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From: Thomas Huth <1926759@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Bug 1926759] Re: WFI instruction results in unhandled CPU exception
Date: Sun, 16 May 2021 14:29:29 -0000	[thread overview]
Message-ID: <162117536946.21294.3611695309741452085.malone@soybean.canonical.com> (raw)
In-Reply-To: 161978229375.10342.16262082750544447119.malonedeb@gac.canonical.com

Fix has been merged:
https://gitlab.com/qemu-project/qemu/-/commit/5b2c8af89b82a671137a

** Changed in: qemu
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1926759

Title:
  WFI instruction results in unhandled CPU exception

Status in QEMU:
  Fix Committed

Bug description:
  Hi

  I refer to the WFI instruction. The bytecode is 0xe320f003. After the
  execution, qemu exit with the following  crash log.

  qemu: unhandled CPU exception 0x10001 - aborting
  R00=00000001 R01=40800b34 R02=40800b3c R03=000102ec
  R04=00010a28 R05=00010158 R06=00087460 R07=00010158
  R08=00000000 R09=00000000 R10=00085b7c R11=408009f4
  R12=40800a08 R13=408009f0 R14=0001057c R15=000102f8
  PSR=60000010 -ZC- A usr32
  qemu:handle_cpu_signal received signal outside vCPU context @ pc=0x7f5c21d0fa12

  WFI aims to enter a low-power state and wait for interrupt. The raised
  exception seems not a right behavior. I can provide a testcase if you
  needed. Many thanks.

  Regards
  Muhui

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  parent reply	other threads:[~2021-05-16 14:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-30 11:31 [Bug 1926759] [NEW] WFI instruction results in unhandled CPU exception JIANG Muhui
2021-04-30 13:06 ` [Bug 1926759] " Peter Maydell
2021-04-30 13:07 ` Peter Maydell
2021-04-30 13:17 ` JIANG Muhui
2021-04-30 13:40 ` Peter Maydell
2021-04-30 13:52 ` Peter Maydell
2021-04-30 14:54 ` JIANG Muhui
2021-04-30 15:09 ` Peter Maydell
2021-04-30 17:51 ` Peter Maydell
2021-05-16 14:29 ` Thomas Huth [this message]
2021-08-25  7:06 ` Thomas Huth

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