Bug 2011708
Summary: | Rebase to libnbd 1.10 before RHEL 9 GA | ||
---|---|---|---|
Product: | Red Hat Enterprise Linux 9 | Reporter: | Richard W.M. Jones <rjones> |
Component: | libnbd | Assignee: | Richard W.M. Jones <rjones> |
Status: | CLOSED ERRATA | QA Contact: | Vera <vwu> |
Severity: | high | Docs Contact: | |
Priority: | medium | ||
Version: | 9.0 | CC: | chhu, juzhou, kkiwi, lersek, mxie, rjones, tyan, tzheng, virt-maint, xiaodwan |
Target Milestone: | rc | Keywords: | Triaged |
Target Release: | --- | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | libnbd-1.10.5-1.el9 | Doc Type: | If docs needed, set a value |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2022-05-17 12:51:02 UTC | Type: | Bug |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Richard W.M. Jones
2021-10-07 07:33:50 UTC
Release notes for 1.10: https://libguestfs.org/libnbd-release-notes-1.10.1.html For bugs fixed along the stable-1.10 branch: https://gitlab.com/nbdkit/libnbd/-/commits/stable-1.10/ This contains some fixes for obscure memory leaks in the Python bindings, see: https://gitlab.com/nbdkit/libnbd/-/commits/stable-1.10/ Verified with the versions: libnbd-1.10.3-1.el9.x86_64 nbdkit-1.28.4-2.el9.x86_64 nbdfuse-1.10.3-1.el9.x86_64 python3-libnbd-1.10.3-1.el9.x86_64 Steps: Scenario1:nbdinfo 1.1 IPv6 numeric URIs are supported. # nbdinfo 'nbd://[2620:52:0:4254:2d8:61ff:fe3d:da54]:10809' protocol: newstyle-fixed without TLS export="": export-size: 10737418240 (10G) content: data uri: nbd://[2620:52:0:4254:2d8:61ff:fe3d:da54]:10809/ contexts: base:allocation is_rotational: false is_read_only: false can_cache: true can_df: true can_fast_zero: true can_flush: true can_fua: true can_multi_conn: true can_trim: true can_zero: true 1.2 <nbdinfo(1)> <--list> (which lists all exports of a server) no longer exists early if one of the exports is inaccessible or there is a recoverable error # nbdkit -U - file dir=/tmp/test --run 'nbdinfo --list "$uri"' protocol: newstyle-fixed without TLS export="1": export-size: 0 uri: nbd+unix:///1?socket=/tmp/nbdkitNujo64/socket contexts: base:allocation is_rotational: false is_read_only: false can_cache: true can_df: true can_fast_zero: false can_flush: true can_fua: true can_multi_conn: true can_trim: true can_zero: true export="好": export-size: 0 uri: nbd+unix:///%E5%A5%BD?socket=/tmp/nbdkitNujo64/socket contexts: base:allocation is_rotational: false is_read_only: false can_cache: true can_df: true can_fast_zero: false can_flush: true can_fua: true can_multi_conn: true can_trim: true can_zero: true 1.3 Use nbdinfo to display information and metadata about an NBD server. # nbdinfo nbd://localhost protocol: newstyle-fixed without TLS export="": export-size: 10737418240 (10G) content: data uri: nbd://localhost:10809/ contexts: base:allocation is_rotational: false is_read_only: false can_cache: true can_df: true can_fast_zero: true can_flush: true can_fua: true can_multi_conn: true can_trim: true can_zero: true # nbdinfo --json nbd://localhost | jq { "protocol": "newstyle-fixed", "TLS": false, "exports": [ { "export-name": "", "content": "data", "uri": "nbd://localhost:10809/", "contexts": [ "base:allocation" ], "is_rotational": false, "is_read_only": false, "can_cache": true, "can_df": true, "can_fast_zero": true, "can_flush": true, "can_fua": true, "can_multi_conn": true, "can_trim": true, "can_zero": true, "export-size": 10737418240, "export-size-str": "10G" } ] } Scenario2: nbdcopy 2.1 nbdcopy new <--request-size> option to allow controlling the size of requests made to NBD servers. Adjusting this can affect performance # nbdcopy --request-size=1048576 -p fedora-30.qcow2 nbd://localhost █ 100% [****************************************] # nbdinfo