From 6e2d10d9a3b3cd92648d3de5a4f2afa7d28e67e2 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Fri, 12 Aug 2016 14:21:31 -0400 Subject: [PATCH] Backport various fixes for mdadm-3.4 from RHEL Resolves: bz#1303380 Signed-off-by: Jes Sorensen --- ...ow_continue_command-remove-dead-code.patch | 51 +++++++++ ...eading-sync_completed-during-reshape.patch | 56 +++++++++ ...ay-in-the-mdinfo-structure-is-20-byt.patch | 31 +++++ ...tive-more-times-before-Grow_continue.patch | 106 ++++++++++++++++++ ...ling-of-sync_action-is-equal-to-idle.patch | 42 +++++++ ...erly-handle-values-of-sync_completed.patch | 89 +++++++++++++++ ...re-suspended-region-is-removed-when-.patch | 63 +++++++++++ ...ory-allocated-for-superblock-bitmap-.patch | 36 ++++++ mdadm.spec | 38 ++++++- 9 files changed, 510 insertions(+), 2 deletions(-) create mode 100644 mdadm-3.4-Grow_continue_command-remove-dead-code.patch create mode 100644 mdadm-3.4-IMSM-retry-reading-sync_completed-during-reshape.patch create mode 100644 mdadm-3.4-The-sys_name-array-in-the-mdinfo-structure-is-20-byt.patch create mode 100644 mdadm-3.4-check-reshape_active-more-times-before-Grow_continue.patch create mode 100644 mdadm-3.4-imsm-add-handling-of-sync_action-is-equal-to-idle.patch create mode 100644 mdadm-3.4-imsm-properly-handle-values-of-sync_completed.patch create mode 100644 mdadm-3.4-super-intel-ensure-suspended-region-is-removed-when-.patch create mode 100644 mdadm-3.4-super1-Clear-memory-allocated-for-superblock-bitmap-.patch diff --git a/mdadm-3.4-Grow_continue_command-remove-dead-code.patch b/mdadm-3.4-Grow_continue_command-remove-dead-code.patch new file mode 100644 index 0000000..5210d47 --- /dev/null +++ b/mdadm-3.4-Grow_continue_command-remove-dead-code.patch @@ -0,0 +1,51 @@ +commit 12add44564f195878c3e346e4bbae845dec67db3 +Author: Jes Sorensen +Date: Fri Mar 4 16:30:22 2016 -0500 + + Grow: Grow_continue_command() remove dead code + + All cases where fd2 is used are completed with a close(fd2), so there + is no need to set fd2 = -1 or check for it before exiting. + + Reviewed-by: NeilBrown + Signed-off-by: Jes Sorensen + +diff --git a/Grow.c b/Grow.c +index c4f417e..c4af5c0 100755 +--- a/Grow.c ++++ b/Grow.c +@@ -4752,7 +4752,7 @@ int Grow_continue_command(char *devname, int fd, + struct mdinfo *cc = NULL; + struct mdstat_ent *mdstat = NULL; + int cfd = -1; +- int fd2 = -1; ++ int fd2; + + dprintf("Grow continue from command line called for %s\n", + devname); +@@ -4796,8 +4796,6 @@ int Grow_continue_command(char *devname, int fd, + continue; + err = st->ss->load_super(st, fd2, NULL); + close(fd2); +- /* invalidate fd2 to avoid possible double close() */ +- fd2 = -1; + if (err) + continue; + break; +@@ -4894,7 +4892,6 @@ int Grow_continue_command(char *devname, int fd, + sysfs_init(content, fd2, mdstat->devnm); + + close(fd2); +- fd2 = -1; + + /* start mdmon in case it is not running + */ +@@ -4924,8 +4921,6 @@ int Grow_continue_command(char *devname, int fd, + ret_val = Grow_continue(fd, st, content, backup_file, 1, 0); + + Grow_continue_command_exit: +- if (fd2 > -1) +- close(fd2); + if (cfd > -1) + close(cfd); + st->ss->free_super(st); diff --git a/mdadm-3.4-IMSM-retry-reading-sync_completed-during-reshape.patch b/mdadm-3.4-IMSM-retry-reading-sync_completed-during-reshape.patch new file mode 100644 index 0000000..a3dd86e --- /dev/null +++ b/mdadm-3.4-IMSM-retry-reading-sync_completed-during-reshape.patch @@ -0,0 +1,56 @@ +From df2647fa5bbe84960dae11531e34bafef549b8ff Mon Sep 17 00:00:00 2001 +From: Pawel Baldysiak +Date: Tue, 17 May 2016 13:24:41 +0200 +Subject: [PATCH] IMSM: retry reading sync_completed during reshape + +The sync_completed after restarting a reshape +(for example - after reboot) is set to "delayed" until +mdmon changes the state. Mdadm does not wait for that change with +old kernels. If this condition occurs - it exits and reshape +is not continuing. This patch adds retry of reading sync_complete +with a delay. It gives time for mdmon to change the "delayed" state. + +Signed-off-by: Pawel Baldysiak +Signed-off-by: Jes Sorensen +--- + super-intel.c | 17 ++++++++++++----- + 1 file changed, 12 insertions(+), 5 deletions(-) + +diff --git a/super-intel.c b/super-intel.c +index ba3ee48..7e2860c 100644 +--- a/super-intel.c ++++ b/super-intel.c +@@ -10378,6 +10378,7 @@ exit_imsm_reshape_super: + int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) + { + int fd = sysfs_get_fd(sra, NULL, "sync_completed"); ++ int retry = 3; + unsigned long long completed; + /* to_complete : new sync_max position */ + unsigned long long to_complete = sra->reshape_progress; +@@ -10388,11 +10389,17 @@ int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) + return 1; + } + +- if (sysfs_fd_get_ll(fd, &completed) < 0) { +- dprintf("cannot read reshape_position (no reshape in progres)\n"); +- close(fd); +- return 1; +- } ++ do { ++ if (sysfs_fd_get_ll(fd, &completed) < 0) { ++ if (!retry) { ++ dprintf("cannot read reshape_position (no reshape in progres)\n"); ++ close(fd); ++ return 1; ++ } ++ usleep(30000); ++ } else ++ break; ++ } while (retry--); + + if (completed > position_to_set) { + dprintf("wrong next position to set %llu (%llu)\n", +-- +2.5.5 + diff --git a/mdadm-3.4-The-sys_name-array-in-the-mdinfo-structure-is-20-byt.patch b/mdadm-3.4-The-sys_name-array-in-the-mdinfo-structure-is-20-byt.patch new file mode 100644 index 0000000..91d89d6 --- /dev/null +++ b/mdadm-3.4-The-sys_name-array-in-the-mdinfo-structure-is-20-byt.patch @@ -0,0 +1,31 @@ +From 6e6e98746dba7e900f23e92bbb0da01fe7a169da Mon Sep 17 00:00:00 2001 +From: Nikhil Kshirsagar +Date: Fri, 10 Jun 2016 08:50:10 +0530 +Subject: [PATCH] The sys_name array in the mdinfo structure is 20 bytes of + storage. + +Increasing the size of this array to 32 bytes to handle cases with +longer device names. + +Signed-off-by: Nikhil Kshirsagar +Signed-off-by: Jes Sorensen +--- + mdadm.h | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/mdadm.h b/mdadm.h +index 3d6c638..1fd38a3 100755 +--- a/mdadm.h ++++ b/mdadm.h +@@ -289,7 +289,7 @@ struct mdinfo { + int container_enough; /* flag external handlers can set to + * indicate that subarrays have not enough (-1), + * enough to start (0), or all expected disks (1) */ +- char sys_name[20]; ++ char sys_name[32]; + struct mdinfo *devs; + struct mdinfo *next; + +-- +2.5.5 + diff --git a/mdadm-3.4-check-reshape_active-more-times-before-Grow_continue.patch b/mdadm-3.4-check-reshape_active-more-times-before-Grow_continue.patch new file mode 100644 index 0000000..df95841 --- /dev/null +++ b/mdadm-3.4-check-reshape_active-more-times-before-Grow_continue.patch @@ -0,0 +1,106 @@ +commit 8800f85381d0cd9689dee62bbbdafdb359100389 +Author: Xiao Ni +Date: Thu Jun 16 09:41:02 2016 +0800 + + MDADM:Check mdinfo->reshape_active more times before calling