Re: rainier-bmc machine dumping core with latest qemu

[Emanuele Giuseppe Esposito]

Adding Kevin too.

I can't reproduce your issue. I tried the exact steps showed in your
mail, both with BLD_VERSION=20230205025034 (not anymore latest compose)
and BLD_VERSION=20230209025037 (currently latest), and the VM boots till
the login screen.

Talking with Kevin it looks like handle_aiocb_write_zeroes() should not
use bdrv_getlength() but rather raw_co_getlength().
Could you try replacing it in block/file-posix.c line 1741 and rebuild
and see if it works?

Thank you,
Emanuele

Am 08/02/2023 um 15:56 schrieb Philippe Mathieu-Daudé:
> Cc'ing Emanuele.
> 
> On 8/2/23 15:26, Ninad Palsule wrote:
>> Hello,
>>
>> I am hitting core dump while running qemu with rainier-bmc machine. I
>> started
>> hitting it after I rebased to latest qemu from master.
>> Can someone please help?
>>
>> /home/abc/dev/qemu/build/qemu-system-arm -M rainier-bmc -nographic \
>>    -kernel
>> ./fitImage-linux.bin--${LINUX_VERSION}-r0-p10bmc-${BLD_VERSION}.bin \
>>    -dtb
>> ./aspeed-bmc-ibm-rainier--${LINUX_VERSION}-r0-p10bmc-${BLD_VERSION}.dtb \
>>    -initrd
>> ./obmc-phosphor-initramfs-p10bmc-${BLD_VERSION}.rootfs.cpio.xz \
>>    -drive
>> file=./obmc-phosphor-image-p10bmc-${BLD_VERSION}.rootfs.wic.qcow2,if=sd,index=2
>>  \
>>    -append 'rootwait console=ttyS4,115200n8 root=PARTLABEL=rofs-a'
>>
>>
>>
>> [  OK  ] Started Journal Service.
>>           Starting Flush Journal to Persistent Storage...
>> [   45.873184] systemd-journald[156]: Received client request to flush
>> runtime journal.
>> [   45.932231] systemd-journald[156]: File
>> /var/log/journal/97cd620eaa284caf980533438c7355c4/system.journal
>> corrupted or uncleanly shut down, renaming and replacing.
>> qemu-system-arm: /home/abc/dev/qemu/block/block-gen.h:43:
>> bdrv_poll_co: Assertion `qemu_get_current_aio_context() ==
>> qemu_get_aio_context()' failed.
>>
>> Thread 3 "qemu-system-arm" received signal SIGABRT, Aborted.
>> [Switching to Thread 0x7ffff6896640 (LWP 3898452)]
>> __pthread_kill_implementation (no_tid=0, signo=6,
>> threadid=140737329587776) at ./nptl/pthread_kill.c:44
>> 44  ./nptl/pthread_kill.c: No such file or directory.
>>
>>
>> #6  0x00007ffff77e8e96 in __GI___assert_fail
>>      (assertion=assertion@entry=0x55555603e798
>> "qemu_get_current_aio_context() ==
>> qemu_get_aio_context()", file=file@entry=0x5555560aef28
>> "/home/abc/dev/qemu/block/block-gen.h", line=line@entry=43,
>> function=function@entry=0x5555560af080 <__PRETTY_FUNCTION__.9>
>> "bdrv_poll_co") at ./assert/assert.c:101
>> #7  0x0000555555da91f9 in bdrv_poll_co (s=0x7ffff68957f0) at
>> /home/abc/dev/qemu/block/block-gen.h:43
>> #8  bdrv_poll_co (s=0x7ffff68957f0) at
>> /home/abc/dev/qemu/block/block-gen.h:38
>> #9  bdrv_getlength (bs=<optimized out>) at block/block-gen.c:310
>> #10 0x0000555555e3558e in handle_aiocb_write_zeroes
>> (opaque=0x7fff419965f0) at ../block/file-posix.c:1741
>> #11 0x0000555555ef80fd in worker_thread
>> (opaque=opaque@entry=0x5555569e2300) at ../util/thread-pool.c:110
>> #12 0x0000555555ee3901 in qemu_thread_start (args=<optimized out>) at
>> ../util/qemu-thread-posix.c:505
>> #13 0x00007ffff7843b43 in start_thread (arg=<optimized out>) at
>> ./nptl/pthread_create.c:442
>> #14 0x00007ffff78d5a00 in clone3 () at
>> ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
>>
>> (gdb) p qemu_aio_context
>> $1 = (AioContext *) 0x5555568b13d0
>>
>> ---------------------------------------
>>
>>
>> Reproduction steps:
>>
>> 1. Clone and build qemu from https://github.com/qemu/qemu
>> 2. Download following eBMC images
>>
>> BLD_VERSION=20230205025034
>> LINUX_VERSION="6.0.19+git0+67c9407e1f"
>> wget
>> https://jenkins.openbmc.org/view/latest/job/latest-master/label=docker-builder,target=p10bmc/lastStableBuild/artifact/openbmc/build/tmp/deploy/images/p10bmc/obmc-phosphor-initramfs-p10bmc-${BLD_VERSION}.rootfs.cpio.xz
>>
>> wget
>> https://jenkins.openbmc.org/view/latest/job/latest-master/label=docker-builder,target=p10bmc/lastStableBuild/artifact/openbmc/build/tmp/deploy/images/p10bmc/aspeed-bmc-ibm-rainier--${LINUX_VERSION}-r0-p10bmc-${BLD_VERSION}.dtb
>>
>> wget
>> https://jenkins.openbmc.org/view/latest/job/latest-master/label=docker-builder,target=p10bmc/lastStableBuild/artifact/openbmc/build/tmp/deploy/images/p10bmc/fitImage-linux.bin--${LINUX_VERSION}-r0-p10bmc-${BLD_VERSION}.bin
>>
>> wget
>> https://jenkins.openbmc.org/view/latest/job/latest-master/label=docker-builder,target=p10bmc/lastStableBuild/artifact/openbmc/build/tmp/deploy/images/p10bmc/obmc-phosphor-image-p10bmc-${BLD_VERSION}.rootfs.wic.qcow2
>> qemu-img resize
>> obmc-phosphor-image-p10bmc-${BLD_VERSION}.rootfs.wic.qcow2 16G
>>
>> 3. Run the qemu command as show at the start
>>
>>
>>
>