prohibit_cross_inclusion prohibit_ctype_h 0.87 prohibit_ctype_h prohibit_cvs_keyword 0.89 prohibit_cvs_keyword prohibit_defined_have_decl_tests 0.87 prohibit_defined_have_decl_tests prohibit_diagnostic_without_format 1.95 prohibit_diagnostic_without_format prohibit_dirent_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.61 prohibit_dirent_without_use prohibit_doubled_word 8.83 prohibit_doubled_word prohibit_empty_lines_at_EOF 0.52 prohibit_empty_lines_at_EOF prohibit_error_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.58 prohibit_error_without_use prohibit_exit_in_tests 0.72 prohibit_exit_in_tests prohibit_fork_wrappers 0.99 prohibit_fork_wrappers prohibit_gethostby 0.86 prohibit_gethostby prohibit_gethostname 0.88 prohibit_gethostname prohibit_getopt_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.59 prohibit_getopt_without_use prohibit_gettext_markup 0.92 prohibit_gettext_markup prohibit_gettext_noop 0.86 prohibit_gettext_noop prohibit_hash_pjw_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.57 prohibit_hash_pjw_without_use prohibit_have_config_h 0.84 prohibit_have_config_h prohibit_ignore_value_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.57 prohibit_ignore_value_without_use prohibit_internal_functions 0.99 prohibit_internal_functions prohibit_intprops_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.58 prohibit_intprops_without_use prohibit_inttostr_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.56 prohibit_inttostr_without_use prohibit_long_options_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.54 prohibit_long_options_without_use prohibit_magic_number_exit 1.23 prohibit_magic_number_exit prohibit_mkstemp 0.85 prohibit_mkstemp prohibit_newline_at_end_of_diagnostic 0.95 prohibit_newline_at_end_of_diagnostic prohibit_nonreentrant 38.00 prohibit_nonreentrant prohibit_openat_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.57 prohibit_openat_without_use prohibit_path_max_allocation 0.85 prohibit_path_max_allocation prohibit_posixver_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.58 prohibit_posixver_without_use prohibit_raw_allocation 1.02 prohibit_raw_allocation prohibit_readlink 0.87 prohibit_readlink prohibit_return_as_function 0.89 prohibit_return_as_function prohibit_reversed_compare_failure 0.74 prohibit_reversed_compare_failure prohibit_risky_id_promotion 0.97 prohibit_risky_id_promotion prohibit_root_dev_ino_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.55 prohibit_root_dev_ino_without_use prohibit_safe_read_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.58 prohibit_safe_read_without_use prohibit_same_without_use grep: write error grep: write error sed: couldn't write 1 item to stdout: Broken pipe sed: couldn't write 49 items to stdout: Broken pipe 0.57 prohibit_same_without_use prohibit_semicolon_at_eol_in_python python/generator.py:1493: classes.write("=0"); maint.mk: Don't use semicolon at eol in python files make: *** [sc_prohibit_semicolon_at_eol_in_python] Error 1 Build step 'Execute shell' marked build as failure

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[libvirt] [PATCH] [TCK] nwfilter: probe for inverted ctdir
by Stefan Berger 22 Mar '13

