Try to format a device with 512 sector size. I will revert back the same device to 512 sector tomorrow and see if I can still reproduce. Here is the verbose log I collected, see if that helps.
2016-06-07 13:32:25.431373 7fce0cee28c0 10 stupidalloc commit_start releasing 0 in extents 0
2016-06-07 13:32:25.431580 7fce0cee28c0 10 stupidalloc commit_finish released 0 in extents 0
2016-06-07 13:32:25.431733 7fce0cee28c0 10 stupidalloc reserve need 1048576 num_free 306824863744 num_reserved 0
2016-06-07 13:32:25.431743 7fce0cee28c0 10 stupidalloc allocate want_size 1048576 alloc_unit 1048576 hint 0
2016-06-07 13:32:25.435021 7fce0cee28c0 4 rocksdb: DB pointer 0x7fce08909200
2016-06-07 13:32:25.435049 7fce0cee28c0 1 bluestore(/var/lib/ceph/osd/ceph-15) _open_db opened rocksdb path db options compression=kNoCompression,max_write_buffer_number=16,min_write_buffer_number_to_merge=3,recycle_log_file_num=16
2016-06-07 13:32:25.435057 7fce0cee28c0 20 bluestore(/var/lib/ceph/osd/ceph-15) _open_fm initializing freespace
2016-06-07 13:32:25.435066 7fce0cee28c0 10 freelist _init_misc bytes_per_key 0x80000, key_mask 0xfffffffffff80000
2016-06-07 13:32:25.435074 7fce0cee28c0 10 freelist create rounding blocks up from 0x6f9fd151e00 to 0x6f9fd180000 (0x6f9fd180 blocks)
2016-06-07 13:32:25.438853 7fce0cee28c0 -1 os/bluestore/BitmapFreelistManager.cc: In function 'void BitmapFreelistManager::_xor(uint64_t, uint64_t, KeyValueDB::Transaction)' thread 7fce0cee28c0 time 2016-06-07 13:32:25.435087
os/bluestore/BitmapFreelistManager.cc: 477: FAILED assert((offset & block_mask) == offset)
ceph version 10.2.0-2021-g55cb608 (55cb608f63787f7969514ad0d7222da68ab84d88)
1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x80) [0x562bdda880a0]
2: (BitmapFreelistManager::_xor(unsigned long, unsigned long, std::shared_ptr<KeyValueDB::TransactionImpl>)+0x12ed) [0x562bdd75a96d]
3: (BitmapFreelistManager::create(unsigned long, std::shared_ptr<KeyValueDB::TransactionImpl>)+0x33f) [0x562bdd75b34f]
4: (BlueStore::_open_fm(bool)+0xcd3) [0x562bdd641683]
5: (BlueStore::mkfs()+0x8b9) [0x562bdd6839b9]
6: (OSD::mkfs(CephContext*, ObjectStore*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, uuid_d, int)+0x117) [0x562bdd3226c7]
7: (main()+0x1003) [0x562bdd2b4533]
8: (__libc_start_main()+0xf0) [0x7fce09946830]
9: (_start()+0x29) [0x562bdd3038b9]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.
Thanks & Regards
Somnath
-----Original Message-----
From: Ramesh Chander
Sent: Tuesday, June 07, 2016 11:01 PM
To: Somnath Roy; Mark Nelson; Sage Weil
Cc: ceph-devel
Subject: RE: Anybody else hitting this panic in latest master with bluestore?
Hi Somnath,
I think setting 4k block size is done intentionally.
127
128 // Operate as though the block size is 4 KB. The backing file
129 // blksize doesn't strictly matter except that some file systems may
130 // require a read/modify/write if we write something smaller than
131 // it.
132 block_size = g_conf->bdev_block_size;
133 if (block_size != (unsigned)st.st_blksize) {
134 dout(1) << __func__ << " backing device/file reports st_blksize "
135 << st.st_blksize << ", using bdev_block_size "
136 << block_size << " anyway" << dendl;
137 }
138
Other than more fragmentation we should not see any issue by taking block size as 4k instead of 512. At least I am not aware of.
How to reproduce it? I can have a look.
-Ramesh
> -----Original Message-----
> From: Somnath Roy
> Sent: Wednesday, June 08, 2016 5:04 AM
> To: Somnath Roy; Mark Nelson; Sage Weil
> Cc: Ramesh Chander; ceph-devel
> Subject: RE: Anybody else hitting this panic in latest master with bluestore?
>
> Ok , I think I found out what is happening in my environment. This
> drive is formatted with 512 logical block size.
> BitMap allocator is by default is working with 4K block size and the
> calculation is breaking (?). I have reformatted the device with 4K and it worked fine.
> I don't think taking this logical block size parameter as user input
> may not be *wise*.
> Since OS needs that all devices is advertising the correct logical
> block size here.
>
> /sys/block/sdb/queue/logical_block_size
>
> Allocator needs to read the correct size from the above location.
> Sage/Ramesh ?
>
> Thanks & Regards
> Somnath
>
> -----Original Message-----
> From: ceph-devel-owner@xxxxxxxxxxxxxxx [mailto:ceph-devel-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Somnath Roy
> Sent: Tuesday, June 07, 2016 1:12 PM
> To: Mark Nelson; Sage Weil
> Cc: Ramesh Chander; ceph-devel
> Subject: RE: Anybody else hitting this panic in latest master with bluestore?
>
> Mark/Sage,
> That problem seems to be gone. BTW, rocksdb folder is not cleaned with
> 'make clean'. I took latest master and manually clean rocksdb folder
> as you suggested..
> But, now I am hitting the following crash in some of my drives. It
> seems to be related to block alignment.