Grow_continue + + When reshaping a 3 drives raid5 to 4 drives raid5, there is a chance that + it can't start the reshape. If the disks are not enough to have spaces for + relocating the data_offset, it needs to call start_reshape and then run + mdadm --grow --continue by systemd. But mdadm --grow --continue fails + because it checkes that info->reshape_active is 0. + + The info->reshape_active is got from the superblock of underlying devices. + Function start_reshape write reshape to /sys/../sync_action. Before writing + latest superblock to underlying devices, mdadm --grow --continue is called. + There is a chance info->reshape_active is 0. We should wait for superblock + updating more time before calling Grow_continue. + + Signed-off-by: Xiao Ni + Signed-off-by: Jes Sorensen + +diff --git a/Grow.c b/Grow.c +index f184d9c..628f0e7 100755 +--- a/Grow.c ++++ b/Grow.c +@@ -4788,6 +4788,7 @@ int Grow_continue_command(char *devname, int fd, + dprintf("Grow continue is run for "); + if (st->ss->external == 0) { + int d; ++ int cnt = 5; + dprintf_cont("native array (%s)\n", devname); + if (ioctl(fd, GET_ARRAY_INFO, &array.array) < 0) { + pr_err("%s is not an active md array - aborting\n", devname); +@@ -4799,36 +4800,42 @@ int Grow_continue_command(char *devname, int fd, + * FIXME we should really get what we need from + * sysfs + */ +- for (d = 0; d < MAX_DISKS; d++) { +- mdu_disk_info_t disk; +- char *dv; +- int err; +- disk.number = d; +- if (ioctl(fd, GET_DISK_INFO, &disk) < 0) +- continue; +- if (disk.major == 0 && disk.minor == 0) +- continue; +- if ((disk.state & (1 << MD_DISK_ACTIVE)) == 0) +- continue; +- dv = map_dev(disk.major, disk.minor, 1); +- if (!dv) +- continue; +- fd2 = dev_open(dv, O_RDONLY); +- if (fd2 < 0) +- continue; +- err = st->ss->load_super(st, fd2, NULL); +- close(fd2); +- if (err) +- continue; +- break; +- } +- if (d == MAX_DISKS) { +- pr_err("Unable to load metadata for %s\n", +- devname); +- ret_val = 1; +- goto Grow_continue_command_exit; +- } +- st->ss->getinfo_super(st, content, NULL); ++ do { ++ for (d = 0; d < MAX_DISKS; d++) { ++ mdu_disk_info_t disk; ++ char *dv; ++ int err; ++ disk.number = d; ++ if (ioctl(fd, GET_DISK_INFO, &disk) < 0) ++ continue; ++ if (disk.major == 0 && disk.minor == 0) ++ continue; ++ if ((disk.state & (1 << MD_DISK_ACTIVE)) == 0) ++ continue; ++ dv = map_dev(disk.major, disk.minor, 1); ++ if (!dv) ++ continue; ++ fd2 = dev_open(dv, O_RDONLY); ++ if (fd2 < 0) ++ continue; ++ err = st->ss->load_super(st, fd2, NULL); ++ close(fd2); ++ if (err) ++ continue; ++ break; ++ } ++ if (d == MAX_DISKS) { ++ pr_err("Unable to load metadata for %s\n", ++ devname); ++ ret_val = 1; ++ goto Grow_continue_command_exit; ++ } ++ st->ss->getinfo_super(st, content, NULL); ++ if (!content->reshape_active) ++ sleep(3); ++ else ++ break; ++ } while (cnt-- > 0); + } else { + char *container; + diff --git a/mdadm-3.4-imsm-add-handling-of-sync_action-is-equal-to-idle.patch b/mdadm-3.4-imsm-add-handling-of-sync_action-is-equal-to-idle.patch new file mode 100644 index 0000000..a6e801c --- /dev/null +++ b/mdadm-3.4-imsm-add-handling-of-sync_action-is-equal-to-idle.patch @@ -0,0 +1,42 @@ +From b2be2b628b6305712c8df0b3a20ddddc0ac410fb Mon Sep 17 00:00:00 2001 +From: Alexey Obitotskiy +Date: Thu, 16 Jun 2016 11:31:36 +0200 +Subject: [PATCH 1/2] imsm: add handling of sync_action is equal to 'idle' + +After resync is stopped