Note: The Questing SRU was built against ceph/19.2.3-0ubuntu1 and should be released together.
I did the verification for Questing on a s390x porterbox, all looking good! First of all, the DEP-8 tests for qemu/s390x from questing-proposed are green again (specifically the "test-qemu-user.sh FAIL stderr: /bin/busybox: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record" issue): https://autopkgtest.ubuntu.com/results/autopkgtest-questing/questing/s390x/q/qemu/20251023_032142_0cef0@/log.gz Also, the minimal reproducer [Test Plan] works as expected: ``` ubuntu@slyon-qq:~$ sudo apt install -t questing-proposed qemu-user Upgrading: qemu-user qemu-user-binfmt Summary: Upgrading: 2, Installing: 0, Removing: 0, Not Upgrading: 15 Download size: 20.7 MB Space needed: 4096 B / 18.5 GB available Continue? [Y/n] Get:1 http://ports.ubuntu.com/ubuntu-ports questing-proposed/universe s390x qemu-user s390x 1:10.1.0+ds-5ubuntu2.1 [20.7 MB] Get:2 http://ports.ubuntu.com/ubuntu-ports questing-proposed/universe s390x qemu-user-binfmt s390x 1:10.1.0+ds-5ubuntu2.1 [1676 B] Fetched 20.7 MB in 0s (53.0 MB/s) (Reading database ... 71246 files and directories currently installed.) Preparing to unpack .../qemu-user_1%3a10.1.0+ds-5ubuntu2.1_s390x.deb ... Unpacking qemu-user (1:10.1.0+ds-5ubuntu2.1) over (1:10.1.0+ds-5ubuntu2) ... Preparing to unpack .../qemu-user-binfmt_1%3a10.1.0+ds-5ubuntu2.1_s390x.deb ... Unpacking qemu-user-binfmt (1:10.1.0+ds-5ubuntu2.1) over (1:10.1.0+ds-5ubuntu2) ... Setting up qemu-user (1:10.1.0+ds-5ubuntu2.1) ... Setting up qemu-user-binfmt (1:10.1.0+ds-5ubuntu2.1) ... [...] ubuntu@slyon-qq:~$ dpkg -l | grep libc6 ii libc6:s390x 2.42-0ubuntu3 s390x GNU C Library: Shared libraries ii libc6-dev:s390x 2.42-0ubuntu3 s390x GNU C Library: Development Libraries and Header Files ubuntu@slyon-qq:~$ dpkg -l | grep qemu-user ii qemu-user 1:10.1.0+ds-5ubuntu2.1 s390x QEMU user mode emulation (static binaries) ii qemu-user-binfmt 1:10.1.0+ds-5ubuntu2.1 s390x QEMU user mode binfmt registration for qemu-user ubuntu@slyon-qq:~$ dpkg --print-architecture s390x ubuntu@slyon-qq:~$ sudo dpkg --add-architecture riscv64 ubuntu@slyon-qq:~$ sudo apt update [...] ubuntu@slyon-qq:~$ sudo apt install hello:riscv64 Installing: hello:riscv64 Installing dependencies: gcc-15-base:riscv64 libc6:riscv64 libgcc-s1:riscv64 libidn2-0:riscv64 libunistring5:riscv64 Suggested packages: glibc-doc:riscv64 locales:riscv64 libnss-nis:riscv64 libnss-nisplus:riscv64 Summary: Upgrading: 0, Installing: 6, Removing: 0, Not Upgrading: 9 Download size: 3723 kB Space needed: 12.3 MB / 18.3 GB available Continue? [Y/n] [...] ubuntu@slyon-qq:~$ /usr/bin/qemu-riscv64 /usr/bin/hello Hello, world! ``` ** Tags removed: verification-needed verification-needed-questing ** Tags added: verification-done verification-done-questing -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/2123828 Title: [SRU] RISC-V: incorrect emulation of load and store on big-endian systems Status in QEMU: Fix Released Status in glibc package in Ubuntu: Invalid Status in qemu package in Ubuntu: Fix Released Status in gcc-15 source package in Noble: Invalid Status in glibc source package in Noble: Invalid Status in qemu source package in Noble: Won't Fix Status in gcc-15 source package in Plucky: Invalid Status in glibc source package in Plucky: Invalid Status in qemu source package in Plucky: Won't Fix Status in gcc-15 source package in Questing: Invalid Status in glibc source package in Questing: Invalid