# git rev-parse -q --verify 234b69e3e089d850a98e7b3145bd00e9b52b1111^{commit}
234b69e3e089d850a98e7b3145bd00e9b52b1111
already have revision, skipping fetch
# git checkout -q -f -B kisskb 234b69e3e089d850a98e7b3145bd00e9b52b1111
# git clean -qxdf
# < git log -1
# commit 234b69e3e089d850a98e7b3145bd00e9b52b1111
# Author: Junxiao Bi <junxiao.bi@oracle.com>
# Date:   Thu Sep 20 12:22:51 2018 -0700
# 
#     ocfs2: fix ocfs2 read block panic
#     
#     While reading block, it is possible that io error return due to underlying
#     storage issue, in this case, BH_NeedsValidate was left in the buffer head.
#     Then when reading the very block next time, if it was already linked into
#     journal, that will trigger the following panic.
#     
#     [203748.702517] kernel BUG at fs/ocfs2/buffer_head_io.c:342!
#     [203748.702533] invalid opcode: 0000 [#1] SMP
#     [203748.702561] Modules linked in: ocfs2 ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager ocfs2_stackglue configfs sunrpc dm_switch dm_queue_length dm_multipath bonding be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i iw_cxgb4 cxgb4 cxgb3i libcxgbi iw_cxgb3 cxgb3 mdio ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr ipv6 iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ipmi_devintf iTCO_wdt iTCO_vendor_support dcdbas ipmi_ssif i2c_core ipmi_si ipmi_msghandler acpi_pad pcspkr sb_edac edac_core lpc_ich mfd_core shpchp sg tg3 ptp pps_core ext4 jbd2 mbcache2 sr_mod cdrom sd_mod ahci libahci megaraid_sas wmi dm_mirror dm_region_hash dm_log dm_mod
#     [203748.703024] CPU: 7 PID: 38369 Comm: touch Not tainted 4.1.12-124.18.6.el6uek.x86_64 #2
#     [203748.703045] Hardware name: Dell Inc. PowerEdge R620/0PXXHP, BIOS 2.5.2 01/28/2015
#     [203748.703067] task: ffff880768139c00 ti: ffff88006ff48000 task.ti: ffff88006ff48000
#     [203748.703088] RIP: 0010:[<ffffffffa05e9f09>]  [<ffffffffa05e9f09>] ocfs2_read_blocks+0x669/0x7f0 [ocfs2]
#     [203748.703130] RSP: 0018:ffff88006ff4b818  EFLAGS: 00010206
#     [203748.703389] RAX: 0000000008620029 RBX: ffff88006ff4b910 RCX: 0000000000000000
#     [203748.703885] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00000000023079fe
#     [203748.704382] RBP: ffff88006ff4b8d8 R08: 0000000000000000 R09: ffff8807578c25b0
#     [203748.704877] R10: 000000000f637376 R11: 000000003030322e R12: 0000000000000000
#     [203748.705373] R13: ffff88006ff4b910 R14: ffff880732fe38f0 R15: 0000000000000000
#     [203748.705871] FS:  00007f401992c700(0000) GS:ffff880bfebc0000(0000) knlGS:0000000000000000
#     [203748.706370] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
#     [203748.706627] CR2: 00007f4019252440 CR3: 00000000a621e000 CR4: 0000000000060670
#     [203748.707124] Stack:
#     [203748.707371]  ffff88006ff4b828 ffffffffa0609f52 ffff88006ff4b838 0000000000000001
#     [203748.707885]  0000000000000000 0000000000000000 ffff880bf67c3800 ffffffffa05eca00
#     [203748.708399]  00000000023079ff ffffffff81c58b80 0000000000000000 0000000000000000
#     [203748.708915] Call Trace:
#     [203748.709175]  [<ffffffffa0609f52>] ? ocfs2_inode_cache_io_unlock+0x12/0x20 [ocfs2]
#     [203748.709680]  [<ffffffffa05eca00>] ? ocfs2_empty_dir_filldir+0x80/0x80 [ocfs2]
#     [203748.710185]  [<ffffffffa05ec0cb>] ocfs2_read_dir_block_direct+0x3b/0x200 [ocfs2]
#     [203748.710691]  [<ffffffffa05f0fbf>] ocfs2_prepare_dx_dir_for_insert.isra.57+0x19f/0xf60 [ocfs2]
#     [203748.711204]  [<ffffffffa065660f>] ? ocfs2_metadata_cache_io_unlock+0x1f/0x30 [ocfs2]
#     [203748.711716]  [<ffffffffa05f4f3a>] ocfs2_prepare_dir_for_insert+0x13a/0x890 [ocfs2]
#     [203748.712227]  [<ffffffffa05f442e>] ? ocfs2_check_dir_for_entry+0x8e/0x140 [ocfs2]
#     [203748.712737]  [<ffffffffa061b2f2>] ocfs2_mknod+0x4b2/0x1370 [ocfs2]
#     [203748.713003]  [<ffffffffa061c385>] ocfs2_create+0x65/0x170 [ocfs2]
#     [203748.713263]  [<ffffffff8121714b>] vfs_create+0xdb/0x150
#     [203748.713518]  [<ffffffff8121b225>] do_last+0x815/0x1210
#     [203748.713772]  [<ffffffff812192e9>] ? path_init+0xb9/0x450
#     [203748.714123]  [<ffffffff8121bca0>] path_openat+0x80/0x600
#     [203748.714378]  [<ffffffff811bcd45>] ? handle_pte_fault+0xd15/0x1620
#     [203748.714634]  [<ffffffff8121d7ba>] do_filp_open+0x3a/0xb0
#     [203748.714888]  [<ffffffff8122a767>] ? __alloc_fd+0xa7/0x130
#     [203748.715143]  [<ffffffff81209ffc>] do_sys_open+0x12c/0x220
#     [203748.715403]  [<ffffffff81026ddb>] ? syscall_trace_enter_phase1+0x11b/0x180
#     [203748.715668]  [<ffffffff816f0c9f>] ? system_call_after_swapgs+0xe9/0x190
#     [203748.715928]  [<ffffffff8120a10e>] SyS_open+0x1e/0x20
#     [203748.716184]  [<ffffffff816f0d5e>] system_call_fastpath+0x18/0xd7
#     [203748.716440] Code: 00 00 48 8b 7b 08 48 83 c3 10 45 89 f8 44 89 e1 44 89 f2 4c 89 ee e8 07 06 11 e1 48 8b 03 48 85 c0 75 df 8b 5d c8 e9 4d fa ff ff <0f> 0b 48 8b 7d a0 e8 dc c6 06 00 48 b8 00 00 00 00 00 00 00 10
#     [203748.717505] RIP  [<ffffffffa05e9f09>] ocfs2_read_blocks+0x669/0x7f0 [ocfs2]
#     [203748.717775]  RSP <ffff88006ff4b818>
#     
#     Joesph ever reported a similar panic.