sync_action value become 'idle'. +We treat this case as normal termination of waiting, not as error. + +Signed-off-by: Alexey Obitotskiy +Reviewed-by: Pawel Baldysiak +Signed-off-by: Jes Sorensen +--- + super-intel.c | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +diff --git a/super-intel.c b/super-intel.c +index 7e2860c..7950bef 100644 +--- a/super-intel.c ++++ b/super-intel.c +@@ -10423,6 +10423,8 @@ int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) + if (sysfs_get_str(sra, NULL, "sync_action", + action, 20) > 0 && + strncmp(action, "reshape", 7) != 0) { ++ if (strncmp(action, "idle", 4) == 0) ++ break; + close(fd); + return -1; + } +@@ -10432,9 +10434,9 @@ int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) + return 1; + } + } while (completed < position_to_set); ++ + close(fd); + return 0; +- + } + + /******************************************************************************* +-- +2.5.5 + diff --git a/mdadm-3.4-imsm-properly-handle-values-of-sync_completed.patch b/mdadm-3.4-imsm-properly-handle-values-of-sync_completed.patch new file mode 100644 index 0000000..182a211 --- /dev/null +++ b/mdadm-3.4-imsm-properly-handle-values-of-sync_completed.patch @@ -0,0 +1,89 @@ +From 0febb20c458a488460eadade74a6c283aadaf96a Mon Sep 17 00:00:00 2001 +From: Alexey Obitotskiy +Date: Thu, 16 Jun 2016 11:31:37 +0200 +Subject: [PATCH 2/2] imsm: properly handle values of sync_completed + +The sync_completed can be set to such values: +- two numbers of processed sectors and total during synchronization, +separated with '/'; +- 'none' if synchronization process is stopped; +- 'delayed' if synchronization process is delayed. +Handle value of sync_completed not only as numbers but +also check for 'none' and 'delayed'. + +Signed-off-by: Alexey Obitotskiy +Reviewed-by: Pawel Baldysiak +Signed-off-by: Jes Sorensen +--- + super-intel.c | 36 ++++++++++++++++++++++++++++++++++-- + 1 file changed, 34 insertions(+), 2 deletions(-) + +diff --git a/super-intel.c b/super-intel.c +index 7950bef..92817e9 100644 +--- a/super-intel.c ++++ b/super-intel.c +@@ -10363,6 +10363,33 @@ exit_imsm_reshape_super: + return ret_val; + } + ++#define COMPLETED_OK 0 ++#define COMPLETED_NONE 1 ++#define COMPLETED_DELAYED 2 ++ ++static int read_completed(int fd, unsigned long long *val) ++{ ++ int ret; ++ char buf[50]; ++ ++ ret = sysfs_fd_get_str(fd, buf, 50); ++ if (ret < 0) ++ return ret; ++ ++ ret = COMPLETED_OK; ++ if (strncmp(buf, "none", 4) == 0) { ++ ret = COMPLETED_NONE; ++ } else if (strncmp(buf, "delayed", 7) == 0) { ++ ret = COMPLETED_DELAYED; ++ } else { ++ char *ep; ++ *val = strtoull(buf, &ep, 0); ++ if (ep == buf || (*ep != 0 && *ep != '\n' && *ep != ' ')) ++ ret = -1; ++ } ++ return ret; ++} ++ + /******************************************************************************* + * Function: wait_for_reshape_imsm + * Description: Function writes new sync_max value and waits until +@@ -10417,8 +10444,10 @@ int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) + } + + do { ++ int rc; + char action[20]; + int timeout = 3000; ++ + sysfs_wait(fd, &timeout); + if (sysfs_get_str(sra, NULL, "sync_action", + action, 20) > 0 && +@@ -10428,11 +10457,14 @@ int wait_for_reshape_imsm(struct mdinfo *sra, int ndata) + close(fd); + return -1; + } +- if (sysfs_fd_get_ll(fd, &completed) < 0) { ++ ++ rc = read_completed(fd, &completed); ++ if (rc < 0) { + dprintf("cannot