Status in qemu source package in Questing: Fix Committed Status in glibc source package in Resolute: Invalid Status in qemu source package in Resolute: Fix Released Bug description: [ Impact ] On s390x architecture, qemu cannot emulate riscv64 well because of an endianess error. Original bug report : QEMU's DEP-8 test fails on s390x, due to warning output on stderr about "unsupported version 256 of Verdef record", which is blocking migration of glibc 2.42-0ubuntu3. DEP-8 logs: """ 323s === Checking if /usr/bin/qemu-riscv64 can run executables: 323s glob with sh: /usr/bin/qemu-riscv64 /bin/busybox ash -c "/usr/bin/qemu-riscv64 /bin/busybox ls -dCFl debian/*[t]*": 323s /bin/busybox: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/riscv64-linux-gnu/libresolv.so.2: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record 323s 323s Reading package lists.../bin/busybox: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record 323s /bin/busybox: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record 323s Expected output not found [...] 328s autopkgtest [22:14:52]: @@@@@@@@@@@@@@@@@@@@ summary 328s test-qemu-img.sh PASS (superficial) 328s test-qemu-system.sh PASS (superficial) 328s test-qemu-user.sh FAIL stderr: /bin/busybox: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record """ Patched by flagging the faulty instructions with the endianness swap marker. [ Test Plan ] Minimal reproducer: (after booting up an s390x vm) ``` ubuntu@slyon-lp-2123828-slyon-glibc-qemu-riscv64:~$ sudo apt update && sudo apt install qemu-user ubuntu@slyon-lp-2123828-slyon-glibc-qemu-riscv64:~$ dpkg -l | grep libc6 ii libc6:s390x 2.42-0ubuntu3 ubuntu@slyon-lp-2123828-slyon-glibc-qemu-riscv64:~$ dpkg -l | grep qemu-user ii qemu-user 1:10.1.0+ds-5ubuntu1 ubuntu@slyon-lp-2123828-slyon-glibc-qemu-riscv64:~$ dpkg --print-architecture s390x ubuntu@slyon-lp-2123828-slyon-glibc-qemu-riscv64:~$ sudo dpkg --add-architecture riscv64 ubuntu@slyon-lp-2123828-slyon-glibc-qemu-riscv64:~$ sudo apt update ubuntu@slyon-lp-2123828-slyon-glibc-qemu-riscv64:~$ sudo apt install hello:riscv64 ubuntu@slyon-lp-2123828-slyon-glibc-qemu-riscv64:~$ /usr/bin/qemu-riscv64 /usr/bin/hello /usr/bin/hello: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record /usr/bin/hello: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record /usr/bin/hello: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record /usr/bin/hello: /lib/riscv64-linux-gnu/libc.so.6: unsupported version 256 of Verdef record /usr/bin/hello: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record /usr/bin/hello: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record /usr/bin/hello: /lib/ld-linux-riscv64-lp64d.so.1: unsupported version 256 of Verdef record ``` The same thing with the patch shows "Hello, world !". [ Where problems could occur ] This change is really small (3 lines), and only affects riscv64 emulation from QEMU. If the fix was entirely wrong, riscv64 emulation of compressed instruction could be affected. It can be easily tested. The patch was accepted upstream, so such tests are conducted upstream as well, which reduces the amount of possible problems and work to do to fix those. [ Other Info ] Patch applied upstream: https://gitlab.com/qemu-project/qemu/-/commit/b25133d38fe693589cf695b85968caa0724bfafd Patch available on ppa: https://launchpad.net/~vhaudiquet/+archive/ubuntu/qemu-fix-lp2123828/+packages To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/2123828/+subscriptions