#     Link: https://oss.oracle.com/pipermail/ocfs2-devel/2013-May/008931.html
#     
#     Link: http://lkml.kernel.org/r/20180912063207.29484-1-junxiao.bi@oracle.com
#     Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
#     Cc: Joseph Qi <jiangqi903@gmail.com>
#     Cc: Mark Fasheh <mark@fasheh.com>
#     Cc: Joel Becker <jlbec@evilplan.org>
#     Cc: Changwei Ge <ge.changwei@h3c.com>
#     Cc: <stable@vger.kernel.org>
#     Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
#     Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < git log --format=%s --max-count=1 234b69e3e089d850a98e7b3145bd00e9b52b1111
# < make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  allmodconfig
# Added to kconfig CONFIG_64BIT=n
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_HAVE_FTRACE_MCOUNT_RECORD=n
# Added to kconfig CONFIG_SAMPLES=n
# Added to kconfig CONFIG_MODULE_SIG=n
# yes \n | make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/kisskb/src/drivers/char/tpm/tpm2-cmd.c: In function 'tpm2_unseal_trusted':
/kisskb/src/drivers/char/tpm/tpm2-cmd.c:676:2: warning: 'blob_handle' may be used uninitialized in this function [-Wmaybe-uninitialized]
  tpm2_flush_context_cmd(chip, blob_handle, TPM_TRANSMIT_UNLOCKED);
  ^
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (ret == -EOPNOTSUPP)
     ^
/kisskb/src/drivers/input/joystick/analog.c:172:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
 #warning Precise timer not defined for this architecture.
  ^
/kisskb/src/fs/ocfs2/dlmglue.c:99:30: warning: 'lockdep_keys' defined but not used [-Wunused-variable]
 static struct lock_class_key lockdep_keys[OCFS2_NUM_LOCK_TYPES];
                              ^
In file included from /kisskb/src/arch/sparc/include/asm/cmpxchg.h:7:0,
                 from /kisskb/src/arch/sparc/include/asm/atomic_32.h:17,
                 from /kisskb/src/arch/sparc/include/asm/atomic.h:7,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/asm-generic/bitops/lock.h:5,
                 from /kisskb/src/arch/sparc/include/asm/bitops_32.h:102,
                 from /kisskb/src/arch/sparc/include/asm/bitops.h:7,
                 from /kisskb/src/include/linux/bitops.h:19,
                 from /kisskb/src/include/linux/kernel.h:11,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/wait.h:7,
                 from /kisskb/src/include/linux/wait_bit.h:8,
                 from /kisskb/src/include/linux/fs.h:6,
                 from /kisskb/src/fs/ocfs2/file.c:27:
/kisskb/src/fs/ocfs2/file.c: In function 'ocfs2_file_write_iter':
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/fs/ocfs2/file.c:2386:3: note: in expansion of macro 'xchg'
   xchg(&iocb->ki_complete, saved_ki_complete);
   ^
/kisskb/src/drivers/media/platform/qcom/camss/camss.c:996:12: warning: 'camss_runtime_suspend' defined but not used [-Wunused-function]
 static int camss_runtime_suspend(struct device *dev)
            ^
/kisskb/src/drivers/media/platform/qcom/camss/camss.c:1001:12: warning: 'camss_runtime_resume' defined but not used [-Wunused-function]
 static int camss_runtime_resume(struct device *dev)
            ^
In file included from /kisskb/src/include/linux/printk.h:7:0,
                 from /kisskb/src/include/linux/kernel.h:14,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/rculist.h:10,
                 from /kisskb/src/include/linux/sched/signal.h:5,
                 from /kisskb/src/drivers/net/usb/hso.c:55:
/kisskb/src/drivers/net/usb/hso.c: In function 'hso_serial_set_termios':
/kisskb/src/include/linux/kern_levels.h:5:18: warning: format '%d' expects argument of type 'int', but argument 4 has type 'tcflag_t {aka long unsigned int}' [-Wformat=]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^
/kisskb/src/include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH'
 #define KERN_INFO KERN_SOH "6" /* informational */
                   ^
/kisskb/src/include/linux/printk.h:315:9: note: in expansion of macro 'KERN_INFO'
  printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         ^
/kisskb/src/drivers/net/usb/hso.c:115:3: note: in expansion of macro 'pr_info'
