# git rev-parse -q --verify 0d3eb744aed40ffce820cded61d7eac515199165^{commit}
0d3eb744aed40ffce820cded61d7eac515199165
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0d3eb744aed40ffce820cded61d7eac515199165
# git clean -qxdf
# < git log -1
# commit 0d3eb744aed40ffce820cded61d7eac515199165
# Merge: dfc191544864 5da7cb193db3
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Apr 10 14:15:17 2023 -0700
# 
#     Merge tag 'urgent-rcu.2023.04.07a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
#     
#     Pull RCU fix from Paul McKenney:
#      "This fixes a pair of bugs in which an improbable but very real
#       sequence of events can cause kfree_rcu() to be a bit too quick about
#       freeing the memory passed to it.
#     
#       It turns out that this pair of bugs is about two years old, and so
#       this is not a v6.3 regression. However: (1) It just started showing up
#       in the wild and (2) Its consequences are dire, so its fix needs to go
#       in sooner rather than later.
#     
#       Testing is of course being upgraded, and the upgraded tests detect
#       this situation very quickly. But to the best of my knowledge right
#       now, the tests are not particularly urgent and will thus most likely
#       show up in the v6.5 merge window (the one after this coming one).
#     
#       Kudos to Ziwei Dai and his group for tracking this one down the hard
#       way!"
#     
#     * tag 'urgent-rcu.2023.04.07a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
#       rcu/kvfree: Avoid freeing new kfree_rcu() memory after old grace period
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-ld --version
# < git log --format=%s --max-count=1 0d3eb744aed40ffce820cded61d7eac515199165
# < make -s -j 160 ARCH=m68k O=/kisskb/build/linus_sun3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  sun3_defconfig
# < make -s -j 160 ARCH=m68k O=/kisskb/build/linus_sun3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  help
# make -s -j 160 ARCH=m68k O=/kisskb/build/linus_sun3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  olddefconfig
# make -s -j 160 ARCH=m68k O=/kisskb/build/linus_sun3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/m68k-linux/bin/m68k-linux-  
In file included from /kisskb/src/include/linux/swab.h:5,
                 from /kisskb/src/include/uapi/linux/byteorder/big_endian.h:14,
                 from /kisskb/src/include/linux/byteorder/big_endian.h:5,
                 from /kisskb/src/arch/m68k/include/uapi/asm/byteorder.h:5,
                 from /kisskb/src/include/asm-generic/bitops/le.h:6,
                 from /kisskb/src/arch/m68k/include/asm/bitops.h:545,
                 from /kisskb/src/include/linux/bitops.h:68,
                 from /kisskb/src/include/linux/kernel.h:22,
                 from /kisskb/src/drivers/net/ethernet/i825xx/sun3_82586.c:31:
/kisskb/src/drivers/net/ethernet/i825xx/sun3_82586.c: In function 'sun3_82586_timeout':
/kisskb/src/drivers/net/ethernet/i825xx/sun3_82586.c:989:108: warning: array subscript 1 is above array bounds of 'volatile struct transmit_cmd_struct *[1]' [-Warray-bounds]
   printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
                                                                                                ~~~~~~~~~~~~^~~
/kisskb/src/include/uapi/linux/swab.h:107:12: note: in definition of macro '__swab16'
  __fswab16(x))
            ^
/kisskb/src/include/linux/printk.h:455:26: note: in expansion of macro 'printk_index_wrap'
 #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
                          ^~~~~~~~~~~~~~~~~
/kisskb/src/drivers/net/ethernet/i825xx/sun3_82586.c:989:3: note: in expansion of macro 'printk'
   printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
   ^~~~~~
In file included from /kisskb/src/include/linux/rculist.h:10,
                 from /kisskb/src/include/linux/pid.h:5,
                 from /kisskb/src/include/linux/sched.h:14,
                 from /kisskb/src/fs/btrfs/volumes.c:6:
/kisskb/src/fs/btrfs/volumes.c: In function 'btrfs_init_new_device':
/kisskb/src/include/linux/list.h:74:12: warning: 'seed_devices' may be used uninitialized in this function [-Wmaybe-uninitialized]
  new->prev = prev;
  ~~~~~~~~~~^~~~~~
/kisskb/src/fs/btrfs/volumes.c:2621:27: note: 'seed_devices' was declared here
  struct btrfs_fs_devices *seed_devices;
                           ^~~~~~~~~~~~
Completed OK
# rm -rf /kisskb/build/linus_sun3_defconfig_m68k-gcc8
# Build took: 0:00:54.912721