22 Mar '13

Linux netfilter at some point inverted the meaning of the '--ctdir reply' and newer netfilter implementations now expect '--ctdir original' instead and vice-versa. We probe for this netfilter change via an IMCP message over loopback and 3 filtering rules applied to INPUT. If the sent byte arrives, the newer netfilter implementation has been detected and we convert the strings in the iptables output to now match that inversion implemented by libvirt. The downside of this is that probing of libvirt and this test tool are independent and this test tool will only work correctly for all cases if used with libvirt probing for 'ctdir inversion' as well. Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com> --- scripts/nwfilter/nwfilter2vmtest.sh | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) Index: libvirt-tck/scripts/nwfilter/nwfilter2vmtest.sh =================================================================== --- libvirt-tck.orig/scripts/nwfilter/nwfilter2vmtest.sh +++ libvirt-tck/scripts/nwfilter/nwfilter2vmtest.sh @@ -28,6 +28,10 @@ FLAG_LIBVIRT_TEST="$((1<<3))" FLAG_TAP_TEST="$((1<<4))" FLAG_FORCE_CLEAN="$((1<<5))" +# --ctdir original vs. --ctdir reply's meaning was inverted in +# netfilter at some point. We probe for it. +IPTABLES_CTRDIR_CORRECTED=0 + failctr=0 passctr=0 attachfailctr=0 @@ -100,6 +104,15 @@ mktmpdir() { return 0 } +probeIptablesCtdir() { + iptables -I INPUT 1 -i lo -p icmp -m state --state ESTABLISHED -j ACCEPT + iptables -I INPUT 2 -i lo -p icmp -m conntrack --ctdir ORIGINAL -j ACCEPT + iptables -I INPUT 3 -i lo -p icmp -j DROP + IPTABLES_CTDIR_CORRECTED=$(ping 127.0.0.1 -c 1 | sed -n 's/.*, $[0-9]*$ received,.*/\1/p') + iptables -D INPUT -i lo -p icmp -m state --state ESTABLISHED -j ACCEPT + iptables -D INPUT -i lo -p icmp -m conntrack --ctdir ORIGINAL -j ACCEPT + iptables -D INPUT -i lo -p icmp -j DROP +} checkExpectedOutput() { xmlfile="$1" @@ -160,6 +173,14 @@ checkExpectedOutput() { break fi + if [ $IPTABLES_CTDIR_CORRECTED -ne 0 ]; then + #change --ctdir ORIGINAL to --ctdir REPLY + #and --ctdir REPLY to --ctdir ORIGINAL + sed -i "s/ctdir[ ]*ORIGINAL/ctdir _REPLY/" ${tmpfile} + sed -i "s/ctdir[ ]*REPLY/ctdir ORIGINAL/" ${tmpfile} + sed -i "s/ctdir _REPLY/ctdir REPLY/" ${tmpfile} + fi + diff -w ${tmpfile} ${tmpfile2} >/dev/null if [ $? -ne 0 ]; then @@ -551,6 +572,8 @@ main() { echo "This script will only run on Linux." fi exit 1; + else + probeIptablesCtdir fi if [ $(($flags & $FLAG_TAP_TEST)) -ne 0 ]; then

1 0

[libvirt] [PATCH] Fix thread safety in LXC callback handling
by Daniel P. Berrange 22 Mar '13

