Semaphore set, and the list_proc by process. Sem_undo structure which has already been freed by freeary().Įach sem_undo struct is on two lists: one per semaphore set (list_id)Īnd one per process (list_proc). One of the child processes is looping infinitely in exit_sem betweenįor( ) and if (semid = -1) block, while it's trying to free its last Using the reproducer found in is fairly easy to reach a point where There isĪ reproducer available in and with the commit reverted the issue Looping infinitely in exit_sem() and can also lead to a crash. In exit_sem()") removes a lock that is needed. Revert "ipc, sem: remove uneeded sem_undo_list lock usage in exit_sem()" Sem: remove uneeded sem_undo_list lock usage in exit_sem()"Ĭontent-Type: text/plain charset="utf-8" X-Google-Smtp-Source: APXvYqymk+hZmSqNmk3ejelao9CliYfjZ7KAwq7VAhUF7DyTzAvDyxg8A+XX53AuIB2HrB10to/Zzg= TdsR/kjMaG4yQpBwhcFVI/7pgwyjvylzNFbf9LowG7Q= X-Gm-Message-State: APjAAAUVgnPLcxOYExgGKSvxil2A285yvxfnQR5ybfc9WGlyH8NSr3dFĦZ5T圜oqALlls圎l4tKXmfpKvxrvnkWLvFBEX6M09cTwv60doZwE3h6WvyFIHArxUWFXvzGIL/r HnbGLaYiZ40Xk2Aog3wzdbp0x元ZxdUdX2MU76foNU/EEG0lzgDB0WBcMHYCiFMVbuKA GtGYrNPTg8BYaGtF2x9GYLnxxp1s5NT2/6B8xF9BL2FlqKVlnm5TfY2Lt8bcdE0圓cHk Ym1OhDRLyyGYLc5+uHwPXvEiEOvAhlsfH0b+f2HnQv3kADaC3IydvOj28Wo/fUBFdEJF ![]() StwlJUJmX0QadUoU6qOM+Fno6w7WvbrkzIg64UXlva0jG/h16BmkSXeYoU7MJnquPSrI H=x-gm-message-state:from:to:subject:date:message-id īh=Az8641fPr5eUqUI5G+3hE1dQynGrGcjXhEMix/JHn7U= ī=GJXPWpjmhdOf9raCkD+OE8GEWgc0ogZGIvrSM0cUaWZIr++3RJDtgeZAp9fPIQizkk X-Google-DKIM-Signature: v=1 a=rsa-sha256 c=relaxed/relaxed Received: by with SMTP id z1so1989409wrs.9 Received: from localhost ( helo=)īy with esmtp (Exim 4.86_2) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256īy (Postfix) with ESMTPS id 48R3ln0mHCz9sRQ ![]() Smtp.mailfrom= dmarc=fail (p=none dis=none)
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