   pr_info("[%d:%s] " fmt,     \
   ^
/kisskb/src/drivers/net/usb/hso.c:1406:3: note: in expansion of macro 'hso_dbg'
   hso_dbg(0x16, "Termios called with: cflags new[%d] - old[%d]\n",
   ^
/kisskb/src/include/linux/kern_levels.h:5:18: warning: format '%d' expects argument of type 'int', but argument 5 has type 'tcflag_t {aka long unsigned int}' [-Wformat=]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^
/kisskb/src/include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH'
 #define KERN_INFO KERN_SOH "6" /* informational */
                   ^
/kisskb/src/include/linux/printk.h:315:9: note: in expansion of macro 'KERN_INFO'
  printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         ^
/kisskb/src/drivers/net/usb/hso.c:115:3: note: in expansion of macro 'pr_info'
   pr_info("[%d:%s] " fmt,     \
   ^
/kisskb/src/drivers/net/usb/hso.c:1406:3: note: in expansion of macro 'hso_dbg'
   hso_dbg(0x16, "Termios called with: cflags new[%d] - old[%d]\n",
   ^
/kisskb/src/drivers/tty/serial/sunzilog.c:1132:13: warning: 'sunzilog_putchar' defined but not used [-Wunused-function]
 static void sunzilog_putchar(struct uart_port *port, int ch)
             ^
In file included from /kisskb/src/arch/sparc/include/asm/cmpxchg.h:7:0,
                 from /kisskb/src/arch/sparc/include/asm/atomic_32.h:17,
                 from /kisskb/src/arch/sparc/include/asm/atomic.h:7,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/asm-generic/bitops/lock.h:5,
                 from /kisskb/src/arch/sparc/include/asm/bitops_32.h:102,
                 from /kisskb/src/arch/sparc/include/asm/bitops.h:7,
                 from /kisskb/src/include/linux/bitops.h:19,
                 from /kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:11:
/kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function 'ixgbevf_xdp_setup':
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4448:4: note: in expansion of macro 'xchg'
    xchg(&adapter->rx_ring[i]->xdp_prog, adapter->xdp_prog);
    ^
/kisskb/src/scripts/unifdef.c: In function 'Mpass':
/kisskb/src/scripts/unifdef.c:453:28: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation]
 static void Mpass (void) { strncpy(keyword, "if  ", 4); Pelif(); }
                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~
WARNING: EXPORT symbol "__lshrdi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "___rw_write_enter" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__ashldi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__ndelay" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__udelay" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__ashrdi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "___rw_read_try" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__muldi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__divdi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "bzero_1page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "___rw_read_enter" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "___rw_read_exit" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "empty_zero_page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "__copy_1page" [vmlinux] version generation failed, symbol will not be versioned.
arch/sparc/kernel/head_32.o: In function `current_pc':
arch/sparc/kernel/.tmp_head_32.o:(.head.text+0x5040): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
arch/sparc/kernel/head_32.o: In function `halt_notsup':
arch/sparc/kernel/.tmp_head_32.o:(.head.text+0x5100): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
arch/sparc/kernel/head_32.o: In function `leon_init':
arch/sparc/kernel/.tmp_head_32.o:(.init.text+0xa4): relocation truncated to fit: R_SPARC_WDISP22 against symbol `leon_smp_cpu_startup' defined in .text section in arch/sparc/kernel/trampoline_32.o
arch/sparc/kernel/process_32.o:(.fixup+0x4): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/process_32.o:(.fixup+0xc): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x0): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x8): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x10): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x18): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x20): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x28): additional relocation overflows omitted from the output
make[1]: *** [/kisskb/src/Makefile:1026: vmlinux] Error 1
make: *** [Makefile:146: sub-make] Error 2
Command 'make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_sparc-allmodconfig_sparc64
# Build took: 0:02:35.129076