>
> 0> 2016-06-07 11:50:12.353375 7f5c0fe938c0 -1
> os/bluestore/BitmapFreelistManager.cc: In function 'void
> BitmapFreelistManager::_xor(uint64_t, uint64_t, KeyValueDB::Transaction)'
> thread 7f5c0fe938c0 time 2016-06-07 11:50:12.349722
> os/bluestore/BitmapFreelistManager.cc: 477: FAILED assert((offset &
> block_mask) == offset)
>
> ceph version 10.2.0-2021-g55cb608
> (55cb608f63787f7969514ad0d7222da68ab84d88)
> 1: (ceph::__ceph_assert_fail(char const*, char const*, int, char
> const*)+0x80) [0x5652219dd0a0]
> 2: (BitmapFreelistManager::_xor(unsigned long, unsigned long,
> std::shared_ptr<KeyValueDB::TransactionImpl>)+0x12ed) [0x5652216af96d]
> 3: (BitmapFreelistManager::create(unsigned long,
> std::shared_ptr<KeyValueDB::TransactionImpl>)+0x33f) [0x5652216b034f]
> 4: (BlueStore::_open_fm(bool)+0xcd3) [0x565221596683]
> 5: (BlueStore::mkfs()+0x8b9) [0x5652215d89b9]
> 6: (OSD::mkfs(CephContext*, ObjectStore*,
> std::__cxx11::basic_string<char, std::char_traits<char>,
> std::allocator<char>
> > const&, uuid_d, int)+0x117) [0x5652212776c7]
> 7: (main()+0x1003) [0x565221209533]
> 8: (__libc_start_main()+0xf0) [0x7f5c0c8f7830]
> 9: (_start()+0x29) [0x5652212588b9]
> NOTE: a copy of the executable, or `objdump -rdS <executable>` is
> needed to interpret this.
>
> Here is my disk partitions..
>
> Osd.15 on /dev/sdi crashed..
>
>
> sdi 8:128 0 7T 0 disk
> ├─sdi1 8:129 0 10G 0 part /var/lib/ceph/osd/ceph-15
> └─sdi2 8:130 0 7T 0 part
> nvme0n1 259:0 0 15.4G 0 disk
> root@emsnode11:~/ceph-master/src# fdisk /dev/sdi
>
> Welcome to fdisk (util-linux 2.27.1).
> Changes will remain in memory only, until you decide to write them.
> Be careful before using the write command.
>
>
> Command (m for help): p
> Disk /dev/sdi: 7 TiB, 7681501126656 bytes, 15002931888 sectors
> Units: sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 16384 bytes I/O size
> (minimum/optimal): 16384 bytes / 16384 bytes Disklabel type: gpt Disk
> identifier: 4A3182B9-23EA-441A-A113-FE904E81BF3E
>
> Device Start End Sectors Size Type
> /dev/sdi1 2048 20973567 20971520 10G Linux filesystem
> /dev/sdi2 20973568 15002931854 14981958287 7T Linux filesystem
>
> Seems to be aligned properly , what alignment bitmap allocator is
> looking for (Ramesh ?).
> I will debug further and update.
>
> Thanks & Regards
> Somnath
>
> -----Original Message-----
> From: Somnath Roy
> Sent: Tuesday, June 07, 2016 11:06 AM
> To: 'Mark Nelson'; Sage Weil
> Cc: Ramesh Chander; ceph-devel
> Subject: RE: Anybody else hitting this panic in latest master with bluestore?
>
> I will try now and let you know.
>
> Thanks & Regards
> Somnath
>
> -----Original Message-----
> From: Mark Nelson [mailto:mnelson@xxxxxxxxxx]
> Sent: Tuesday, June 07, 2016 10:57 AM
> To: Somnath Roy; Sage Weil
> Cc: Ramesh Chander; ceph-devel
> Subject: Re: Anybody else hitting this panic in latest master with bluestore?
>
> Hi Somnath,
>
> Did Sage's suggestion fix it for you? In my tests rocksdb wasn't
> building properly after an upstream commit to detect when jemalloc
> isn't
> present:
>
> https://github.com/facebook/rocksdb/commit/0850bc514737a64dc8ca13de8
> 510fcad4756616a
>
> I've submitted a fix that is now in master. If you clean the rocksdb
> folder and try again with current master I believe it should work for you.
>
> Thanks,
> Mark
>
> On 06/07/2016 09:23 AM, Somnath Roy wrote:
> > Sage,
> > I did a global 'make clean' before build, isn't that sufficient ?
> > Still need to go
> to rocksdb folder and clean ?
> >
> >
> > -----Original Message-----
> > From: Sage Weil [mailto:sage@xxxxxxxxxxxx]
> > Sent: Tuesday, June 07, 2016 6:06 AM
> > To: Mark Nelson
> > Cc: Somnath Roy; Ramesh Chander; ceph-devel
> > Subject: Re: Anybody else hitting this panic in latest master with bluestore?
> >
> > On Tue, 7 Jun 2016, Mark Nelson wrote:
> >> I believe this is due to the rocksdb submodule update in PR #9466.
> >> I'm working on tracking down the commit in rocksdb that's causing it.
> >
> > Is it possible that the problem is that your build *didn't* update rocksdb?
> >
> > The ceph makefile isn't smart enough to notice changes in the
> > rocksdb/ dir
> and rebuild. You have to 'cd rocksdb ; make clean ; cd ..' after the
> submodule updates to get a fresh build.
> >
> > Maybe you didn't do that, and some of the ceph code is build using
> > the
> new headers and data structures that don't match the previously
> compiled rocksdb code?
> >
> > sage
> > PLEASE NOTE: The information contained in this electronic mail
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