The patch titled
tty: stop the tty vanishing under procfs access
has been added to the -mm tree. Its filename is
tty-stop-the-tty-vanishing-under-procfs-access.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: tty: stop the tty vanishing under procfs access
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/proc/array.c | 3 +++
1 files changed, 3 insertions(+)
diff -puN fs/proc/array.c~tty-stop-the-tty-vanishing-under-procfs-access fs/proc/array.c
--- a/fs/proc/array.c~tty-stop-the-tty-vanishing-under-procfs-access
+++ a/fs/proc/array.c
@@ -347,6 +347,8 @@ static int do_task_stat(struct task_stru
sigemptyset(&sigign);
sigemptyset(&sigcatch);
cutime = cstime = utime = stime = cputime_zero;
+
+ mutex_lock(&tty_mutex);
read_lock(&tasklist_lock);
if (task->sighand) {
spin_lock_irq(&task->sighand->siglock);
@@ -388,6 +390,7 @@ static int do_task_stat(struct task_stru
}
ppid = pid_alive(task) ? task->group_leader->real_parent->tgid : 0;
read_unlock(&tasklist_lock);
+ mutex_unlock(&tty_mutex);
if (!whole || num_threads<2)
wchan = get_wchan(task);
_
Patches currently in -mm which might be from alan@xxxxxxxxxxxxxxxxxxx are
tty-layer-comment-the-locking-assumptions-and-functions.patch
fix-tty-layer-dos-and-comment-relevant-code.patch
git-libata-all.patch
1-of-2-jmicron-driver.patch
1-of-2-jmicron-driver-hard_port_no-fix.patch
2-of-2-jmicron-driver-plumbing-and-quirk.patch
non-libata-driver-for-jmicron-devices.patch
via-pata-controller-xfer-fixes.patch
git-net.patch
netfilter-make-unused-signal-code-go-away-so-nobody-copies-its-broken-ness.patch
megaraid-gcc-41-warning-fix.patch
voyager-tty-locking.patch
edac-new-opteron-athlon64-memory-controller-driver.patch
edac-new-opteron-athlon64-memory-controller-driver-tidy.patch
sanitize-3c589_cs.patch
make-prot_write-imply-prot_read.patch
sgiioc4-fixup-use-of-mmio-ops.patch
remove-unused-tty_struct-variable.patch
there-is-no-devfs-there-has-never-been-a-devfs-we-have.patch
tty-locking-on-resize.patch
ahci-ati-sb600-sata-support-for-various-modes.patch
atiixp-ati-sb600-ide-support-for-various-modes.patch
dquot-add-proper-locking-when-using-current-signal-tty.patch
tty-trivial-kzalloc-opportunity.patch
tty-lock-ticogwinsz.patch
tty-stop-the-tty-vanishing-under-procfs-access.patch
ide-claim-extra-dma-ports-regardless-of-channel.patch
ide-always-release-dma-engine.patch
ide-error-handling-fixes.patch
ide-hpt3xxn-clocking-fixes.patch
ide-fix-hpt37x-timing-tables.patch
ide-optimize-hpt37x-timing-tables.patch
ide-fix-hpt3xx-hotswap-support.patch
ide-fix-the-case-of-multiple-hpt3xx-chips-present.patch
ide-hpt3xx-fix-pci-clock-detection.patch
ide-hpt3xx-fix-pci-clock-detection-fix-2.patch
piix-fix-82371mx-enablebits.patch
piix-remove-check-for-broken-mw-dma-mode-0.patch
piix-slc90e66-pio-mode-fallback-fix.patch
make-number-of-ide-interfaces-configurable.patch
ide_dma_speed-fixes.patch
hpt3xx-rework-rate-filtering.patch
hpt3xx-rework-rate-filtering-tidy.patch
hpt3xx-print-the-real-chip-name-at-startup.patch
hpt3xx-switch-to-using-pci_get_slot.patch
hpt3xx-cache-channels-mcr-address.patch
hpt3x7-merge-speedproc-handlers.patch
hpt370-clean-up-dma-timeout-handling.patch
enable-cdrom-dma-access-with-pdc20265_old.patch
ide-fix-revision-comparison-in-ide_in_drive_list.patch
ide-backport-piix-fixes-from-libata-into-the-legacy-driver.patch
hpt3xx-init-code-rewrite.patch
move-ide-to-unmaintained-drop-reference-to-old-git-tree.patch
drivers-ide-cleanups.patch
ide-remove-dma_base2-field-from-ide_hwif_t.patch
ide-reprogram-disk-pio-timings-on-resume.patch
asus-mv-ide-device-ids.patch
ide-support-for-via-8237a-southbridge.patch
config_pm=n-slim-drivers-ide-pci-sc1200c.patch
ide-check-that-generic_chipset-table-sizes-are-correct.patch
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