read reshape_position (in loop)\n"); + close(fd); + return 1; +- } ++ } else if (rc == COMPLETED_NONE) ++ break; + } while (completed < position_to_set); + + close(fd); +-- +2.5.5 + diff --git a/mdadm-3.4-super-intel-ensure-suspended-region-is-removed-when-.patch b/mdadm-3.4-super-intel-ensure-suspended-region-is-removed-when-.patch new file mode 100644 index 0000000..3c52825 --- /dev/null +++ b/mdadm-3.4-super-intel-ensure-suspended-region-is-removed-when-.patch @@ -0,0 +1,63 @@ +From 942e1cdb4a6a5be02672bc686169c679e775c2be Mon Sep 17 00:00:00 2001 +From: NeilBrown +Date: Thu, 18 Feb 2016 15:53:32 +1100 +Subject: [PATCH] super-intel: ensure suspended region is removed when reshape + completes. + +A recent commit removed a call to abort_reshape() when IMSM reshape +completed. An unanticipated result of this is that the suspended +region is not cleared as it should be. +So after a reshape, a region of the array will cause all IO to block. + +Re-instate the required updates to suspend_{lo,hi} coped from +abort_reshape(). + +This is caught (sometimes) by the test suite. + +Also fix a couple of typos found while exploring the code. + +Reported-by: Ken Moffat +Cc: Artur Paszkiewicz +Fixes: 2139b03c2080 ("imsm: don't call abort_reshape() in imsm_manage_reshape()") +Signed-off-by: NeilBrown +Signed-off-by: Jes Sorensen +--- + super-intel.c | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +diff --git a/super-intel.c b/super-intel.c +index 90b7b6d..ff0506d 100644 +--- a/super-intel.c ++++ b/super-intel.c +@@ -10465,7 +10465,7 @@ int check_degradation_change(struct mdinfo *info, + * Function: imsm_manage_reshape + * Description: Function finds array under reshape and it manages reshape + * process. It creates stripes backups (if required) and sets +- * checheckpoits. ++ * checkpoints. + * Parameters: + * afd : Backup handle (nattive) - not used + * sra : general array info +@@ -10595,7 +10595,7 @@ static int imsm_manage_reshape( + + start = current_position * 512; + +- /* allign reading start to old geometry */ ++ /* align reading start to old geometry */ + start_buf_shift = start % old_data_stripe_length; + start_src = start - start_buf_shift; + +@@ -10700,6 +10700,10 @@ static int imsm_manage_reshape( + ret_val = 1; + abort: + free(buf); ++ /* See Grow.c: abort_reshape() for further explanation */ ++ sysfs_set_num(sra, NULL, "suspend_lo", 0x7FFFFFFFFFFFFFFFULL); ++ sysfs_set_num(sra, NULL, "suspend_hi", 0); ++ sysfs_set_num(sra, NULL, "suspend_lo", 0); + + return ret_val; + } +-- +2.5.0 + diff --git a/mdadm-3.4-super1-Clear-memory-allocated-for-superblock-bitmap-.patch b/mdadm-3.4-super1-Clear-memory-allocated-for-superblock-bitmap-.patch new file mode 100644 index 0000000..65ba514 --- /dev/null +++ b/mdadm-3.4-super1-Clear-memory-allocated-for-superblock-bitmap-.patch @@ -0,0 +1,36 @@ +From 1dcee1c9cbcf9592275914706b76b1931490092c Mon Sep 17 00:00:00 2001 +From: Jes Sorensen +Date: Wed, 6 Apr 2016 16:13:59 -0400 +Subject: [PATCH] super1: Clear memory allocated for superblock + bitmap before + use + +load_super1() did not clear memory allocated for the superblock + +bitmap. This causes issues if the superblock does not contain a bitmap +as later checks of bitmap features would rely on the bits being +cleared. + +This bug has been around for a long time, but was only exposed in +mdadm-3.4 with the introduction of the clustering code. + +Reported-by: Jan Stodola +Signed-off-by: Jes Sorensen +--- + super1.c | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/super1.c b/super1.c +index d6f3c93..8d5543f 100644 +--- a/super1.c ++++ b/super1.c +@@ -2016,6 +2016,8 @@ static int load_super1(struct supertype *st, int fd, char *devname) + return 1; + } + ++ memset(super, 0, SUPER1_SIZE); ++ + if (aread(&afd, super, MAX_SB_SIZE) != MAX_SB_SIZE) { + if (devname) + pr_err("Cannot read superblock on %s\n", +-- +2.5.5 + diff --git a/mdadm.spec b/mdadm.spec index 1a18650..cb6447b 100644 --- a/mdadm.spec +++ b/mdadm.spec @@ -1,7 +1,7 @@ Summary: The mdadm program controls Linux md devices (software RAID arrays) Name: mdadm Version: 3.4 -Release: 1%{?dist} +Release: 2%{?dist} Source: http://www.kernel.org/pub/linux/utils/raid/mdadm/mdadm-%{version}.tar.xz Source1: mdmonitor.init Source2: raid-check @@ -12,6 +12,15 @@ Source6: mdmonitor.service Source7: mdadm.conf Source8: mdadm_event.conf +Patch1: mdadm-3.4.1-fix-some-type-comparison.patch +Patch2: mdadm-3.4-super-intel-ensure-suspended-region-is-removed-when-.patch +Patch3: mdadm-3.4-super1-Clear-memory-allocated-for-superblock-bitmap-.patch +Patch4: mdadm-3.4-IMSM-retry-reading-sync_completed-during-reshape.patch +Patch5: mdadm-3.4-imsm-add-handling-of-sync_action-is-equal-to-idle.patch +Patch6: mdadm-3.4-imsm-properly-handle-values-of-sync_completed.patch +Patch7: mdadm-3.4-The-sys_name-array-in-the-mdinfo-structure-is-20-byt.patch +Patch8: mdadm-3.4-Grow_continue_command-remove-dead-code.patch +Patch9: mdadm-3.4-check-reshape_active-more-times-before-Grow_continue.patch # Fedora customization patches Patch97: mdadm-3.3-udev.patch Patch98: mdadm-2.5.2-static.patch @@ -28,6 +37,8 @@ Requires(preun): systemd-units Requires(postun): systemd-units coreutils Requires: libreport-filesystem +%define _hardened_build 1 + %description The mdadm program is used to create, manage, and monitor Linux MD (software RAID) devices. As such, it provides similar functionality to the raidtools @@ -38,12 +49,22 @@ file can be used to help with some common tasks. %prep %setup -q +%patch1 -p1 -b .comparison +%patch2 -p1 -b .stop-reshape +%patch3 -p1 -b .clear +%patch4 -p1 -b .retry +%patch5 -p1 -b .syncaction +%patch6 -p1 -b .synccompleted +%patch7 -p1 -b .sysname +%patch8 -p1 -b .dead +%patch9 -p1 -b .before + # Fedora customization patches %patch97 -p1 -b .udev %patch98 -p1 -b .static %build -make %{?_smp_mflags} CXFLAGS="$RPM_OPT_FLAGS" SYSCONFDIR="%{_sysconfdir}" mdadm mdmon +make %{?_smp_mflags} CXFLAGS="$RPM_OPT_FLAGS" LDFLAGS="$RPM_LD_FLAGS" SYSCONFDIR="%{_sysconfdir}" mdadm mdmon %install rm -rf %{buildroot} @@ -102,6 +123,19 @@ rm -rf %{buildroot} /etc/libreport/events.d/* %changelog +* Fri Aug 12 2016 Jes Sorensen - 3.4-2 +- Fix i686 build error +- Fix problem where it was not possible to stop an IMSM array during reshape +- Fix Degraded Raid1 array becomes inactive after rebooting +- Fix problem with raid0 arrays not being detected by Anaconda due to it + setting MALLOC_PERTURB_ +- Fix problem with reshaping IMSM arrays, where a new reshape could be + launched before the first reshape had fully completed, leading to + unpected results. +- Fix problem with mdadm large device names overflowing an internal buffer +- Fix problem about reshape stuck at beginning +- Resolves bz1303380 + * Fri Aug 12 2016 Jes Sorensen - 3.4-1 - Upgrade to mdadm-3.4 - Resolves bz1303380