nbd://localhost protocol: newstyle-fixed without TLS export="": export-size: 10737418240 (10G) content: QEMU QCOW2 Image (v3), 6442450944 bytes uri: nbd://localhost:10809/ contexts: base:allocation is_rotational: false is_read_only: false can_cache: true can_df: true can_fast_zero: true can_flush: true can_fua: true can_multi_conn: true can_trim: true can_zero: true 2.2 nbdcopy new I<-v> flag to enable libnbd and other debugging. # nbdcopy -p nbd://localhost test.img -v |& tee > nbdcopy.log █ 100% [****************************************] # grep test nbdcopy.log nbdcopy: dst: file_ops "test.img" 2.3 Copy between a local file and an NBD server (in both directions) # nbdcopy --request-size=1048576 -p fedora-30.qcow2 nbd://localhost:10810 █ 100% [****************************************] # nbdcopy nbd://localhost:10810 verify.img -p █ 100% [****************************************] # ls -al |grep verify -rw-r--r--. 1 root root 10737418240 Jan 27 05:53 verify.img 2.4 Use nbdcopy to copy the file between multiple NBD servers # nbdinfo nbd://localhost:10811 protocol: newstyle-fixed without TLS export="": export-size: 10737418240 (10G) content: data uri: nbd://localhost:10811/ contexts: base:allocation is_rotational: false is_read_only: false can_cache: true can_df: true can_fast_zero: true can_flush: true can_fua: true can_multi_conn: true can_trim: true can_zero: true # nbdinfo nbd://localhost:10810 protocol: newstyle-fixed without TLS export="": export-size: 10737418240 (10G) content: QEMU QCOW2 Image (v3), 6442450944 bytes uri: nbd://localhost:10810/ contexts: base:allocation is_rotational: false is_read_only: false can_cache: true can_df: true can_fast_zero: true can_flush: true can_fua: true can_multi_conn: true can_trim: true can_zero: true # nbdcopy -p nbd://localhost:10810 nbd://localhost:10811 █ 100% [****************************************] # nbdinfo nbd://localhost:10811 protocol: newstyle-fixed without TLS export="": export-size: 10737418240 (10G) content: QEMU QCOW2 Image (v3), 6442450944 bytes uri: nbd://localhost:10811/ contexts: base:allocation is_rotational: false is_read_only: false can_cache: true can_df: true can_fast_zero: true can_flush: true can_fua: true can_multi_conn: true can_trim: true can_zero: true 2.5 nbdfuse now supports nbdcopy-style C<[ CMD ]>, eg: nbdfuse dir/ramdisk [ nbdkit memory 1G ] # nbdfuse /dir/ramdsk [ nbdkit memory 1G ] & [1] 120666 # ls -lh /dir total 0 -rw-rw-rw-. 1 root root 1.0G Jan 27 06:02 ramdsk Scenario3: nbdfuse 3.1 nbdfuse new I<-v> flag to enable libnbd and other debugging # nbdfuse nbdfuse-v/ramdisk --command nbdkit -s memory 2G -v |& tee > /nbdfuse-v.log # ls -lh /dir total 0 -rw-rw-rw-. 1 root root 1.0G Jan 27 06:02 ramdsk 3.2 Turn a qcow2 file into raw file # nbdfuse /var/tmp/mp/fedora-30.raw [ qemu-nbd -f qcow2 fedora-30.qcow2 ] & [1] 120803 # ll /var/tmp/mp total 0 -rw-rw-rw-. 1 root root 6442450944 Jan 27 06:06 fedora-30.raw Scenario4:nbdsh 4.1 Use nbdsh to test simple nbd API calls # nbdsh Welcome to nbdsh, the shell for interacting with Network Block Device (NBD) servers. The ‘nbd’ module has already been imported and there is an open NBD handle called ‘h’. h.connect_tcp("remote", "10809") # Connect to a remote server. h.get_size() # Get size of the remote disk. buf = h.pread(512, 0, 0) # Read the first sector. exit() or Ctrl-D # Quit the shell help(nbd) # Display documentation nbd> help(nbd) nbd> h.connect_command (["nbdkit", "-s", "memory", "size=2G"]) nbd> h.get_size() 2147483648 nbd> buf = b"hello" nbd> h.pwrite (buf, 0, 0) nbd> buf2 = h.pread (100, 0) nbd> print (buf2) b'hello\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' nbd> buf=nbd.Buffer.from_bytearray(bytearray(b"abc")) nbd> print(buf.is_zero(offset=0)) False