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From: Richard Weinberger <richard@nod.at>
To: linux-um@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, johannes.berg@intel.com,
	anton.ivanov@cambridgegreys.com,
	Richard Weinberger <richard@nod.at>
Subject: [PATCH 0/4] um: Assorted console related fixes
Date: Sat,  1 Jan 2022 22:58:06 +0100	[thread overview]
Message-ID: <20220101215810.13260-1-richard@nod.at> (raw)

When UML terminates (gracefully or panic) it does not always
cleanup on the host side.
Especially when fd:0,fd:1 is used as console it can leave a misconfigured
stdin/out on the host side.
Also stale processes such as port-helper can left behind.

This series fixes the console exit code to make sure UML
undoes everything it changed on the host side.

Richard Weinberger (4):
  um: Run console exit code also upon kernel panic
  um: os_set_fd_block: Return old blocking mode
  um: chan: Restore blocking mode upon exit
  um: irq: Restore O_ASYNC upon exit

 arch/um/drivers/chan.h               |  1 +
 arch/um/drivers/chan_kern.c          | 11 +++++++----
 arch/um/drivers/chan_user.c          |  2 +-
 arch/um/drivers/mconsole_kern.c      |  2 +-
 arch/um/drivers/stdio_console.c      |  4 ++--
 arch/um/drivers/ubd_user.c           |  2 +-
 arch/um/drivers/xterm.c              |  2 +-
 arch/um/include/shared/uml_console.h | 11 +++++++++++
 arch/um/kernel/irq.c                 |  5 ++++-
 arch/um/kernel/um_arch.c             |  8 +++++---
 arch/um/os-Linux/file.c              |  5 ++++-
 11 files changed, 38 insertions(+), 15 deletions(-)
 create mode 100644 arch/um/include/shared/uml_console.h

-- 
2.26.2


WARNING: multiple messages have this Message-ID (diff)
From: Richard Weinberger <richard@nod.at>
To: linux-um@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, johannes.berg@intel.com,
	anton.ivanov@cambridgegreys.com,
	Richard Weinberger <richard@nod.at>
Subject: [PATCH 0/4] um: Assorted console related fixes
Date: Sat,  1 Jan 2022 22:58:06 +0100	[thread overview]
Message-ID: <20220101215810.13260-1-richard@nod.at> (raw)

When UML terminates (gracefully or panic) it does not always
cleanup on the host side.
Especially when fd:0,fd:1 is used as console it can leave a misconfigured
stdin/out on the host side.
Also stale processes such as port-helper can left behind.

This series fixes the console exit code to make sure UML
undoes everything it changed on the host side.

Richard Weinberger (4):
  um: Run console exit code also upon kernel panic
  um: os_set_fd_block: Return old blocking mode
  um: chan: Restore blocking mode upon exit
  um: irq: Restore O_ASYNC upon exit

 arch/um/drivers/chan.h               |  1 +
 arch/um/drivers/chan_kern.c          | 11 +++++++----
 arch/um/drivers/chan_user.c          |  2 +-
 arch/um/drivers/mconsole_kern.c      |  2 +-
 arch/um/drivers/stdio_console.c      |  4 ++--
 arch/um/drivers/ubd_user.c           |  2 +-
 arch/um/drivers/xterm.c              |  2 +-
 arch/um/include/shared/uml_console.h | 11 +++++++++++
 arch/um/kernel/irq.c                 |  5 ++++-
 arch/um/kernel/um_arch.c             |  8 +++++---
 arch/um/os-Linux/file.c              |  5 ++++-
 11 files changed, 38 insertions(+), 15 deletions(-)
 create mode 100644 arch/um/include/shared/uml_console.h

-- 
2.26.2


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             reply	other threads:[~2022-01-01 21:58 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-01 21:58 Richard Weinberger [this message]
2022-01-01 21:58 ` [PATCH 0/4] um: Assorted console related fixes Richard Weinberger
2022-01-01 21:58 ` [PATCH 1/4] um: Run console exit code also upon kernel panic Richard Weinberger
2022-01-01 21:58   ` Richard Weinberger
2022-01-04  5:58   ` kernel test robot
2022-01-04  8:56   ` Johannes Berg
2022-01-04  8:56     ` Johannes Berg
2022-01-01 21:58 ` [PATCH 2/4] um: os_set_fd_block: Return old blocking mode Richard Weinberger
2022-01-01 21:58   ` Richard Weinberger
2022-01-04  9:00   ` Johannes Berg
2022-01-04  9:00     ` Johannes Berg
2022-01-01 21:58 ` [PATCH 3/4] um: chan: Restore blocking mode upon exit Richard Weinberger
2022-01-01 21:58   ` Richard Weinberger
2022-01-01 21:58 ` [PATCH 4/4] um: irq: Restore O_ASYNC " Richard Weinberger
2022-01-01 21:58   ` Richard Weinberger
2022-01-04  9:02   ` Johannes Berg
2022-01-04  9:02     ` Johannes Berg
2022-03-09  5:29 ` [PATCH 0/4] um: Assorted console related fixes Glenn Washburn
2022-03-09  8:35   ` Richard Weinberger
2022-03-09 16:13     ` Randy Dunlap
2022-03-09 16:21       ` Richard Weinberger
2022-03-09 16:48         ` Randy Dunlap
2022-03-10 18:21     ` Glenn Washburn
2022-04-04 21:41       ` Richard Weinberger
2022-06-06 23:16         ` Glenn Washburn
2022-06-07  8:22           ` Johannes Berg
2022-06-07 15:10             ` Glenn Washburn

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