22 Mar '13

From: "Daniel P. Berrange" <berrange(a)redhat.com> Some of the LXC callbacks did not lock the virDomainObjPtr instance. This caused transient errors like error: Failed to start domain busy-mount error: cannot rename file '/var/run/libvirt/lxc/busy-mount.xml.new' as '/var/run/libvirt/lxc/busy-mount.xml': No such file or directory as 2 threads tried to update the status file concurrently Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/lxc/lxc_process.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c index 670a032..39a6ea2 100644 --- a/src/lxc/lxc_process.c +++ b/src/lxc/lxc_process.c @@ -610,8 +610,13 @@ static void virLXCProcessMonitorExitNotify(virLXCMonitorPtr mon ATTRIBUTE_UNUSED virLXCMonitorExitStatus status, virDomainObjPtr vm) { + virLXCDriverPtr driver = lxc_driver; virLXCDomainObjPrivatePtr priv = vm->privateData; + lxcDriverLock(driver); + virObjectLock(vm); + lxcDriverUnlock(driver); + switch (status) { case VIR_LXC_MONITOR_EXIT_STATUS_SHUTDOWN: priv->stopReason = VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN; @@ -629,6 +634,8 @@ static void virLXCProcessMonitorExitNotify(virLXCMonitorPtr mon ATTRIBUTE_UNUSED } VIR_DEBUG("Domain shutoff reason %d (from status %d)", priv->stopReason, status); + + virObjectUnlock(vm); } static int @@ -667,9 +674,15 @@ static void virLXCProcessMonitorInitNotify(virLXCMonitorPtr mon ATTRIBUTE_UNUSED pid_t initpid, virDomainObjPtr vm) { - virLXCDomainObjPrivatePtr priv = vm->privateData; + virLXCDriverPtr driver = lxc_driver; + virLXCDomainObjPrivatePtr priv; ino_t inode; + lxcDriverLock(driver); + virObjectLock(vm); + lxcDriverUnlock(driver); + + priv = vm->privateData; priv->initpid = initpid; if (virLXCProcessGetNsInode(initpid, "pid", &inode) < 0) { @@ -684,6 +697,8 @@ static void virLXCProcessMonitorInitNotify(virLXCMonitorPtr mon ATTRIBUTE_UNUSED if (virDomainSaveStatus(lxc_driver->xmlconf, lxc_driver->stateDir, vm) < 0) VIR_WARN("Cannot update XML with PID for LXC %s", vm->def->name); + + virObjectUnlock(vm); } static virLXCMonitorCallbacks monitorCallbacks = { -- 1.7.11.7

2 1

[libvirt] [PATCH] Remove bogus filtering from virDomainGetRootFilesystem
by Daniel P. Berrange 22 Mar '13

22 Mar '13

From: "Daniel P. Berrange" <berrange(a)redhat.com> The virDomainGetRootFilesystem was only returning filesystems with type=mount. This is bogus - any type of filesystem is valid as the root, if dst=/. Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/conf/domain_conf.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 0ef67be..4cae0d3 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -15635,9 +15635,6 @@ virDomainGetRootFilesystem(virDomainDefPtr def) int i; for (i = 0 ; i < def->nfss ; i++) { - if (def->fss[i]->type != VIR_DOMAIN_FS_TYPE_MOUNT) - continue; - if (STREQ(def->fss[i]->dst, "/")) return def->fss[i]; } -- 1.7.11.7

2 1

[libvirt] [PATCH] virsh: don't print --(null) in vol-name and vol-pool
by Ján Tomko 22 Mar '13

22 Mar '13

Don't print the pool option name if it's null. Before: virsh # vol-name vol error: failed to get vol 'vol', specifying --(null) might help error: Storage volume not found: no storage vol with matching path vol After: virsh # vol-name vol error: failed to get vol 'vol' error: Storage volume not found: no storage vol with matching path vol Bug: https://bugzilla.redhat.com/show_bug.cgi?id=924571 --- tools/virsh-volume.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/virsh-volume.c b/tools/virsh-volume.c index 89ad8ea..0ca295f 100644 --- a/tools/virsh-volume.c +++ b/tools/virsh-volume.c @@ -88,7 +88,7 @@ vshCommandOptVolBy(vshControl *ctl, const vshCmd *cmd, } if (!vol) { - if (pool) + if (pool || !pooloptname) vshError(ctl, _("failed to get vol '%s'"), n); else vshError(ctl, _("failed to get vol '%s', specifying --%s " -- 1.8.1.5

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[libvirt] [PATCH] util: fix virAllocVar's comment
by Ján Tomko 22 Mar '13

22 Mar '13

--- Pushed under the trivial rule. src/util/viralloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/viralloc.c b/src/util/viralloc.c index 342b0eb..8f219bf 100644 --- a/src/util/viralloc.c +++ b/src/util/viralloc.c @@ -389,7 +389,7 @@ virDeleteElementsN(void *ptrptr, size_t size, size_t at, } /** - * Vir_Alloc_Var: + * virAllocVar: * @ptrptr: pointer to hold address of allocated memory * @struct_size: size of initial struct * @element_size: size of array elements -- 1.8.1.5

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