nbd> buf=nbd.Buffer.from_bytearray(bytearray(b"\0a\02\0")) nbd> print(buf.is_zero(offset=4)) True nbd> print(buf.is_zero(offset=0)) False nbd> print(buf.is_zero(offset=1)) False nbd> buf=nbd.Buffer.from_bytearray(bytearray(b"")) nbd> print(buf.is_zero(offset=0)) True nbd> print(buf.is_zero(offset=1)) Traceback (most recent call last): File "<console>", line 1, in <module> File "/usr/lib64/python3.9/site-packages/nbd.py", line 157, in is_zero return libnbdmod.aio_buffer_is_zero(self._o, offset, size) IndexError: offset out of range nbd> Scenario 5: rebuilding src rpm Steps: 1. Download src package ; -rw-r--r--. 1 root root 1260697 Jan 17 12:02 libnbd-1.10.3-1.el9.src.rpm 2. Resolve the dependence problem before rebuilding,then build libnbd rpm packages from src package with non-root user; # rpmbuild --rebuild libnbd-1.10.3-1.el9.src.rpm Installing libnbd-1.10.3-1.el9.src.rpm warning: user mockbuild does not exist - using root warning: group mock does not exist - using root warning: user mockbuild does not exist - using root warning: group mock does not exist - using root warning: user mockbuild does not exist - using root warning: group mock does not exist - using root warning: user mockbuild does not exist - using root warning: group mock does not exist - using root warning: user mockbuild does not exist - using root warning: group mock does not exist - using root setting SOURCE_DATE_EPOCH=1642377600 Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.uC4G7j + umask 022 + cd /root/rpmbuild/BUILD + /usr/lib/rpm/redhat/gpgverify --keyring=/root/rpmbuild/SOURCES/libguestfs.keyring --signature=/root/rpmbuild/SOURCES/libnbd-1.10.3.tar.gz.sig --data=/root/rpmbuild/SOURCES/libnbd-1.10.3.tar.gz gpgv: Signature made Mon Jan 17 11:03:28 2022 EST gpgv: using RSA key F7774FB1AD074A7E8C8767EA91738F73E1B768A0 gpgv: issuer "rich" gpgv: Good signature from "Richard W.M. Jones <rjones>" gpgv: aka "Richard W.M. Jones <rich>" + cd /root/rpmbuild/BUILD + rm -rf libnbd-1.10.3 ........... .......... Executing(%clean): /bin/sh -e /var/tmp/rpm-tmp.JdqXH0 + umask 022 + cd /root/rpmbuild/BUILD + cd libnbd-1.10.3 + /usr/bin/rm -rf /root/rpmbuild/BUILDROOT/libnbd-1.10.3-1.el9.x86_64 + RPM_EC=0 ++ jobs -p + exit 0 Executing(--clean): /bin/sh -e /var/tmp/rpm-tmp.1dZZea + umask 022 + cd /root/rpmbuild/BUILD + rm -rf libnbd-1.10.3 + RPM_EC=0 ++ jobs -p + exit 0 3. check the rpms under the ~/RPMS/x86_64 and compare with the rpms on the brewweb. # ls -al total 1404 drwxr-xr-x. 2 root root 4096 Jan 27 21:17 . drwxr-xr-x. 4 root root 34 Jan 27 21:17 .. -rw-r--r--. 1 root root 136891 Jan 27 21:17 libnbd-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 303974 Jan 27 21:17 libnbd-debuginfo-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 125386 Jan 27 21:17 libnbd-debugsource-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 381379 Jan 27 21:17 libnbd-devel-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 32495 Jan 27 21:17 nbdfuse-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 37669 Jan 27 21:17 nbdfuse-debuginfo-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 58513 Jan 27 21:17 ocaml-libnbd-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 68236 Jan 27 21:17 ocaml-libnbd-debuginfo-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 95514 Jan 27 21:17 ocaml-libnbd-devel-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 75775 Jan 27 21:17 python3-libnbd-1.10.3-1.el9.x86_64.rpm -rw-r--r--. 1 root root 92370 Jan 27 21:17 python3-libnbd-debuginfo-1.10.3-1.el9.x86_64.rpm Moving to verified. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (new packages: libnbd), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2022:2409 |