diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2017-05-11 18:21:01 -0500 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-06-07 22:50:41 -0400 |
| commit | 0e521eabd7a3e1c5efb57f1dd8e3721e319a9bc1 (patch) | |
| tree | beb5f7056bcec7f0d09eb5e9a87179546ad9371a /include/linux/poison.h | |
| parent | 57cd95a5dcbcff6c5d389e91b3d674f9ace903e5 (diff) | |
pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes
[ Upstream commit b9a985db98961ae1ba0be169f19df1c567e4ffe0 ]
The code can potentially sleep for an indefinite amount of time in
zap_pid_ns_processes triggering the hung task timeout, and increasing
the system average. This is undesirable. Sleep with a task state of
TASK_INTERRUPTIBLE instead of TASK_UNINTERRUPTIBLE to remove these
undesirable side effects.
Apparently under heavy load this has been allowing Chrome to trigger
the hung time task timeout error and cause ChromeOS to reboot.
Reported-by: Vovo Yang <vovoy@google.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 6347e9009104 ("pidns: guarantee that the pidns init will be the last pidns process reaped")
Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'include/linux/poison.h')
0 files changed, 0 insertions, 0 deletions